Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Test results for power absorbed by a fan on a dynamometer. | ||
| View original record | R.R. 148 (20 H) (C. 898. 26.2.09) G. 6740. X1017 4000 Power absorbed by fan taken on dynamometer & Lowe 27/5/09 980 chassis. with & without fan. .7 HP at 1000 1 HP at 1500 1003 same CP 27/5 | ||
| scan0002 | Bench experiments on a 40/50 standard six-bladed radiator fan and the same fan with three blades removed. | ||
| View original record | To R & E. from EFC. c. CJ. & PN. c. BY. DA. EP. c. RG. Wor. X 1017 EFC1/T18.9.24. X. 3438 X.1017 BENCH EXPERIMENTS ON 40/50 STANDARD SIX-BLADED RADIATOR FAN AND ON THE SAME FAN WITH THREE BLADES… | ||
| scan0003 | Fan power speed curves, noting issues with belt slippage at high motor speeds. | ||
| View original record | Contd. -2- EFC1/T18.9.24. subtracted from the power so estimated when driving the fan and the result for ordinary loadings of the motor is reasonably accurate). In determining the fan power speed… | ||
| scan0004 | Power tests for fan belts, detailing motor speeds, pulley ratios, and power-speed laws for six-blade and three-blade fans. | ||
| View original record | Contd. -3- EFCl/T18.9.24. though motor speeds of 1000 r.p.m. in the former case and 1200 in the latter, could be attained. As stated, the results of these power tests are herewith exhibited in the… | ||
| scan0005 | Report page detailing the power required to drive fans, the effect of belt slippage, and the measurement of air stream velocity. | ||
| View original record | Contd. -4-5 EFC1/T18.9.24. In the ideal action of the fan, the power is proportional to the cube of the speed. Here it is proportional approximately respectively to the 2.8th and 2.7th powers which… | ||
| scan0006 | Experimental setup to measure fan thrust using a spring balance and a revolving turntable. | ||
| View original record | Contd. -5- EFC/T18.9.24. curve supplied with the instrument, are exhibited as curves herewith of air velocity in feet per minute on a fan speed base. It will be seen that the air velocity, as would be… | ||
| scan0007 | Graph comparing the air stream velocity of a three-bladed vs. a six-bladed 40/50 standard fan at various speeds. | ||
| View original record | VELOCITY OF AIR STREAM OF 40/50 STANDARD FAN AT VARIOUS SPEEDS AIR VELOCITY (FT/MIN) Y-AXIS SCALE: 0, 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800, 2000, 2200, 2400, 2600, 2800, 3000 FAN SPEED… | ||
| scan0008 | Graph showing the power absorbed by a 40/50 standard fan at various speeds, comparing six and three-bladed fans. | ||
| View original record | POWER ABSORBED BY 40/50 STANDARD FAN AT VARIOUS SPEEDS SIX BLADED FAN THREE BLADED FAN APPROX LAW FOR SIX BLADED FAN. H = .01910 S^2.808 x 10^-6 APPROX LAW FOR THREE BLADED FAN H = .02562 S^2.692 x… | ||
| scan0009 | Report from Dr. Watts of Ogilvie & Partners regarding a new fan design for the 40/50 HP chassis. | ||
| View original record | R. By. c. CJ. c. DJ. c. Wor. c. BFP. c. Hs. X.1017 Rg1/W24. 9. 24 X.3438 FAN FOR 40/50 H.P.CHASSIS. I attach hereto copy of a report received from Dr.Watts of Ogilvie & Partners, with regard to the… | ||
| scan0010 | Letter from Ogilvie & Partners providing recommendations for improving the fan design on the 40-50 HP chassis. | ||
| View original record | COPY. OGILVIE & PARTNERS, LTD. 104, High Holborn, LONDON, W.C.R. 19th. September, 1924. A. J. Rowledge, Esq., Messrs. Rolls-Royce Ltd., Nightingale Rd., Derby. Dear Rowledge, I have considered the fan… | ||
| scan0011 | Letter discussing fan blade design, focusing on blade twist, torque coefficients, and material suggestions. | ||
| View original record | Messrs. Rolls Royce Ltd. 2. (i) Making the speed of the fan increase at a slower rate than the speed of the car, in which case the power could be made to decrease near to zero at high speeds. (ii)… | ||
| scan0012 | Blueprint detailing the design, angles, and cross-section of a blade. | ||
| View original record | 8 TO 10 S.W.G. BLADE SECTION TWICE FULL SIZE. BEND WITH CENTRE LINE ON ARC OF 1 IN 20. 10.875 R. 20. TRAILING EDGE. 2 1/4". SWEEP BACK 1 IN 10. TRY ALSO 1 IN 15 & 1 IN 20. IF IT BE DECIDED TO HAVE A… | ||
| scan0013 | From EFC to RHC on the subject of fan tests, detailing completed and remaining work on various fan models. | ||
| View original record | To RHC. from EFC. X.1017. RE FAN TESTS. The following fan tests have now been completed:- Power to drive tests taken in our laboratory of:- (1) Standard 40/50 6-bladed fan. (2) Ditto, with three… | ||
| scan0014 | Bench experiments measuring the thrust of various radiator fans at different speeds. | ||
| View original record | To R. & E. from EFC. c. CJ. & PN. c. EY. EP. Mx. c. Wor. RG. Da. c. Hs. X1017 EFC2/T19.11.24. X.1017. BENCH EXPERIMENTS ON VARIOUS RADIATOR FANS. X3438 Thrust of fan at various speeds. Further to our… | ||
| scan0015 | Continued report on fan testing, discussing available fans, methodology, and the relationship between fan thrust and cooling efficiency. | ||
| View original record | Contd. -2- A curve of a small ventilator fan is also given. It is understood that there will be available for the tests a further 40/50 fan with hanging back blades. There is further a special fan… | ||
| scan0016 | The methodology for comparing the efficiencies of various radiator fans by combining performance curves. | ||
| View original record | Contd. -3- EFC2/T19.11.24. different radiators and fans, and in particular with fans of varying tip diameters. On these lines therefore the thrust of ~~air~~ the fan may be taken as our basic… | ||
| scan0017 | Technical analysis comparing the power requirements and efficiency of six-bladed versus three-bladed fans. | ||
| View original record | Contd. -4- EFC2/T19.11.24. connecting link. This necessitates drawing curves of motor or engine power required to drive on a fan speed base instead of on a motor speed or chassis engine speed base.… | ||
| scan0018 | Fan technical efficiency and thrust, referencing experimental work and power curves. | ||
| View original record | Contd. -5- EFC2/T19.11.24. is not of major importance as it would be in the case of a water pump, where the power to drive might be taken as negligible. Instead we may consider that in this case the… | ||
| scan0019 | Additional notes comparing the performance of six-bladed and three-bladed fans. | ||
| View original record | 20.11.24. 26- Contd. ADDITIONAL NOTES. In the second paragraph on p.4 of the report, it was stated that the result of the comparison (of the six-bladed and three-bladed 40/50 fan) showed that the… | ||
| scan0020 | Comparison of the performance of six-blader and three-blader engine fans. | ||
| View original record | -7- Contd. There is an impression that although the six-blader fan is better at low engine speeds, the three-blader fan is better at high engine speeds. Our experiments do not show any evidence of… | ||
| scan0021 | Graph of thrust-fan speed curves for various fans, Set B. | ||
| View original record | B. THRUST-FAN SPEED CURVES OF VARIOUS FANS (SET B) 1. STD 40/50 6 BLADE FAN. (22" DIA) 2. STD 40/50 FAN WITH 3 BLADES REMOVED. 3. E.A.C. 4 BLADED FAN. (23" DIA) 4. HISPANO-SUIZA FAN. (17 1/2" DIA) 5.… | ||
| scan0022 | Graph of HP vs Fan Speed curves for a standard 6-blade fan and the same fan with 3 blades removed. | ||
| View original record | H.P.—FAN SPEED CURVES OF VARIOUS FANS. 1. STD 40/50 6 BLADE FAN. 2. STD 40/50 FAN WITH 3 BLADES REMOVED. Y-AXIS: H.P. X-AXIS: FAN SPEED. (R.P.M.). C. NEW 20-11-24 E.7.4 20/11/24 | ||
| scan0023 | Graph showing power absorbed versus thrust for a standard 6-bladed fan compared to the same fan with 3 blades removed. | ||
| View original record | POWER ABSORBED BY VARIOUS FANS AT VARIOUS THRUSTS. 1. STD 40/50 6 BLADED FAN. 2. - DITTO - WITH 3 BLADES REMOVED. Y-Axis Label: H.P. X-Axis Label: THRUST IN LBS. Handwritten in bottom right: H.E.W.… | ||
| scan0024 | Further bench experiments on radiator fans, detailing a rearranged testing apparatus. | ||
| View original record | To R. & E. from EFC. c. CJ. Da. Rg. c. Wor. Ev. X1017 EFC1/T17.12.24. X.1017. FURTHER BENCH EXPERIMENTS ON RADIATOR FANS. X3438 Instead of continuing these experiments in the manner described in the… | ||
| scan0025 | Report page analyzing the results from fan tests by comparing performance curves for power, thrust, and speed. | ||
| View original record | 2 Contd. EFC1/T17.12.24. In the first instance the various fans referred to in our previous report have been taken in succession through this test (See attached list of fans and ref. Nos.). The curves… | ||
| scan0026 | The testing of a four-bladed fan, noting improved efficiency and noise levels, with plans for further modifications. | ||
| View original record | Contd. -3- EFC1/T17.12.24. have a four-bladed fan made with an EAC. hub, on which the blades were similarly shaped, but larger, up to the full dia. (23") of the ordinary EAC. fan. It was immediately… | ||
| scan0027 | List of various fans tested, along with their fan tip diameters and handwritten notes. | ||
| View original record | 16.12.24. EAC FAN TESTS. Nos. & Descriptions of fans tested. Fan tip dia. 1. Standard 40/50 six-bladed fan. 22" 2. Standard 40/60 six-bladed fan, with three blades removed. 22" 3. EAC. four-bladed… | ||
| scan0028 | Performance comparison graph for various fan designs, plotting speed and power against axial thrust. | ||
| View original record | Fan tip dia. 1. Standard 40/50 six-bladed fan. 22" 2. Standard 40/50 six-bladed fan with three blades removed. 22" 3. EAC. four-bladed fan. 23" 4. Hispano fan. 17 1/2" 5. High speed 40/50 six-bladed… | ||
| scan0029 | Graph comparing the thrust and slip performance of twelve different fan designs against engine speed. | ||
| View original record | PERCENTAGE SLIP THRUST IN LBS WEIGHT THRUST SLIP 40/50 ENGINE SPEED (R.P.M) CHASSIS M.P.H. 15/52 AXLE. 33.5" DIA TYRE. F. Fan tip dia. 1. Standard 40/50 six-bladed fan. 22" 2. Standard 40/50… | ||
| scan0030 | Graph comparing the speed and power consumption of various engine fan designs. | ||
| View original record | Y-Axis Left: FAN SPEED (R.P.M.) Y-Axis Right: MOTOR OR ENGINE POWER REQUIRED TO DRIVE FAN (H.P.) X-Axis Top: 40/50 ENGINE SPEED (R.P.M.) X-Axis Bottom: CHASSIS M.P.H. 15/52 AXLE. 33.5" TYRE DIA. Chart… | ||
| scan0031 | Table of ratios for fan speeds corresponding to various thrusts of different fan types. | ||
| View original record | Ratios. FAN SPEEDS CORRESPONDING TO VARIOUS THRUSTS OF VARIOUS FANS. 1st Sac N | THRUST (lbs.) | 1. Std. 40/50 6-bladed fan. | 2. Std. 40/50 6-bladed fan with 3 blades removed. | 3. Eagle 4-bladed… | ||
| scan0032 | Data table showing fan speeds corresponding to various thrusts for different types of fans. | ||
| View original record | 2ND Set of curves (E) FAN SPEEDS CORRESPONDING TO VARIOUS THRUSTS OF VARIOUS FANS. THRUST (lbs.) Columns: (1) Std. 40/50 6-bladed Fan. (2) Std. 40/50 6-bladed fan with 3 blades removed. (3) F.A.C.… | ||
| scan0033 | Confirming plans for fan tests, involving modifications to an EAC fan and the creation of an experimental Goshawk fan. | ||
| View original record | To RHC. from EFC. X1017 EFCl/Y19.12.24. X.1017. RE FAN TESTS. Confirming our various conversations, it is agreed that you will make various modifications as verbally desired to the blades of the… | ||
| scan0034 | Engine cooling issues, comparing fans, and the benefits of louvred bonnets over shuttered ones. | ||
| View original record | X1017 To HS. and EFC. c. to CJ. BJ. c. to RG. E. c. to DA. R2/M31.12.24. 40/50 WATER BOILING. X.766 X.3456 X.1017 EFC. has found a fan which promises to be better than our standard - i.e. with a… | ||
| scan0035 | Customer complaints about water boiling and the testing of an improved fan design as a remedy. | ||
| View original record | X. 1017 Fans MS. EFC. BY16/H. 21. 1. 25. ------------------- BJ. has written me stating that summer will be approaching before long, and he is under the impression that we have some remedy that we can… | ||
| scan0036 | List of Goshawk size fans tested, detailing their descriptions and fan tip diameters. | ||
| View original record | X1017 21.1.25. X.1017. LIST OF GOSHAWK SIZE FANS. Nos. & Descriptions of fans tested. Fan tip dia. 4. Hispano fan. 17½" 7. Goshawk. 18" 21. Wide bladed fan. 18" 22. No.21 with 1" cut off leading… | ||
| scan0037 | Final investigations into the efficiency and shape of 20 HP fans, and a request for an EAC fan. | ||
| View original record | X1017 To RMC. from EFC. EFC2/T4.2.25. X.1017. RE FANS. We have now finally completed our investigations of 20 HP. fans and are satisfied that the last fan you made up for us to our requirements is… | ||
| scan0038 | Comparison of the blade particulars and dimensions for a Goshawk No. 27 fan and a Hispano fan. | ||
| View original record | PARTICULARS OF GOSHAWK No 27 AND HISPANO FANS. | | GOSHAWK | HISPANO | |---|---|---| | LENGTH OF BLADE | 9.0" | 8.75" | | ANGLE | 20° | 30° | | RADIUS OF ARC OF BLADE | 4.68" | 4.375" | | CHORD OF ARC… | ||
| scan0039 | Calculation sheet detailing the fan speed of the Goshawk engine at a specific road speed. | ||
| View original record | EFC. X.1017. 5.2.25. GOSHAWK FAN SPEED. Engine speed 60 m.p.h. = 2,920 r.p.m. Ratio of engine pulley to fan pulley = 1 : 1.316. ... Fan speed at 60 m.p.h. = 3,840 r.p.m. (Assuming 11/50 axle ratio and… | ||
| scan0040 | Bench experiments conducted on 20 HP radiator fans. | ||
| View original record | To R. from EFC. c. CJ. E. Da. c. By. Rg. X1017 EFC1/T9.2.25. X.1017. BENCH EXPERIMENTS ON 20 HP. RADIATOR FANS. X425 In our EFC1/T17.12.24, it was mentioned at the end that an experimental 20 HP. fan… | ||
| scan0041 | Methodology and results of testing various fan designs and configurations. | ||
| View original record | EFC1/T9.2.25. -2- Contd. expected with different sizes of pulleys (driving or driven). Curves similar to groups F and Ge of our last report are not given this time. Instead, there is, however, sheet… | ||
| scan0042 | Fan experiments, comparing the performance and design of fans No. 26 and No. 27. | ||
| View original record | EFC1/T9.2.25. -3- Contd. somewhat similar to the Hispano, but this one did not come out so well as the Hispano, or as the others, the blades being apparently too narrow. Passing over No. 25, we then… | ||
| scan0043 | Engine cooling fan efficiency, speed, drive belt ratios and wear. | ||
| View original record | EFCl/T9.2.25. -4- Contd. It appears from our tests that the leading edge of the fan is of main importance from the point of view of efficiency and the trailing edge from the point of view of whether… | ||
| scan0044 | Technical analysis comparing fan speed ratios, cooling effects, and power requirements between a standard and an experimental fan. | ||
| View original record | EFC1/T9.2.25. -5- Contd. It would, however, appear that we do not want to lower the fan speed ratio to such an extent that at moder- ate speeds we get less thrust (assumed to represent the cooling… | ||
| scan0045 | Performance comparison of fans driven with the same speed ratio. | ||
| View original record | EFC1/T9.2.25. -6- Contd. For a performance comparison of fans driven with the same speed ratio see sheet II, which exhibits on a fan-speed base, the power required to drive and the thrust produced for… | ||
| scan0046 | Graph comparing the performance of various Hispano and Goshawk engine fans, plotting speed and power against axial thrust. | ||
| View original record | I No. FAN. 4. HISPANO. 7. ORIGINAL GOSHAWK. 21. 1ST MODIFICATION. GOSHAWK. (WIDE BLADES SIMILAR TO MALTESE CROSS) 22. 2ND MODIFICATION. GOSHAWK. (NO. 21 WITH 1" CUT OFF LEADING EDGE) 23. 3RD… | ||
| scan0047 | Graph comparing the power and thrust performance of three different aircraft engine fans against fan speed. | ||
| View original record | II No FAN. 4 HISPANO-SUIZA 7 PRESENT STANDARD GOSHAWK. 27 FINAL EXPERIMENTAL GOSHAWK. POWER REQUIRED TO DRIVE FAN. (H.P.) AXIAL THRUST OF FAN IN LBS. WEIGHT. THRUST POWER FAN SPEED. (r.p.m.) H.E.W.… | ||
| scan0048 | Table comparing fan speeds corresponding to various thrusts for different 20 HP fan designs. | ||
| View original record | 1900/up FAN SPEEDS CORRESPONDING TO VARIOUS THRUSTS OF VARIOUS FANS. -20 HP- THRUST (lbs) Standard 20 HP fan. Hispano fan. Final modfn. to exol. 20 HP fan. 1 | 1.00 | .965 | 1.023 2 | 1.00 | .967 |… | ||
| scan0049 | Table of fan speeds corresponding to various thrusts for different 20 HP fans. | ||
| View original record | FAN SPEEDS CORRESPONDING TO VARIOUS THRUSTS OF VARIOUS FANS. -20 HP- | | Standard 20 HP fan. | Hispano fan. | Final modfn. to expl. 20. HP. fan. | |---|---|---|---| | 1 | 850 | 820 | 870 | | 2 | 1200… | ||
| scan0050 | From EFC to RHC requesting an experimental fan, a modified starter motor, and a metal tube for experiments. | ||
| View original record | To RHC. from EFC. X1017 EFCl/T16.2.25. X4120 X1017 X1699 We trust you will shortly be able to let us have an experimental EAC. fan, as upon the completion of these fan experiments depends our being… | ||
| scan0051 | Road tests comparing the cooling efficiency of two different fan types (R.R. vs EFC). | ||
| View original record | To EFC. from Hs/Rm. Hs/Rml/LG18. 2. 25. X1017 FAN TESTS. X1017 We have carried out road tests with the two types of EAC. Fan which we handed to you yesterday. The method of conducting the tests was… | ||
| scan0052 | Comparison of cooling fan efficiency and suggestions for further road testing. | ||
| View original record | CONTD :- -2- We have previously discovered that the 6-bladed RR. fan is responsible for improving the cooling capacity of the system by 30%. If we take the better of these two fans to be of equal… | ||
| scan0053 | List of Goshawk size fans tested, detailing modifications and tip diameters. | ||
| View original record | X1017 24.2.25. X.1017. LIST OF GOSHAWK SIZE FANS. Nos. & Descriptions of fans tested. Fan tip dia. 4. Hispano fan. 17½" 7. Goshawk. 18" 21. Wide bladed fan. 18" 22. No. 21 with 1" cut off leading… | ||
| scan0054 | Comparative test results of two engine fans, discussing differences in thrust and power consumption. | ||
| View original record | To Hs. from EFC. c/c Hs/Rm X.1017. FAN TESTS. With reference to your Hs/Rm1/LG18.2.25 and Hs/Rm2/LG18.2.25, we have made comparative tests of the two fans handed to us in condition as received. In the… | ||
| scan0055 | Numerical comparison of thrusts and power requirements for different fans at various speeds. | ||
| View original record | -2- Contd. To give the actual numerical comparison we will quote figures obtained at the higher of the two speeds suggested by you, viz. 1445 r.p.m. First, for the two fans compared on the road, the… | ||
| scan0056 | Report comparing the performance, cooling effect, and power consumption of a standard versus an experimental 20 HP fan. | ||
| View original record | -3- Contd. Please refer to our "Further Note" on p.3. of EFCL/T19.2.25 - a report with reference to 20 HP. fans. From the results of driving two fans (a) At what we call corresponding speeds (i.e.… | ||
| scan0057 | Comparative cooling effects and power consumption of different fan designs, along with fan diameter constraints for a new chassis. | ||
| View original record | -4- Contd. more nearly to the case (b) above for the good fan, in which case we might get, even with this experimental fan, a greater cooling effect at moderate speeds, a still greater cooling effect… | ||
| scan0058 | Fitting two tested 20 HP fans to a chassis. | ||
| View original record | X1017 To RHC. from EFC. c. Mr. Warwick. EFC1/T27.2.25. X.1017. 20 HP. FANS. Further to our EFC2/T4.2.25, we now hand to you the fan referred to, which has now been returned from the D.O.. this being… | ||
| scan0059 | The return of Fan Blades for a 20HP Chassis and the issue of corresponding drawings. | ||
| View original record | TO EFC. *4237 X1017 DEPT AT CREWE BY/SS6/DB.27.2.25. Re 20HP Chassis - Fan - X.4237. We returned the Fan Blades etc. supplied by you yesterday, and have today issued to RHC drawings E.53552/3 as a… | ||
| scan0060 | Graph plotting Fan Speed and Power Required against the Axial Thrust for a standard (3A) and an experimental (10A) fan type. | ||
| View original record | 3A. STD. TYPE EAC. 10A. EXPL. TYPE EAC. FAN SPEED (R.P.M.) MOTOR OR ENGINE POWER REQUIRED TO DRIVE FAN (H.P.) SPEED POWER AXIAL THRUST OF FAN IN LBS WEIGHT C.A.P. 3A 10A 1175 1445 | ||
| scan0061 | List describing various fan designs and modifications tested, with their corresponding diameters. | ||
| View original record | 19.3.25. NUMBER OF DESCRIPTION OF FANS TESTED. FAN TIP DIA. 10. Fan as originally made (23" dia.) (with small negative angle). 23" 11. Leading edge given slight positive angle. 23" 12. No.2 fan as… | ||
| scan0062 | Bench experiments conducted on EAC radiator fans. | ||
| View original record | R.R. 403A (40 H) (SL 42 12-7-23). J.H., D. X1017 EXPERIMENTAL REPORT. Expl. No. 17. REF: EFC3/T20.3.25. To R. from EFC. S E C R E T. c. CJ. Wor. --------- c. Rg. Da. E. A. C. c. E. By. c. Hs. BENCH… | ||
| scan0063 | The performance and design of various engine fans based on test results. | ||
| View original record | R.R. 499a (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Contd. -2- Expl. No. REF: EFCX/120.3.25. and power to drive on a fan speed base. A descriptive schedule of the various fans, the results… | ||
| scan0064 | Fan modifications and the resulting power-thrust curves. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. -3- EXPERIMENTAL REPORT. Contd. Expl. No. REF: EFC3/T20.3.25. Subsequently we have experimented with another fan with which we started with the blades very… | ||
| scan0065 | Fan blade curvature, performance, and selecting an optimal fan speed ratio. | ||
| View original record | R.R. 493A (50B) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Contd. -4- Expl. No. REF:EFCG/TBO 3.25. Our experiments now show that the speed-thrust curve may be lowered by increasing the trailing… | ||
| scan0066 | Continuation discussing engine cooling fan and belt drive ratios. | ||
| View original record | R.R. 493A (50n) (D.B. 175 25-9-24) J.H.D. -5- EXPERIMENTAL REPORT. Contd. Expl. No. REF EFC3/T20.3.25. approximately constant, as this thrust is increased, and is found to be .85 only for fan 18, as… | ||
| scan0067 | Suggesting a new standard for a fan based on drive ratio improvements. | ||
| View original record | R.R. 493A (50B) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -6- Expl. No. ______ Contd. REF EFC3/T20.______ and being a rather higher speed fan than 18 is suited to the present drive ratio of 1.2.… | ||
| scan0068 | Graph comparing the speed, power, and axial thrust for various standard and experimental fan designs. | ||
| View original record | NOS. & DESCRIPTIONS OF FANS Fan tip diameter. (1) Std. 40/50 6-bladed fan. 22" (3) Original RAC. 4-bladed fan. 23" (9) Better of the two fans made as far as possible to recommendations by Prof. Watts.… | ||
| scan0069 | Graph comparing thrust and power consumption against fan speed for various fan designs. | ||
| View original record | MOTOR OR ENGINE POWER REQUIRED TO DRIVE FAN (HP) AXIAL THRUST OF FAN IN LBS WEIGHT FAN SPEED (RPM) THRUST POWER NOE. & DESCRIPTIONS OF FANS. Fan tip diameter. (1) Std. 40/50 6-bladed fan. 22" (3)… | ||
| scan0070 | Graph comparing the performance of a standard 40/50 fan against an experimental E.A.C. fan. | ||
| View original record | 1. STD. 40/50 6 BLADED FAN (DRIVEN WITH 1.20 RATIO) 15. E.A.C. FAN INSTRD FOR INITIAL PRODUCTION (DRIVEN WITH 1.14 RATIO) THRUST POWER POWER TO DRIVE FAN (H.P.) THRUST (lbs. wt.) ENGINE SPEED (rpm)… | ||
| scan0071 | Graph comparing the speed, power, and axial thrust of a Standard Type 3A and an Experimental Type 10A EAC fan. | ||
| View original record | 3A STD. TYPE EAC. 10A EXPL. TYPE EAC. FAN SPEED (RPM) MOTOR OR ENGINE POWER REQUIRED TO DRIVE FAN (HP) AXIAL THRUST OF FAN IN LBS WEIGHT SPEED POWER 10A 3A 1445 Legend: • 10 x 15B □ 15C ⊗ 16B ⊞ 16Z ⊕… | ||
| scan0072 | Table of ratios for 20 HP fans, showing fan speeds corresponding to various thrusts. | ||
| View original record | Ratios FAN SPEEDS CORRESPONDING TO VARIOUS THRUSTS OF VARIOUS FANS. 20 HP. THRUST (lbs). | Stand/rd | 3 | 9 | 10 | 14 | 18 ---|---|---|---|---|---|--- 1 | 1.00 | 1.03 | 1.02 | .935 | .820 | .926 2 | "… | ||
| scan0073 | Data table of fan speeds corresponding to various thrusts for different fan models. | ||
| View original record | FAN SPEEDS CORRESPONDING TO VARIOUS THRUSTS OF VARIOUS FANS. ~~No. E.A.C.~~ | THRUST (lbs.) | Standard | 3 | 9 | 10 | 14 | 18 | |---------------|----------|------|------|------|------|------| | 1 |… | ||
| scan0074 | Development and testing of different engine fan models and their respective drive ratios. | ||
| View original record | To EY. from EFC. c. Hs. G. Ey/Shn. Y1017 EFC4/T20.3.25. X.1017. RE FANS. Please see our report EFC3/T20.3.25. Recently we handed to your Mr. Shelton a fan (No.15) to enable the production instructions… | ||
| scan0075 | Table of experimental fan results, comparing thrust, power, and thrust/power ratios at two different speeds. | ||
| View original record | 10a. 3.1 .45 6.89 9.0 1.42 6.33 E.A.C. EXPERIMENTAL FAN RESULTS. NO. Fan. Speed 1200. Thrust. (lbs) Power. (H.P.) Thrust/power. Speed 2000. Thrust. (lbs) Power. (H.P.) Thrust/power 10b. E.A.C Fan off… | ||
| scan0076 | Performance data sheet comparing test results for Fan No. 1 and Fan No. 15. | ||
| View original record | X.1017. FAN TESTS. FAN No.1. Fan speed (r.p.m.) | Thrust (lbs) | Power (HP.) | Engine speed (r.p.m.) 200 | 0 | .0158 | 167 400 | .405 | .0617 | 334 600 | 1.000 | .139 | 500 800 | 1.906 | .267 | 667… | ||
| scan0077 | Technical memorandum discussing the driving radius of a V-belt for the engine fan and experimental belt ratios. | ||
| View original record | X1017 EFC. Hs. BY/SS BY18/H. 23.3.25. FAN. Referring to EFC4/T. 20.3.25. we have always reckoned that the driving radius of a "V" belt is approximately 1/3 of the vertical distance the belt is in… | ||
| scan0078 | And finalising new experimental fan ratios. | ||
| View original record | To BY. from EFC. c. BY/SS. c. Hs. X1017 EFC3/T24.3.25. X.1017. RE EAC. FANS. V8220 We are in receipt of your BY18/H23.3.25. With reference to the originally suggested ratios of 1.05 to 1, 1.12 to 1,… | ||
| scan0079 | The repetition of fan tests comparing a modified EFC fan against the standard R-R fan. | ||
| View original record | X1017 To Hs. from Rm. Hs/Rml/LG25.3.25. REPETITION OF FAN TESTS. The repetition of the fan tests carried out with the modified EFC. fan and standard R-R fan show that the latter still produces the… | ||
| scan0080 | Design considerations for radiator fans to improve efficiency and reliability. | ||
| View original record | TO EFC. } FROM R. X107 Copy to CJ. " - RG. " - DA. " - HS. " - BY. re. RADIATOR FANS. X1017 EFC's work on these should be most valuable. We save power, belts etc, and make the action of the fan more… | ||
| scan0081 | Request to produce experimental fan sets with higher speed ratios. | ||
| View original record | To RHC. c. to EFC. X1017 By/SS4/DB2.4.25 EAC.VI - FAN - HIGHER SPEED RATIOS. X.8220 X.1017. With reference to Mr.Clarke's request for further speed ratios in connection with the EAC. fan, please… | ||
| scan0082 | Requesting the production of one set of fan parts, a blade and a flange, based on provided blueprints. | ||
| View original record | X1017 To RHC. c. to EFC. By/SS3/DB24.4.25. Re EAC.VI - FAN - SEC.5220. X.8220 X.1017. Please receive herewith two blueprints of each of the following drawings, detailed from model No.18 supplied by… | ||
| scan0083 | Experimental variations for the Phantom radiator fan to improve power-thrust and cooling. | ||
| View original record | X1017. Hs/Rm. from EFC. EFC4/AD18.7.30. X7220 X.1017. PHANTOM RADIATOR FAN. With reference to your enquiry re fan, it will be seen from our EFC3/T20.3.25 that an experimental fan (No.15) was handed to… | ||
| scan0084 | Instruction from Mr. Royce to test if a three-bladed radiator fan performs as well as a six-bladed one for the 20 HP chassis. | ||
| View original record | R.R. 235 B (200.T) (S.F. 103. 25-10-18) G. 2241. C.O.P.P X.3438 C To EH. from R. c. to CJ. c.to Bn. c. to Da. c.to EFC. --------------- EB8/G.5/6/19. X.3438 - RADIATOR FANS. X.3576 In accordance with… | ||
| scan0085 | Extract detailing the assembly of parts for chassis 1.E.X. | ||
| View original record | X.3438 Extract from RHC1/LG30.6.19. RE CHASSIS 1.E.X. The above chassis is now complete and it has been assembled as follows:- "E" SECTION. to S.S. No. REMARKS. X.3474. Wire Fittings. E.17146 X.3438.… | ||
| scan0086 | Test results comparing 3 and 6 blade fans, measuring water and air temperatures under various speed and road conditions. | ||
| View original record | ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Mr. Hewson Date: 14/1/1919 Reference Number: X3438 3 Blade Fan. Icknield Hield 2 tests Climbing MPH | Water | Air Standing | 64° | 68° | 5 1/2° 20 | 65 | 68 1/2 |… | ||
| scan0087 | Performance test data from a hill climb at Tucknall Hill, comparing different fan blade configurations. | ||
| View original record | R.R. 26 10M Bks.) (SE 591 13-3-18). M.P. 189358 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Mr Hives 4/7/19 1919 Order No. Customer's No. 603 blade for test Climbing MPH Water Air Standing 64° 5½° 20 65° 30… | ||
| scan0088 | Tests on a 40/50 chassis comparing a fan fitted with 3 blades against the standard 6-bladed fan. | ||
| View original record | X3438 R R. 235 A (100 T) (S.P. 575. 16-4-19) (j. 2354 To R. from EH. Copy to CJ. " " BN. " " E. " " DA. ------------------------- X.3438. TESTS ON 40/50 CHASSIS COMPARING FAN FITTED WITH X.3576. 3… | ||
| scan0089 | Test results for maximum temperatures during hill climb and level running with 3-bladed and 6-bladed fans. | ||
| View original record | R R 235 B (200 T) (S.F. 674 22-5-19) G. 2376. EH2/LG26.11.19. TEST 3. Contd. Hill Climb. Maximum temp: with 3-bladed fan 71°C. " " 6-bladed fan 68°C. Level running 30 M.P.H. Maximum temp: with… | ||
| scan0090 | Required number of fan blades and a request to remove three from a trials car. | ||
| View original record | To EH. from R. Copy to CJ. " " DN. K 34 38 R2/G1/12/19. RE THREE-BLADED FAN. Thank you for your memo with reference to the three-bladed fan. It would appear that three blades are all that are… | ||
| scan0091 | Extract from a report on vehicle 2.EX detailing dynamo and fan belt adjustments and battery maintenance. | ||
| View original record | X.3438. Extract from REPORT ON 2.EX X.3772. X.3438. Dynamo and fan belts both shortened (spring loaded, adjustment very noisy again after shortening dynamo belt.) X.664. Distilled water pint in… | ||
| scan0092 | Complaint regarding unsatisfactory Whittle belts causing noise and clearance issues on the dynamo and fan drives. | ||
| View original record | DX. C. to MB. (c. EFC) X.3727 (crossed out) X 576 (crossed out) X.3438 EP2/F6/9.9.20. AT (2 A.T. RECEIVED RE. UNSATISFACTORY WHITTLE BELTS. X.3438 The complaint of these belts being unsatisfactory as… | ||
| scan0093 | Test report on special fan belts, questioning whether to revert to the original Whittle belt due to potential scrap costs of £1000. | ||
| View original record | R.R. 285a (100 T) S.H. 89. 22-7-20) G. 2769 X.3438 Hs. from BY. c. EFC. BY20-P25.10.20. X.3438 FAN. X.3566 I attach herewith test department report on the special fan belts. I have enquired into this… | ||
| scan0094 | The unsatisfactory performance of fan belts composed of leather and grey fibre links, noting elongation, breakage and vibration issues. | ||
| View original record | c o p y. BY. C. WD. X.3566 X.3438 EP/Mx7/F20.10.20. The fan belts at present fitted to chassis, which have links composed of leather and grey fibre, are very unsatisfactory, the hole in the fibre… | ||
| scan0095 | Condemning the use of Whittle type fan belts with fibre inserts due to noise and risk of breakage. | ||
| View original record | X3438 By. from Hs. c. to Wd. c. to EP. X.3566. RE FAN BELTS WITH FIBRE INSERTS. X.3438. We agree with the Test Department that the Whittle type belts with the fibre links should not be used on our… | ||
| scan0096 | Replacing problematic fibre-wearing link belts with Whittle belts for fan and dynamo drives due to vibration issues. | ||
| View original record | X3438 Mr Shelton from BY. C. HPI. C. Wd. C. Ms. C. Hs. C. EP. C. EPC. OCT 29 C RECEIVED BY104P20.10.20. X.3438 FAN DRIVE. RE BELTS. X.3566. Please note that the Experimental and Test Depts, are… | ||
| scan0097 | Comparison of different belts and arranging to sell condemned stock. | ||
| View original record | BY10-P29.10.20. contd. - 2 - approximately half way between the original standard Whittle and the half link Whittle, will be the best compromise to use. Hs, has a sample of this belt under test. Will… | ||
| scan0098 | Suggestion to test a fan pulley made from a new 'specialalloy' as a potential replacement for the current malleable cast iron version. | ||
| View original record | X3438 Mr. Warwick (Exp. Dept). from By. c. EFC. ByS/P18.1.21. X.4325. CHASSIS - FAN DRIVE. X3438 RE FAN PULLEY. We would like to suggest that you try, one of the above pulleys in Mr. Hall's… | ||
| scan0099 | Schedule of performance and comparison tests for radiators and cooling fans to be conducted at Brooklands. | ||
| View original record | TESTS TO BE CARRIED OUT AT BROOKLANDS. (1) Repeat Comparisons between 58 mm & 70 mm Harrison matrices. Tests to be 30 M.P.H. full throttle 45 M.P.H. " " 60 M.P.H. light Maximum speed full throttle.… | ||
| scan0100 | Test schedule for radiator and component testing over two days. | ||
| View original record | Thursday :- (1) Test 70 MM rad. ✓ 1 hour (2) Change rad & refit Georges rad. ✓ 2 hours (3) Lunch ✓ 1 hour (4) Repeat trend 40 MPH 3rd ten ✓ 1/2 hour (5) Fan tests 1 1/2 hours (6) Bonnet temp tests 1… | ||
| scan0101 | List of tests comparing bonnet temperatures, radiator matrix area, and induction pipes at various speeds. | ||
| View original record | -2- (5) Compare bonnet temperatures at 40,60 & 80 M.P.H. full throttle with (a) shutter control of water temperature. (b) thermostatic bypass of water temperature. (A handwritten word 'control' is… | ||
| scan0102 | Improving the 40/50 HP armoured car's cooling by experimenting with an aluminium radiator cowl. | ||
| View original record | X8438 To Hs. from Da. Da3/G23. 8. 21. RE. 40/50 H.P. COOLING. X. 4195 X. 3456 X. 3438 The armoured car people some time ago found trouble with the cooling of the standard car on the sand test, and… | ||
| scan0103 | Fan blades breaking in service and proposing a reinforcement piece as a solution. | ||
| View original record | H.R. page (to T.) (S.H. 988. 22/2/21.) Bm. 298578. X3438 OCT 20 RECEIVED BY4-P20.10.21. Hs. from BY. c. EP. c. Hm. c. Mr Shelton. We have quite a number of fan blades breaking in service. I cannot… | ||
| scan0104 | Cover note for a standardization sheet regarding an experiment on a reinforcing plate for a fan blade. | ||
| View original record | X3438 EY. from Hs. c. to Rg. c. to Dn. c. to EP. c. to FH. c. to AWT. for R.R. Inc. Ha/LG2.11.31. X.3438 - REINFORCING PLATE TO FAN BLADE. Please find attached copy of standardization sheet in… | ||
| scan0105 | Request for costing on a standardisation sheet for a reinforcing plate on a fan blade. | ||
| View original record | D/Rd. from Hs. X3438 Hs/LG2.11.21. X.3438 - REINFORCING PLATE ON FAN BLADE. Please find attached two copies of standardisation sheet in connection with the above experiment. Will you kindly fill in… | ||
| scan0106 | Cause and liability for three broken fan blades and a damaged radiator. | ||
| View original record | (Stamped and strikethrough: TEST DEPT from EP. 19. to BY.) (Handwritten and underlined: X3438) (Handwritten: F.R) (Stamped: F.R.) (Typewritten: EP/Thn4/H15.11.21.) Re. Broken Fan Blades. (Handwritten:… | ||
| scan0107 | Missing standardisation sheets and scheduling a visit to Derby for Goshawk 11 tests. | ||
| View original record | S/W. Hs. X3438 PN10/DN20.12.21. STANDARDISATION SHEETS. X.4387 - Pilot Jet. X.3438 - Reinforcing plate to fan blade. X.4219 X.4426 In reply to your Hs5/LG13.12.21, I have neither of these sheets. I am… | ||
| scan0108 | Standardisation sheet regarding the introduction of additional parts to strengthen the Fan Blade. | ||
| View original record | X. 3438 Extract from Rd3/139A/M9.1.22. STANDARDISATION SHEET NOS. X. 3438 & X.4387 X.3438 - This sheet covers the introduction of additional parts for the purpose of strengthening up the Fan Blade.… | ||
| scan0109 | Standardisation of a reinforcing plate for fan blades. | ||
| View original record | R R 765 (5 H) (S H 268, 29-9-20) G 2354 V3438 COMPLETED 8.2.22 STANDARDISATION of CHASSIS PARTS. Description of Parts. Reinforcing Plate to Fan Blade. Origin. To avoid fan blades breaking.… | ||
| scan0110 | Costing document for fitting reinforcing plates to an existing fan on a 40/50 chassis. | ||
| View original record | COPY. H.R. 255a (100 T) (S.H. 768, 10-12-20) G. 2948 HY. from Rd. C. to HS. Rd/HL/57a/A30.11.21 40/50 CHASSIS. HY/Mtng/H17.11.21 The cost without profit for fitting reinforcing plates to existing fan,… | ||
| scan0111 | Adopting the half-link type of Whittle Belt for the fan and dynamo drive on the 40/50 chassis to eliminate a 'drumming' noise. | ||
| View original record | Y3438 Md. from BY. c. Mr Shelton. c. Hs. c. HP. c. OPL. c. D/BP. BY6-P21.7.22. 40/50 CHASSIS. FAN. X3438 X3735 As a result of a series of tests which have been tried, it has been decided that we shall… | ||
| scan0112 | Radiator and fan specifications for cars intended for use in Switzerland and India. | ||
| View original record | Y3438 To Hs. from R. c. to CJ. c. to BJ. c. to BY. R2/M9.10.22. RE. SWITZERLAND AND INDIA X.3456 X.3438 X.790 As far as I am aware the 3" deeper (taller) radiator would be much overdoing it, and would… | ||
| scan0113 | Specifications for the 40/50 radiator and fan, including water capacity, pulley diameters, and a table of fan speeds. | ||
| View original record | X3438 29.9.23. 40/50 - RADIATOR - AND FAN. X3456 X3438 Capacity of 40/50 HP. water system -- 7 galls. 3 1/4 pts. Dia. of bottom of crankshaft pulley - 4.837". Dia. of bottom of Fan pulley-------… | ||
| scan0114 | Confirming Mr. Royce's agreement to a one-piece forging for the fan drive pivot and spindle. | ||
| View original record | To BY. from E. c. to Hs. X3488 E3/M16.10.23. Lec.1753. X.3433 PIVOT & SPINDLE FOR FAN DRIVE. X.4237 In reply to your memo. BY2/20.9.23., recently received, please note Mr. Royce agrees to adopting the… | ||
| scan0115 | Data sheet of test results showing the temperature of air at the rear of a fan in relation to water temperature at speeds of 25 and 45 m.p.h. | ||
| View original record | Handwritten notes: X3438 X3456 (crossed out) X.3438 See X819 Typed notes: (copied. - 15.10.23. 30.11.23.) TEMPERATURE OF AIR AT REAR OF FAN IN RELATION TO WATER TEMPERATURE. Speed 25 m.p.h. Centigrade… | ||
| scan0116 | Suggestion to improve cooling on the 40/50 HP chassis by removing fan blades. | ||
| View original record | Y3438 Hs. BY20/H. 26. 6. 24. 40/50 HP. CHASSIS. FAN DRIVE. In a recent memo from EP. he points out that in Switzerland on more than one occasion they have removed alternate blades of the fan, leaving… | ||
| scan0117 | 40/50 HP chassis troubles related to belt drives. | ||
| View original record | BY [REDACTED] c. Hs. c. Wor. X3938 EP7/H1.7.24. re. 40/50 HP. Chassis Troubles - Belt Drives. Thanks for your memo BY23/H27.6.24, which certainly shows that the points referred to in my EP5/H20.6.24.… | ||
| scan0118 | Comparing the efficiency of a 6-bladed fan versus a 3-bladed fan. | ||
| View original record | R.R. 493 (40 H) (SL 42 12-7-23). J.H., D. EXPERIMENTAL REPORT. X3738 COPIES TO: R.CJ. ES. WOR. By. E. Da EP. PN. OY. ES Expl. No. X3738 X.9220 REF. Hs6/LGS.7.24. OBJECT OF TEST. To prove whether… | ||
| scan0119 | Fan tests for car 98-NK, comparing a three-bladed fan to a standard fan. | ||
| View original record | COPY. Chateauroux. June 29th. 1924. FAN TESTS ON 98-NK. Condition of tests. Full throttle, braking down to required speed. All tests taken under exactly similar conditions as regards roads and… | ||
| scan0120 | Report comparing the engine temperature performance of a three-bladed fan versus a standard fan on vehicle 35-PK. | ||
| View original record | COPY! Chateauroux, June 29th. 1924. FAN TESTS ON 35-PK. Conditions of tests. Full throttle, braking down to required speed. All tests taken under exactly similar conditions as regards roads and… | ||
| scan0121 | Engine cooling tests for a 40/50 HP engine, comparing the performance of six and three-bladed fans. | ||
| View original record | 8.7.24. REPORT ON COOLING WITH STANDARD 40/50 HP. AND THREE BLADED FAN. Tests carried out on 49-GB. Total weight of car with full tank and 2 up - 2 tons. 10 cwts. 2 qrs. Tests carried out on Swinscoe… | ||
| scan0122 | Temperature test results comparing a six-bladed fan and a three-bladed fan with shutters open and closed. | ||
| View original record | 8.7.24. Tests made in 3rd. Gear. - speed 42 m.p.h. SIX BLADED FAN. Shutters open - av. highest temp. top 96.1°C. bottom 85.8°C. Shutters closed - " " top 96.9°C. bottom 86.7°C. THREE BLADED FAN.… | ||
| scan0123 | Improvements to car radiators, specifically matrix size and fan design for 20 HP and 40/50 HP models. | ||
| View original record | To RG. HS. } FROM R. c. to CJ. BJ. DA. E. BY. EP. S E C R E T. H1/M29.8.24. RE. VISIT OF RG & HS. TO WW. ON 27th. & 28th. INST. X.766 X.3438 RE. CAR RADIATORS. X.3456 X.4214 X.9250 X.4240 From figures… | ||
| scan0124 | Continued discussion on engine overheating, fan efficiency, and cooling system limitations. | ||
| View original record | Contd :- -2- that not one car in 500 is satisfactory under full throttle, low speed, and hot weather, and the larger the engine the greater the deficit. Careful comparison will be made: reports are… | ||
| scan0125 | Letter to Messrs. Ogilvie & Partners requesting recommendations for a more efficient engine cooling fan for the 40/50 HP Chassis. | ||
| View original record | Copy to CJ. " " Hs. " " Mailing Dept. X3438 Rgl/W 9 September 1924. Dr. H. C. Watts, Messrs. Ogilvie & Partners, Ltd., 104, High Holborn, W.C.1. Dear Sir, We are looking into the question of the… | ||
| scan0126 | Tests conducted on 40/50 HP radiators to resolve boiling issues and compare them to Hispano models. | ||
| View original record | R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. Y3438 EXPERIMENTAL REPORT. Expl. No. 3456 REF: Hs1/LG11.9.24. To R. from Hs. c. to CJ. BJ. c. to E. RC. c. to DA. HY. c. to Wor. 40/50 HP. RADIATORS. Y3406… | ||
| scan0127 | Engine fan efficiency and fan belt performance at various speeds. | ||
| View original record | R.R. 403A (40 H) (SL 42 12-7-23). J.H., D. -2- EXPERIMENTAL REPORT. Expl. No. 3456 REF: Hsl/LG11.9.24 dependent on our fan to maintain our radiator efficiency. In a test on a certain hill comparing… | ||
| scan0128 | Improving engine cooling through fan belt and bonnet ventilation enhancements. | ||
| View original record | R.R. 403A (40 H) (SL 42 12-7-23). J.H. D. -3- EXPERIMENTAL REPORT. Expl. No. REF: Hs1/LG11.9.24. driver has tightened the fan belt in the morning, if he runs the car at high speeds for any length of… | ||
| scan0129 | Engine cooling improvements and tests related to water boiling. | ||
| View original record | R.R. 403A (40 H) (SL 42 12-7-23). J.H., D. -4- EXPERIMENTAL REPORT. Expl. No. REF: Hsl/LC11.9.24. The tests are being continued. As far as we can see there are three ways in which improvement can be… | ||
| scan0130 | Statement on the acceptable duration for a 20 HP or 40/50 HP car's engine to boil. | ||
| View original record | contd :- -5- Hsl/LG11.9.24. -------------- that it is not serious if the car boils because there is a limit to which this can go on - there is no possible means of his knowing when he has reached that… | ||
| scan0131 | Bench experiments on the power required to drive a 40/50 radiator fan with six and three blades. | ||
| View original record | X.3438 To R. & E. from EFC. c. GJ. & PN. c. EY. DA. EP. c. RG. WDY. EFC/T18.9.24. X1017 BENCH EXPERIMENTS ON 40/50 STANDARD SIX-BLADED RADIATOR FAN AND ON THE SAME FAN WITH THREE BLADES REMOVED. X3438… | ||
| scan0132 | Fan power speed curves and issues with driving belt slippage at high speeds. | ||
| View original record | Contd. -2- EFCl/T18.9.34. and the result for ordinary loadings of the motor is reasonably accurate). In determining the fan power speed curves, a copy of which is attached, motor speeds rising by… | ||
| scan0133 | Power tests for six-blade and three-blade fans, discussing methodology and providing power-speed law formulas. | ||
| View original record | EFCl/T18.9.24. -3- Contd. As stated, the results of these power tests are herewith exhibited in the form of curves in which the speed base has been initially set out in driving motor r.p.m. It was… | ||
| scan0134 | Report page detailing experiments on fan power, belt slip, and air stream velocity. | ||
| View original record | Contd. -4- EFCl/T18.9.24. In the ideal action of the fan, the power is proportional to the cube of the speed. Here it is proportional approximately respectively to the 2.8th and 2.7th powers which… | ||
| scan0135 | Methodology for measuring fan thrust and air velocity using a spring balance and revolving turntable. | ||
| View original record | EFC1/T18.9.24. -5- Contd. In the selected position, the indications of the instrument, duly corrected according to a correction curve supplied with the instrument, are exhibited as curves herewith of… | ||
| scan0136 | Graph showing power absorbed by a 40/50 standard fan at various speeds, comparing three and six-bladed fans. | ||
| View original record | POWER ABSORBED BY 40/50 STANDARD FAN AT VARIOUS SPEEDS APPROX LAW FOR SIX BLADED FAN. H = .01910 S^2.808 x 10^-6 APPROX LAW FOR THREE BLADED FAN H = .02562 S^2.692 x 10^-6 WHERE H = POWER DELIVERED BY… | ||
| scan0137 | Graph plotting air velocity against fan speed for a 40/50 standard fan, comparing six-bladed and three-bladed versions. | ||
| View original record | VELOCITY OF AIR STREAM OF 40/50 STANDARD FAN AT VARIOUS SPEEDS AIR VELOCITY (FT/MIN) FAN SPEED (RPM) SIX BLADED FAN THREE BLADED FAN Y-AXIS: 0, 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800, 2000,… | ||
| scan0138 | Attaching a report from Dr. Watts of Ogilvie & Partners regarding the fan for the 40/50 HP chassis. | ||
| View original record | X3438 R. By c. CJ. c. BJ. c. Wor. c. SFP. c. Hs. Rg1/W24.9.24. X.1017. FAN FOR 40/50 H.P. CHASSIS. X 3488 I attach hereto copy of a report received from Dr. Watts of Ogilvie & Partners, with regard to… | ||
| scan0139 | Letter from Ogilvie & Partners Ltd. detailing improvements for a 40-50 HP chassis fan. | ||
| View original record | COPY. OGILVIE & PARTNERS LTD. 104, High Holborn, London, W.C.1. 19th Sept. 1924. A.J. Rowledge Esq., Messrs. Rolls-Royce Ltd., Nightingale Rd., Derby. Dear Rowledge, I have considered the fan for your… | ||
| scan0140 | Analysis of fan power in relation to speed, exploring blade design solutions like variable pitch and twisting. | ||
| View original record | -2- Contd. (2) Rate of increase of power with speed. The speed of the car and the speed of the fan increase at the same rate. It therefore follows that the power absorbed by the fan will increase as… | ||
| scan0141 | Conclusion of a letter discussing the design limitations of a wooden screw. | ||
| View original record | Contd. -3- I regret that I cannot make any more definite recommendations. I could design a wooden screw which would within limits tend to increase its efficiency as the belt slipped but I should not… | ||
| scan0142 | Bench experiments on the thrust of various radiator fans at different speeds. | ||
| View original record | X3438 To R. & E. from EFC. EFC2/T19.11.24. c. CJ. & PN. c. EY. EP. Mx. c. Wor. RG. Ds. c. Hs. X.1017. BENCH EXPERIMENTS ON VARIOUS RADIATOR FANS. X3438 Thrust of fan at various speeds. Further to our… | ||
| scan0143 | Continued technical discussion on ventilator fan tests, thrust, and cooling efficiency. | ||
| View original record | Contd. -2- EFC2/T19.11.24. A curve of a small ventilator fan is also given. It is understood that there will be available for the tests a further 40/50 fan with hanging back blades. There is further a… | ||
| scan0144 | Analysis of radiator and fan efficiencies by combining thrust and power speed curves. | ||
| View original record | Contd. -3- EFC2/T19.11.24. different radiators and fans, and in particular with fans of varying tip diameters. On these lines therefore the thrust of the fan may be taken as our basic quantity. Curves… | ||
| scan0145 | Comparison of the efficiency between a six-bladed fan and a three-bladed fan, referencing horsepower curves. | ||
| View original record | Contd. -4- EFC2/T19.11.24. connecting link. This necessitates drawing curves of motor or engine power required to drive on a fan speed base instead of on a motor speed or chassis engine speed base.… | ||
| scan0146 | Continued report discussing fan efficiency, thrust, and power curves based on experimental data. | ||
| View original record | Contd. -5- EFC2/T19.11.24. is not of major importance as it would be in the case of a water pump, where the power to drive might be taken as negligible. Instead we may consider that in this case the… | ||
| scan0147 | Additional notes comparing the performance and efficiency of six-bladed and three-bladed 40/50 fans. | ||
| View original record | 20.11.24. 46- Contd. ADDITIONAL NOTES. In the second paragraph on p.4 of the report, it was stated that the result of the comparison (of the six-bladed and three-bladed 40/50 fan) showed that the… | ||
| scan0148 | Comparison of the performance of six-blader and three-blader fans, detailing experimental limitations. | ||
| View original record | -7- Contd. There is an impression that although the six-blader fan is better at low engine speeds, the three-blader fan is better at high engine speeds. Our experiments do not show any evidence of… | ||
| scan0149 | Graph showing thrust-fan speed curves for seven different types of fans, plus a ventilator fan. | ||
| View original record | B. THRUST-FAN SPEED CURVES OF VARIOUS FANS (SET B) 1. STD 40/50 6 BLADE FAN. (22" DIA) 2. STD 40/50 FAN WITH 3 BLADES REMOVED. 3. E.A.C. 4 BLADED FAN. (23" DIA) 4. HISPANO-SUIZA FAN. (17 1/2" DIA) 5.… | ||
| scan0150 | Graph of HP vs. Fan Speed for a standard 6-blade fan and a modified 3-blade fan. | ||
| View original record | C. HP - FAN SPEED CURVES OF VARIOUS FANS. 1. STD 40/50 6 BLADE FAN: 2. STD 40/50 FAN WITH 3 BLADES REMOVED. H.P. FAN SPEED. (R.P.M.) NEW 30-11-34 E.F.C / 24 | ||
| scan0151 | Graph showing the power absorbed in horsepower versus thrust in pounds for a standard 40/50 6-bladed fan and a 3-bladed version. | ||
| View original record | POWER ABSORBED. BY VARIOUS FANS AT VARIOUS THRUSTS. 1. STD 40/50 6 BLADED FAN. 2. - DITTO - WITH 3 BLADES REMOVED. H.P. THRUST IN LBS. D. 1 2 H.E.W. 20-11-24 E.F.C. 20/11/24 | ||
| scan0152 | Further bench experiments conducted on radiator fans, outlining a new apparatus arrangement. | ||
| View original record | To R. & E. from EFC. c. CJ. Da. Rg. c. Wor. Ry. X438 EFC1/T17.12.24. X.1017. FURTHER BENCH EXPERIMENTS ON RADIATOR FANS. X3438 Instead of continuing these experiments in the manner described in the… | ||
| scan0153 | Report comparing the performance and efficiency of various fans using curves representing power, thrust, and speed. | ||
| View original record | 2 Contd. EFCL/T17.12.24. In the first instance the various fans referred to in our previous report have been taken in succession through this test (See attached list of fans and ref. Nos.). The curves… | ||
| scan0154 | The performance of a four-bladed fan and plans for further modifications and experiments. | ||
| View original record | Contd. -3- EFC1/T17.12.24. have a four-bladed fan made with an EAC. hub, on which the blades were similarly shaped, but larger, up to the full dia. (23") of the ordinary EAC. fan. It was immediately… | ||
| scan0155 | List of fans tested, detailing their type and fan tip diameter. | ||
| View original record | X 3438 E7C / T 17 12 24 16.12.24. FAN TESTS. Nos. & Descriptions of fans tested. Fan tip dia. 1. Standard 40/50 six-bladed fan. 22" 2. Standard 40/50 six-bladed fan, with three blades removed. 22" 3.… | ||
| scan0156 | Graph comparing the speed, power required, and axial thrust for twelve different engine cooling fan designs. | ||
| View original record | Fan tip dia. 1. Standard 40/50 six-bladed fan. 22" 2. Standard 40/50 six-bladed fan with three blades removed. 22" 3. EAC. four-bladed fan. 23" 4. Hispano fan. 17½" 5. High speed 40/50 six-bladed fan.… | ||
| scan0157 | Graph comparing the thrust and slip performance of various engine fan designs against engine speed. | ||
| View original record | PERCENTAGE SLIP THRUST IN LBS. WEIGHT THRUST SLIP 40/50 ENGINE SPEED (R.P.M.) CHASSIS M.P.H. 15/52 AXLE. 33.5" DIA TYRE. F. Fan tip dia. 1. Standard 40/50 six-bladed fan. 22" 2. Standard 40/50… | ||
| scan0158 | Graph comparing the speed and power consumption of various fan designs against engine speed. | ||
| View original record | G FAN SPEED (R.P.M.) MOTOR OR ENGINE POWER REQUIRED TO DRIVE FAN (H.P.) SPEED POWER 40/50 ENGINE SPEED (R.P.M.) CHASSIS M.P.H. 15/52 AXLE. 33.5" TYRE DIA. Fan tip dia. 1. Standard 40/50 six-bladed… | ||
| scan0159 | Water boiling issues, comparing a new fan design, and the effectiveness of bonnet louvres versus shutters. | ||
| View original record | To Hs. & EFC. from R. c. to CJ. BJ. c. to E. RG. c. to Da. X-3458 R2/M31.12.24. X.40/50 WATER BOILING. X.1017. X.3438. X.786. EFC. has found a fan which promises to be better than our standard - i.e.… | ||
| scan0160 | Issues with a fan testing rig and proposing a chain drive modification to allow for more efficient testing of fan belts. | ||
| View original record | To RHC. from Hs/Rm. 43438 Hs/Rm1/LG3.3.25. FAN TESTING RIG. We have tried testing some fan belts on the new rig. We find that we cannot test 4 belts at once. The reason for this is that for any… | ||
| scan0161 | Instruction to test if a radiator fan with three blades performs as well as one with six on the 40/50 HP model. | ||
| View original record | X.3576 (X 4237) To EH. from R. c. t- CJ. c. to Bn. c. to Da. c. to EFC. E8/G.5.6.19. X.3438 - RADIATOR FANS. X.3438. X.3576. In accordance with Mr. Royce's instructions would you please make a test to… | ||
| scan0162 | 20 HP fan and fan pulley, referencing drawing No. Lec.1108. | ||
| View original record | To DA. from E. c. to CJ. c. to Bn. c. to EH. c. to EFC. X.3576 - RE 20 H.P. FAN AND FAN PULLEY. We send you herewith drawing No. Lec.1108 shewing the above. You will notice that the fan bracket is… | ||
| scan0163 | Cheaper-to-produce sheet metal fan design for the 20 HP chassis, referencing drawing LeC.1113. | ||
| View original record | To Da. from E. c. to CJ. c. to Bn. c. to EH. c. to EFC. E1/G26.7.19. RE 20 H.P. CHASSIS SHEET METAL FAN. X.3576. We send you herewith drawing LeC.1113 shewing the above. We think the sheet metal will… | ||
| scan0164 | Comparison test results for a 3-bladed fan versus a standard 6-bladed fan on a 40/50 chassis. | ||
| View original record | X.3976 H.R. 253 x 100(?) (S.T. 575. 16-4-19) C. 2354. To R. from EH. Copy to CJ. " " BN. " " E. " " DA. EH2/LG26.11.19. X.3438. TESTS ON 40/50 CHASSIS COMPARING FAN FITTED WITH X.3576. 3 BLADES WITH… | ||
| scan0165 | Test results comparing maximum temperatures for 3-bladed and 6-bladed fans during hill climb and level running tests. | ||
| View original record | EH2/LG26.11.19. TEST 3. Contd. Hill Climb. Maximum temp: with 3-bladed fan 71°C. " " 6-bladed fan 68°C. Level running 30 M.P.H. Maximum temp: with 3-bladed fan 66°C. " " 6-bladed fan 64°C. (upside… | ||
| scan0166 | Accompanying drawing LeC.1388 for the 'Goshawk II' fan and bracket. | ||
| View original record | To Hm. from E. Copy to Cd. " WOH. " HY. " HS. " S.C. x4237 RE 'GOSHAWK II' - FAN AND BRACKET. Herewith please receive drawing LeC.1388 showing the fan and bracket for "Goshawk II". E. EA/G30/4/21. | ||
| scan0167 | Alteration to the fan pulley and increasing the fan size for the Goshawk 11 chassis. | ||
| View original record | X.4237 8.10.21. Extract from E2/G8.10.21. X.4219 X.4237 We shall very shortly send you an alteration to the fan pulley required by the change in the slipper drive, and at the same time we are putting… | ||
| scan0168 | Design changes for the Goshawk II engine's wheelcase, gearing, and fan. | ||
| View original record | To Da. from R. c. to Wor. c. to Hs. c. to BY. H.R. 288A (100 C.S. Bks 10/33) G. 2047 X4237 E6/G13.10.21. X.4233 X.4237 - RE GOSHAWK 11. WHEELCASE AND GEAR AND FAN. X.4244 We send you herewith drawings… | ||
| scan0169 | Alterations to the fan, radiator, and flywheel assembly as per Mr. Royce's instructions. | ||
| View original record | R.R. 235B (100 T) (S.H. 89, 22-7-20) G 2769 contd:- -2- E6/G13.10.21. ----------- 2.BA washers. A larger fan has been shewn in accordance with Mr. Royce's instructions, for the radiator, and the… | ||
| scan0170 | Recommendation to lengthen the fan pulley adjustment nut on the fan drive bracket to improve accessibility. | ||
| View original record | X.4237 21.10.21. Extract from E1/G21.10.21. X.4219 FAN DRIVE BRACKET. X.4237. The nut which tightens the steel strap for the fan pulley adjustment should be lengthened so as to bring the hexagon clear… | ||
| scan0171 | Design changes to the Goshawk 11 carburetter silencer and control gear. | ||
| View original record | To Da. from E. c. to CJ. c. to Wor. c. to BY. c. to Hs. X4237 E4/G29.10.21. RE GOSHAWK 11. SILENCER FOR CARBURETTER AND MODIFIED CONTROL GEAR. X.4237 X.4228 X.4239 We send you herewith the original of… | ||
| scan0172 | Recommendation to provide fan lubrication using an 'ENOTS' Lubricator. | ||
| View original record | X.4237 Extract from Hsl/LG15.11.21. FAN LUBRICATION. X.4237. At present there is no means of lubricating the Fan. We recommend that provision should be made for an "ENOTS" Lubricator. Hs. | ||
| scan0173 | Proposed fan cowling for the Goshawk 11 engine and the potential for increased noise. | ||
| View original record | Mr Shelton from BY. c. Hs. RECEIVED [stamp with MAR 2 on dial and 'Hs' handwritten] X4237 BY12-P1.3.22. GOSHAWK 11. FAN. E; informs me that it is considered desirable by Mr Royce to issue the cowling… | ||
| scan0174 | Continued testing and fan belt issues of the G-Goshawk-11 car. | ||
| View original record | X4237 To R. from Hs. c. to CJ. and BJ. c. to E. c. to Ds. c. to BY. c. to Wor. c. to EP. Hs1/LG22.5.22. X407D X4237 G-GOSHAWK-11. We attach for your information copy of report we have received from… | ||
| scan0175 | Mileage, engine misfire due to a stretched valve, loose spring clips, poor quality fan belts, and a broken thermometer on a test car. | ||
| View original record | Hotel d l'Ouest, Laval, Mayenne, France. 18th. May 1922. Re. from Hy. C-S-HAWK-11. ----------------- Miles run May 16th. 382 " " May 17th. 389 Previous mileage since Derby 7021 Total mileage to May… | ||
| scan0176 | The design of a larger fan and radiator modifications for the Goshawk 11. | ||
| View original record | X.4237. To Da. from E. c. to CJ. c. to Wor. c. to BY. c. to Hs. c. to EP. E3/M30.5.22. GOSHAWK 11. LARGER FAN. X.4239. We send you herewith drawing No.LeC.1577 shewing an 18" diameter fan with wider… | ||
| scan0177 | New fan fixture design for the Goshawk engine, putting a hold on related parts. | ||
| View original record | X.4237. To Hs. from R. c. to CJ. Wor. c. to BY. EP. R4/M21.6.22. RE. GOSHAWK FAN. X.4237. Owing to the modifications to the radiator and difficulties in keeping the fan belt tight we have decided to… | ||
| scan0178 | Recommendation to use a short-link fan belt for the Goshawk 11. | ||
| View original record | X4237 BY. from Hs. Hs2/LG19.7.22. GOSHAWK 11. FAN BELT. We recommend that the short-link fan belt should be used on this car. Hs. | ||
| scan0179 | Query regarding the production finish for the 'GOSHAWK II' Fan Hub and Blades. | ||
| View original record | To [REDACTED], from BY/Shn. c. to Hs. [REDACTED] (X4237) BY/Shn1/DB.21.8.22. RE "GOSHAWK II" - FAN - SEC:5220. Will you please inform Mr Bailey if black stove enamelling is to be the production finish… | ||
| scan0180 | From 'E' forwarding a request from Mr. Royce to test the Goshawk 11 cowling under full power road conditions. | ||
| View original record | To Hs. from E. E. to CJ. X4237 E1/M14. 9.22. COMPARISON OF GOSHAWK 11. FANS WITH AND WITHOUT COWLING+ X.4237 X.4240 Referring to your report on the above, Mr. Royce would like you to test the cowling… | ||
| scan0181 | Comparison of wind velocity tests on Goshawk fans with different configurations and engine speeds. | ||
| View original record | X4237 COMPARISON OF GOSHAWK FANS. Tests on S-Goshawk-11 car with original height of radiator - Wind velocity measured at 3 points - bonnet fitted during tests. Minus readings show when air is blown… | ||
| scan0182 | Drawings for a spring-mounted fan for the Goshawk 11. | ||
| View original record | X.4237. To BY. from E. c. to CJ. c. to Wor. c. to Hs. c. to EP. E1/M28.9.22. GOSHAWK 11, FAN X.4237. We send herewith drawings No.s LeC.1629 and 1631. LeC.1629 shews a design of spring-mounted fan… | ||
| scan0183 | Querying whether a specific spring-mounted 18-inch fan should be fitted to the first 20 Goshawk II cars. | ||
| View original record | BY. c. to Hs. X4237 FR EP/Thn5/H4.10.22. Re. GOSHAWK II. FAN. Further to me EP4/H29.9.22, re Incompletions and Modifications on first 20 Goshawk, paragraph 12, re Larger Fan to Radiators, I have now… | ||
| scan0184 | Water temperature test results for the Goshawk 11 engine under various cooling configurations on Swinscoe Hill. | ||
| View original record | X4237 26.10.22. GOSHAWK 11. TEMPERATURE TESTS (WATER). On Swinscoe Hill - Asbourne Leek Road. Speed 20 m.p.h. to 14 m.p.h. No Fan - all closed. cowling off. Atmos: 13°C water: 60°C start moving half… | ||
| scan0185 | Goshawk 11 engine temperature test results under various fan and cowling configurations. | ||
| View original record | Goshawk 11. Temperature tests - contd:- Speed 26 m.p.h. to 21 m.p.h. | | No. Fan - all closed. cowling off. | 18" Fan - all closed. cowling off. | 18" Fan - all closed. cowling on. |… | ||
| scan0186 | Water temperature test results for the Goshawk II engine on Swinscoe Hill under various fan, cowling, and shutter configurations. | ||
| View original record | TEMPERATURE TESTS (WATER) YL4237 GOSHAWK II ON SWINSCOE HILL (ASHBOURNE LEEK ROAD) SPEED 20 M.P.H. TO 14 M.P.H. Table 1: NO FAN. ALL CLOSED. COWLING OFF. ATMOS. | WATER START: 13°C | 60°C MOVING HALF… | ||
| scan0187 | Data table comparing atmospheric and water temperatures under different engine cooling configurations. | ||
| View original record | SPEED 26 M.P.H. to 21 M.P.H. | | NO FAN. | 18" FAN. | 18" FAN. | | | COWLING OFF. ALL CLOSED | COWLING OFF. ALL CLOSED | COWLING ON. ALL CLOSED | | | ATMOS. | WATER | ATMOS. | WATER | ATMOS. | WATER |… | ||
| scan0188 | Confirming all production Goshawks will have a larger fan with a spring-tightened fan belt. | ||
| View original record | To BY. CJ. BJ. - from R. Hs. EP. X4237 R7/M23.11.22. GOSHAWK X.4237. It is understood that all production Goshawks will have the larger fan with spring tightening of the fan belt as on LeC.1629. R. | ||
| scan0189 | Omission of an untested automatic spring adjustment for the Goshawk 11 engine fan. | ||
| View original record | X4237 B C.S. D.O. H.S. E. H.E. BY1-P27.11.22. GOSHAWK 11. Referring to E7/M231122, whilst we are fitting the large diameter fan we have not included on standard the automatic spring adjustment for… | ||
| scan0190 | New arrangement to drive the fan from the dynamo on the Goshawk engine. | ||
| View original record | To Hs. from R. c. to CJ. c. to Wor. c. to EP. c. to Da. c. to EFC. X4237 R3/M1.12.22. RE. HALF TIME GEARS. X.4247. X.4237. We are sending an arrgt. so that the fan can be driven from the dynamo drive… | ||
| scan0191 | Modification for the Goshawk 11 engine's fan, driven from the dynamo drive, to reduce gear noise. | ||
| View original record | To BY. from E. c. to CJ. c. to Wor. c. to Hs. c. to EP. X4237. E1/M7.12.22. X.4237. GOSHAWK 11. FAN DRIVEN FROM DYNAMO DRIVE. We send you herewith drawing No.LeC.1654 and 1655 shewing the above. The… | ||
| scan0192 | Query regarding which of two springs, E.52284 and E.52285, should be used for production of the Goshawk II fan. | ||
| View original record | To Hs. X4237 BY/Shn3/DB.28.3.23. RE "GOSHAWK II" - FAN - SEC:5220. CHASSIS 501-750. We should be glad to know if you are able to report which of the springs E.52284 and E.52285 should be used on… | ||
| scan0193 | Standardisation of a spring tension mechanism for fan belt adjustment. | ||
| View original record | R R 755 (5 H) (S H 268, 20-9-20) G 2354 COMPLETED 13.4.23. STANDARDISATION of CHASSIS PARTS. Description of Parts. SPRING TENSION FOR FAN BELT ADJUSTMENT. Origin. To ensure fan belt is always at the… | ||
| scan0194 | Cost implications of implementing a fan belt adjustment alteration at different stages of production. | ||
| View original record | COPY. To Hs. from My/JW. My/JW/Nl/139A/M6.3.23. X.4237 - SPRING TENSION FOR FAN BELT ADJUSTMENT. Receive herewith standardisation sheet as above with Cost filled in. The old parts have been ordered up… | ||
| scan0195 | Requesting severe testing of a new special endless and jointless 20HP fan belt from Messrs. Ormerod & Co. to solve booming issues. | ||
| View original record | x4237 Hs. BY2-P16.4.23. With reference to the special endless belt which Wd, has been discussing with Messrs. Ormerod & Co., we have now received from them a sample 20HP belt which is endless and… | ||
| scan0196 | The performance and failure of an Ormerod endless fan belt during testing. | ||
| View original record | RR 28 (10H BKS) (SK 185 8-10-22) MP 260736 ROLLS-ROYCE LTD. INSTRUCTIONS To Mr. Hives 30-4-1923 No. Customer's No. Re attached memo. By2/P16.4.23, dealing with the Ormerod endless fan belt. This belt… | ||
| scan0197 | Modification to the fan drive for the Goshawk engine. | ||
| View original record | TO HY. FROM R. c. to CJ. BJ. WCH. c. to PN. HS. EPC. c. to DA. S. EP. X4237 R4/M26.4.23. GOSHAWK FAN DRIVE. X4237 X3522 On No.7.Goshawk the fan is being driven by belt from the dynamo drive. It… | ||
| scan0198 | Parts required for a fan drive from a dynamo drive. | ||
| View original record | To Hs. X4237 BY/Shn1/DB.1.5.23. X.4237 - FAN DRIVE FROM DYNAMO DRIVE. With reference to your conversation of yesterday, it should be noted that when using the Fan Drive belt on the Dynamo drive, the… | ||
| scan0199 | The failure of a special fan belt during testing and its return to the sender. | ||
| View original record | X4237 BY. from Hs. Hs4/LG2.5.23. RE. FAN BELT We are returning to you herewith, special endless Fan Belt supplied by Messrs. Ormerod & Co. which you sent to us recently with your BY2/P6.4.23. This… | ||
| scan0200 | Telegram received by telephone from Royce awaiting a decision on drive preference. | ||
| View original record | ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. X4237 Time Received: 5-20 Date: 19-7-23 To: R Derby By: WEA from: Chichester 4-39 RECEIVED 19 JUL 1923 Hives we await your decision for preference… | ||
| scan0201 | Fan belt irregularity and mounting solutions for the Goshawk 11 engine. | ||
| View original record | To HS. from R. c. to CJ. c. to BY. c. to EP. X4237 RL/M21.7.23. RE. GOSHAWK 11. FAN MOUNTING. X.4237 X.446 I see no reason for the fan belt irregularity of which you complain. We have never had this… | ||
| scan0202 | Series of graphs comparing belt drive performance, spring tensions, and the effect of temperature on belt slip. | ||
| View original record | COMPARISON OF DRIVES FAN PULLEY REVS: DYNAMO SHAFT DRIVE 857, CRANKSHAFT DRIVE 1019 DRIVER REVS: 1000 % OF SLIP OF BELT ENGINE R.P.M. 16 LBS TENSION 18 LBS TENSION 20 LBS TENSION 16 LBS 20 LBS 18 LBS… | ||
| scan0203 | Two graphs comparing fan drive pulley performance against engine RPM, and fan drive control systems. | ||
| View original record | Left Graph: COMPARISON OF PULLEYS. DRIVE FROM CRANKSHAFT PULLEY. LARGE FAN PULLEY ------x RATIO 1-1 APPROX. SMALL FAN PULLEY ------o RATIO .8:1 APPROX. Y-AXIS: % FAN SLIP. X-AXIS: ENGINE R.P.M. DATA:… | ||
| scan0204 | Slight revision to the Goshawk II fan pulley and spring drive. | ||
| View original record | To BY. from E. c. to CJ. c. to Hs. X4237 E2/M16.8.23. GOSHAWK II. - FAN PULLEY AND DRIVE X.4222 FOR SPRING DRIVE - LeC.1727. X.4237 We send you herewith drawing No.LeC.1749., shewing the above. This… | ||
| scan0205 | Complaint about the new Fan Drive E.52560 on the 20 HP Chassis. | ||
| View original record | To Hs. X4237 BY/Shn2/DB.30.8.23. RE 20 HP CHASSIS - FAN DRIVE E.52560. With reference to the new type of Fan Drive E.52560 brought on at chassis No.501, the Works point out that this cannot be removed… | ||
| scan0206 | New, improved endless leather vee-type fan drive belts from supplier Messrs. Ormerod for the 20HP model. | ||
| View original record | T M W HS. c. Mr Shelton. X4257 BY18-P28.9.23. 20HP. FAN DRIVE BELT. We have received from messrs. Ormerod, two more endless leather vee type belts which they have prepared as a result of their… | ||
| scan0207 | Agreeing to a suggestion from the Tool Dept. to make the pivot and spindle for the fan drive a one-piece forging. | ||
| View original record | To BY. from E. c. to Hs. (X4237) E3/M16.10.23. Lec.1753. PIVOT & SPINDLE FOR FAN DRIVE. X.3438 X.4237 In reply to your memo. BY2/20.9.23., recently received, please note Mr. Royce agrees to adopting… | ||
| scan0208 | Bench experiments to determine the optimal blade shape for 20 HP radiator fans made from sheet material. | ||
| View original record | X4234 To R. from EFC. c. CJ. E. Da. c. By. Rg. EFCl/T9.B.25. X.1017. BENCH EXPERIMENTS ON 20 HP. RADIATOR FANS. X4234 In our EFCl/T17.12.24, it was mentioned at the end that an experimental 20 HP. fan… | ||
| scan0209 | Continued testing and comparison of different fan designs, including modifications and results. | ||
| View original record | Contd. -2- EFCl/T9.2.25. Curves similar to groups F and G of our last report are not given this time. Instead, there is however, sheet II of curves for three of the fans, in which the thrust produced… | ||
| scan0210 | Experiments on various fan designs, analysing blade shape, curves, and overall performance. | ||
| View original record | EFCL/T9.2.25. -3- Contd. as the Hispano, or as the others, the blades being apparently too narrow. Passing over No.25, we then arrived at a fan No.26, similar to No.22 but rather better as regards the… | ||
| scan0211 | The merits of high versus low speed engine fans and their drive ratios. | ||
| View original record | EFC1/T9.2.25. -4- Contd. whether one wants the fan to be a high speed or a slow speed fan (of similar efficiency). It is probable that a rather lower speed fan is more generally satisfactory, driving… | ||
| scan0212 | Analysis of cooling fan performance comparing a new experimental fan to the present standard model. | ||
| View original record | EFC1/T9.2.25. -5- Contd. road speed than at present. The average ratio between corresponding speeds for similar thrusts on these two fans (present standard and best experimental) we find to be .965,… | ||
| scan0213 | Comparison of thrust and power requirements for various 20 HP fans. | ||
| View original record | EFC1/T9.2.25. -6- Contd. (1) Present standard 20 HP. fan. (2) Hispano. " (3) Most efficient expl. 20 HP fan. From these curves it will be seen that whereas the thrust for a given speed for the new fan… | ||
| scan0214 | Performance graph comparing fan speed and power required versus axial thrust for Hispano and Goshawk fan modifications. | ||
| View original record | I. FAN SPEED (r.p.m.) 2600 2400 2200 2000 1800 1600 1400 1200 1000 800 600 400 200 0 MOTOR OR ENGINE POWER REQUIRED TO DRIVE FAN. (H.P.) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 .5 0 AXIAL THRUST OF FAN IN LBS… | ||
| scan0215 | Graph comparing the thrust and power of different engine fans against fan speed. | ||
| View original record | II. No. FAN. 4. HISPANO-SUIZA 7. PRESENT STANDARD GOSHAWK. 27. FINAL EXPERIMENTAL GOSHAWK. POWER REQUIRED TO DRIVE FAN. (H.P.) 0, .5, 1.0, 1.5, 2.0, 2.5, 3.0 AXIAL THRUST OF FAN IN LBS WEIGHT. 0, 1,… | ||
| scan0216 | Data sheet detailing power requirements and thrust measurements for a Goshawk 4-blade fan with an experimental modification. | ||
| View original record | X4237 POWER REQUIRED TO DRIVE RADIATOR FAN IN VARIOUS CIRCUMSTANCES. No. 21 Circumstances :- Goshawk 4 blade fan with 2ND Experimental modification Date, Motor Field current (amps.), Motor Speed., Fan… | ||
| scan0217 | Data table showing calculations for Test No. 2. | ||
| View original record | Test No. 2 | Contd. (Go) (CALCULATIONS) Extra on load. Volts. Amperes. | Armature resistance (Ohms). | Ohmic Volts limit. | Back E.M.F. | Power delivered. Watts. (H.P.) | % Slip. | Engine speed. 2.05… | ||
| scan0218 | Test data on the power required to drive a Goshawk No. 2 radiator fan with modified blades. | ||
| View original record | POWER REQUIRED TO DRIVE RADIATOR FAN IN VARIOUS CIRCUMSTANCES. No. 22 Circumstances :- Goshawk fan (No 2) with width of blade reduced by 1 inch, thus giving blade small positive angle. | Date | Motor… | ||
| scan0219 | Calculations from Test No. 22 for the Goshawk engine. | ||
| View original record | 22 Test No. Z Contd. (Goshawk) (CACULATIONS). Extra on load. | Armature | Ohmic | Back | Power delivered. | % Slip. | Engine Volts. Amperes. | resistance | volts | E.M.F. | Watts. H.P. | | speed. |… | ||
| scan0220 | Test results for the power required to drive a Goshawk radiator fan under various circumstances. | ||
| View original record | POWER REQUIRED TO DRIVE RADIATOR FAN IN VARIOUS CIRCUMSTANCES. No. 23 Goshawk Circumstances :- | Date | Motor field current (amps.) | Motor speed. | Fan speed. S. | Ratio. | Volts across motor… | ||
| scan0221 | Data table of calculations for Test No. 8 on a Goshawk engine. | ||
| View original record | 23 Test No. 8 Contd. Goshawk (CALCULATIONS). Extra on load. Volts. Amperes. Armature resistance (ohms). Ohmic volts light. Back E.M.F. Power delivered. Watts. H.P. (H). % Slip. Engine speed. 1.74 |… | ||
| scan0222 | Data table showing the power required to drive a Goshawk engine radiator fan under various conditions. | ||
| View original record | POWER REQUIRED TO DRIVE RADIATOR FAN IN VARIOUS CIRCUMSTANCES. No. 24 Goshawk Circumstances :- Date | Motor field current (amps.) | Motor speed. | Fan speed R.P.M. | Ratio. | Volts across motor… | ||
| scan0223 | Data table of calculations from Test No. 24 for the Goshawk engine. | ||
| View original record | Test No. 24 Contd. Goshawk. (CALCULATIONS). Headers: Extra on load. Volts. Amperes., Armature resistance (ohms)., Ohmic volts light., Back E.M.F., Power delivered. Watts. H.P. (H)., % Slip., Engine… | ||
| scan0224 | Test data table showing power required to drive a 2nd Goshawk radiator fan under various circumstances. | ||
| View original record | POWER REQUIRED TO DRIVE RADIATOR FAN IN VARIOUS CIRCUMSTANCES Test No. A. 25 Circumstances:- 2ND Goshawk fan with blades similar to ~~Maltese X~~ | Date. | Motor Field Current (amps). | Motor Speed. |… | ||
| scan0225 | Tabulated log of calculations for Test No. 25, continued. | ||
| View original record | Test No. 25 Contd. (CALCULATIONS). [Column Headers] Extra on load Volts. Extra on load Amps. Armature resistance (ohms). Chassis Volts light. Back E.M.F. Power delivered Watts. Power delivered H.P.… | ||
| scan0226 | Test data for power required to drive a Goshawk radiator fan under various circumstances. | ||
| View original record | POWER REQUIRED TO DRIVE RADIATOR FAN IN VARIOUS CIRCUMSTANCES Test No. A. 26 Goshawk Circumstances:- No 22 fan repeated Date. Motor Field Current (amps.). Motor Speed. Fan Speed. S. Ratio. Volts… | ||
| scan0227 | Continuation of Test No. 26 calculations in a tabular format. | ||
| View original record | Test No. 26 Contd. (CALCULATIONS). Table Columns: 1. Extra on load Volts. 2. Extra on load Amps. 3. Armature resistance (ohms). 4. Ohmic volts light. 5. Back E.M.F. 6. Power delivered Watts. 7. Power… | ||
| scan0228 | Test report detailing the power required to drive a radiator fan under various circumstances. | ||
| View original record | POWER REQUIRED TO DRIVE RADIATOR FAN IN VARIOUS CIRCUMSTANCES Test No. 27. Circumstances:- Y | Date. | Motor field current (amps). | Motor speed. | Fan speed. | Ratio. | Volts across motor brushes. |… | ||
| scan0229 | Continuation of calculations for Test No. 27, detailing electrical performance measurements in a table. | ||
| View original record | TEST No. 27 Contd. (CALCULATIONS) | Extra on load Volts. | Extra on load Amps. | Armature resistance (Ohms). | Ohmic volts light. | Back E.M.F. | Power delivered Watts. | Power delivered H.P. (H). | %… | ||
| scan0230 | Test results table for the power required to drive a radiator fan under various circumstances. | ||
| View original record | POWER REQUIRED TO DRIVE RADIATOR FAN IN VARIOUS CIRCUMSTANCES Test No. 27 Circumstances:- Y | Date. | Motor field current (amps). | Motor speed. | Fan speed. H. | Ratio. | Volts across motor brushes.… | ||
| scan0231 | Continuation of Test No. 27 showing calculation results in a table. | ||
| View original record | TEST No. 27 Contd. (CALCULATIONS) Extra on load. Volts., Amps. Armature resistance (ohms). Ohmic volts light. Back E.M.F. Power delivered Watts. H.P. (H) % Slin. Engine speed. 2.35 | 5.30 | .450 | .90… | ||
| scan0232 | Article from 'The Autocar' magazine discussing the effects of frame distortion on engine and gearbox wear. | ||
| View original record | THE AUTOCAR, March 4th, 1911. 291 The Effect of Frame Distortion on Wear. By A. W. Reeves. A consideration of the claims of the single unit system of combined engine and gear box as being a means… | ||
| scan0233 | The effectiveness of struts fitted to the frame to avoid door rattles. | ||
| View original record | X962 Mr Barrington for Technical Committee. Dec 5th 1911 RE STRUTS ON FRAME FOR AVOIDING DOOR RATTLES. ( See T.C. minutes No. 75 ) These struts have been fitted on 1410 xxxxx car as arranged. The car… | ||
| scan0234 | Agreement to re-fit car doors with struts to cure rattling and arrange for road tests. | ||
| View original record | it has been agreed [Handwritten: T.C.] that the doors of the body be re-fitted and car ran about further with the struts fitted. After certain work on the car about which we have been instructed by… | ||
| scan0235 | Sketch showing the measured deflection of a component at various points without struts fitted. | ||
| View original record | sketch showing amount of deflection at these centres without struts fitted < .015” > < .030” > < .015” with + without load. eP 5/12/11 | ||
| scan0236 | Record of tests and modifications for a 12-inch deep frame. | ||
| View original record | R.R. 512 (2 1/2 H) (X.435. 14.12.11) G. 2227 OH/14 X962 X829 Section 100 Description 12" deep frame. Date: 7/2/12, Report: See T.C. 105. to be fitted to a 1900 series chassis standard except brass… | ||
| scan0237 | Report card detailing work carried out on a chassis frame and body fitting. | ||
| View original record | T.C. 117. To fix 1731 body to 1926. Mr Spring to take up matter of bracing. T.C 118. Frame kinked. Mr Rope - folder. ① To be perforated & tested. ② of 12" frame perforated is OK test with Inverted… | ||
| scan0238 | Introduction of a deeper frame, its weight, cost, and potential for lightening through drilling. | ||
| View original record | 2050/2050 12th April 1912. Frame. Mr Johnson said - "Why cannot the deeper frame be introduced into 2000 and what would be entailed by so doing? To introduce the deeper frame on 2000, assuming that… | ||
| scan0239 | Continuing tests with a 12' frame and a new 9' frame for improved stiffness. | ||
| View original record | (2) the fact that a great portion of the surface of the frame is used up by brackets. In the meantime, we are continuing the tests with the 12" frame and are having a 9" frame made also, which will… | ||
| scan0240 | Standardizing to a 9-inch frame over a 12-inch frame, considering tests, rigidity, and production implications. | ||
| View original record | TBB2/L15412. F r Royce Mr Johnson 1716. b 1718. 160 April 15th.1912. Deep frames and trusses. -------------------- The tests with the 12" frame have up to the present been satisfactory in assisting… | ||
| scan0241 | Record card detailing the consideration, comparison, and eventual dismantling of 9' frames. | ||
| View original record | R.R. 512(2 1/2 H) (X.435. 14.12.11) G. 2227 X962 - X828 Section 100 Description: 9" Frames LEFT COLUMN: Date: 23/4/12 Report: See Previous sheets in special folder. T.C. 116. Two on order for 1714 &… | ||
| scan0242 | Departmental memo relaying a telegram from Mr Royce approving 9' frames with 1/8 inch metal for model 2100. | ||
| View original record | R.R. 475 (50 H) (X 636. 20.2.12) E.P. 1297 ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). N9/B25412. DEPARTMENTAL MEMO. This column is for Name… | ||
| scan0243 | Containing a telegram from Mr. Royce about frame and fly-wheel design for series 2100. | ||
| View original record | N5/B29412. 29th April 1912. Mr Wormald Mr Platford Mr Barrington Mr Spinney Mr Bailey Mr Elliott. Below is a copy of a telegram which I have received from Mr Johnson this morning:- "Mr Royce… | ||
| scan0244 | The details and potential use of new frame trusses from France and the ongoing testing of a 12-inch frame. | ||
| View original record | TBB12/L3512. part instructed May 3rd.1912. Mr Royce Mr Johnson tests Re Trusses and Deep Frames -------------------------- The details of the truss sent from France will be issued to-day (May 3rd.)… | ||
| scan0245 | Record card for front wing gauges. | ||
| View original record | R.R. 512 (2½ H) X. 488. 2.1.12.) G 2273. X594 x 962 Section 100. Description: Front Wing gauges First Entry: Date: 12/6/12 Report: Sheet from O/o. Sect. price to F2404/5 Second Entry: Date: 7/7/12… | ||
| scan0246 | Fitting of deep frames and trusses to various chassis, including updates on body fitting and testing. | ||
| View original record | TBB18/L20512. May 20th. 1912. Mr Royce Mr Johnson. Re Deep Frames and Trusses. We are not proceeding with the fitting of the 9" frames, as we gathered from Mr Royce's notes that he did not desire… | ||
| scan0247 | Adoption of Aluminium Wing Gauges F 2492 as a standard. | ||
| View original record | Mr Barrington. x962 Aug. 27th. x594 27.8.12 RE ALUMINIUM WING GUAGES F 2492. The above appear quite satisfactory and should be adopted as standard as soon as possible. E.P. MN advised 29.8.17 | ||
| scan0248 | Departmental memo discussing whether to use old stock or commence with a new type of front wing gauges. | ||
| View original record | R.R. 475 (100 H) (X 967. 22.5.12) E.P. 1898. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person… | ||
| scan0249 | Wing gauges, recommending their adoption as standard for L to E cars. | ||
| View original record | x962 N 594 Re Wing Guages F 2492. TBB5/L30812. Mr Nadin 30.8.12. Mr Platford reports that these are quite satisfactory and should be adopted as standard* as soon as possible. * presumably for L to E… | ||
| scan0250 | Seeking advice on the standardization of front wing gauges for L to E cars. | ||
| View original record | Mr Nadin. 30.8.12. Re Front Wing Guages. F 2492. TBB6/L30812. With reference to the standardization of front wing guages, Mr Platford is anxious that a number of these should be ordered for the L to E… | ||
| scan0251 | The decision to dismantle a 12' frame and requests for test results on other frames. | ||
| View original record | R.R. 512(2 1/2 H) (X. 435. 14.12.11) G. 2227. Section Description: 12" frames. Date: 18.9.12. REPORT: see memo NH/B11912. Re 12" frame to be dismantled & stowed away & parts re assembled on another… | ||
| scan0252 | An account of tweaking a 12' frame during a test in 1926. | ||
| View original record | X829 For account of tweaking of 12" frame, while japping test was being made to test Sphere on 1926. see YB37/2/111212 in file X1 | ||
| scan0253 | Broken front tubular cross member from chassis 1860. | ||
| View original record | R.R. 475 (100 H) (PP 196. 22.11.12) E.P. 3016. x962 Re 1860. L to E. Trials. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). DEPARTMENTAL MEMO.… | ||
| scan0254 | Departmental memo regarding an investigation into a broken front cross tube. | ||
| View original record | R.R. 475 (100 H) (PP 366. 7.1.13) E.P. 3312. ROLLS-ROYCE LIMITED NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES. 476 (Four Lines). DEPARTMENTAL MEMO. This column is for Name of Person… | ||
| scan0255 | Internal request to despatch a broken cross tube for Mr. Royce. | ||
| View original record | Mr Roney 10-12-13 TBB4/L10213 Please despatch immediately to Sales Dept. for Mr Royce broken cross tube herewith. Will you please also mark the parcel with a reference similar to that on label… | ||
| scan0256 | Broken front cross tube bracket on chassis 1860 and its relation to a previous failure. | ||
| View original record | X 962 X682 Mr Johnson for Mr Royce 10-2-13 TBB3/L10313. Re Broken Front Cross Tube Bracket - Chassis 1860. With reference to the attached matter, I have inspected the broken cross tube and am of the… | ||
| scan0257 | Analysis of chassis component failure, specifically regarding brackets, rivets, and cross tube lugs. | ||
| View original record | -2- rivets out, while the same difficulty does not appear to have been experienced with the rivets in the sound bracket. Also, the sound bracket (and also the broken bracket, to a slighter extent)… | ||
| scan0258 | Analysis of a bracket failure leading to side frame twisting and side thrust on the front horns. | ||
| View original record | -3- off side bracket failed owing to the near side rivets becoming loose, but it may be that the off side bracket had been broken for some time and this would then throw the whole of the strain on the… | ||
| scan0259 | Cause of torsion in the front horns and evaluating a proposed solution. | ||
| View original record | -4- at the point where the cross member is fitted. This is increased owing to the fact that the back end of the spring is anchored rather securely from side movement, with the result that the front… | ||
| scan0260 | Chassis breakage, suggesting bracket reinforcement, replacing rivets with bolts, and adding a front cross member. | ||
| View original record | -5- I think careful ribbing of the bracket should be carried out as soon as possible. I suggested in my previous report on the breakage of chassis 1484 that all cars coming into the Repair Shops… | ||
| scan0261 | Page concerning a tube for Mr Royce's inspection. | ||
| View original record | -6- tube for Mr Royce's inspection. [Watermark, mirrored text]: DICKINSON BOND 1804 CROXLEY | ||
| scan0262 | Instructions to Mr. Royce regarding the adaptation of an accelerator pedal for wider frame side members. | ||
| View original record | R.R. 300 (6 B) (XX. 847. 29.5.13) E.P. 4342. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: MR ROYCE Order No.: Customer's No.: *4695 Re: WIDER SIDE MEMBERS IN FRAME Herewith is a print of F3654, accelerator… | ||
| scan0263 | Telegram copy detailing the heat treatment procedure for frames made of 3% nickel steel. | ||
| View original record | C O P Y. X.962 X703 Re Frames. Mr Bagnall Na31/B28813. Below is a copy of a telegram received from Mr Wormald this afternoon. We should give this immediate effect.- "Heat treat all front ends of… | ||
| scan0264 | Tests on heat-treated frame ends for a revolving rig. | ||
| View original record | R.R. 637. (100H) (XX. 996. 23.6.13) E.P. 4502. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Handwritten: X962 Names and Indicating letter.… | ||
| scan0265 | Feedback and suggested modifications for an accelerator pedal design based on blueprint F.3654. | ||
| View original record | COPY. 4962 COPY. R10.B.1.9.13. R to Mr.Day. Copy for Wor. " " J. Re Accelerator Pedal for Wider Side Channels. X.695. I return herewith Blue Print No. F.3654. Please see my remarks thereon, viz., "… | ||
| scan0266 | Welding and drilling of the box section front end of a frame. | ||
| View original record | X962 COMPLETED. Wor/SM6/L15913. Re Box section front end of Frame. X.711 Mr Matthews. 15-9-13. In reply to your note of 15/9/13, we have discussed this matter with Mr Elliott and Mr Day and they… | ||
| scan0267 | Experimental Department 'B' weekly report detailing tests on frame deflection, steering wobbles, and heat treatment. | ||
| View original record | Mr Johnson. Mr Royce. X962 Wor/Hy21/L22913. September 22nd. 1913 EXPERIMENTAL DEPT. "B" Weekly Report. Reports have been made on :- X.193 - Measure deflection of frame when one front wheel is raised.… | ||
| scan0268 | Heat treatment procedures and impact testing for frames to improve uniformity and prevent breakage. | ||
| View original record | TYPE 9 R.R.Co.Ltd.(X) 100M.9.12. 4962 COPY. COPY R9/P 24.9.13. Na6/B10913. X703 To Na from R. Copy for Wor, Withreference to frames, although there does not seem a very great variation between the… | ||
| scan0269 | Results of tests on nickel steel side members and proposing future heat treatment processes. | ||
| View original record | COPY. x962 COPY. R4/P 3.11.13. x703 Re Nickel Steel Side Members. Na1/IB301013. To Na. from R. Copy for J. " " Wor. With reference to the tests of nickel steel side members, it would be as well I… | ||
| scan0270 | Experiment with side plates for a new radiator suspension on a frame. | ||
| View original record | R.R. 657. (100H) (XX. 206. 30.7.13) E.P. 4696. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Handwritten Ref: 4962 Wor/SM8/L41013. Subject: Re… | ||
| scan0271 | Responding to a query about proceeding with the production of side plates for a frame's front end. | ||
| View original record | H.R. 228A (150 n) (XX. 140. 18.7.13) E.P. 4635. k962 COMPLETED. Wor/SM3/L61013. Re Box section front end of Frame. X.711 Mr Matthews. 6-10-13. In reply to your query as to whether you should proceed… | ||
| scan0272 | Instruction memo to Mr. Royce regarding an incorrect frame curvature, enclosing a print for approval. | ||
| View original record | R.R. 300 (6 B) (XX. 368. 9.9.13) E.P. 4920. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Royce Order No.: Re: FRONT END OF FRAME - INCORRECT CURVATURE Customer's No.: X880 In reply to your note No… | ||
| scan0273 | Instruction sheet to Mr Wormald regarding the despatch of an E.A.F. distribution and a blue print. | ||
| View original record | R.R. 300 (6 B) (XX. 368. 9.9.13) E.P. 4920. 14901 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Wormald Date: 24 Oct 1918 Order No.: Customer's No.: X880 Re: Please receive for Despatch to Derby E.A.F.… | ||
| scan0274 | Design and curvature of the front end of frame X. 880. | ||
| View original record | x962 COPY X880 COPY. R4/P 29.10.13. Curvature of Front End of Frame. X. 880 Wor/SM/C251013. To Da. from R. Copy for J. " " Wor. With reference to the sweep of the front horn as illustrated on your… | ||
| scan0275 | Technical description of the vehicle's pressed steel frame, its stiffening, and engine mounting. | ||
| View original record | FRAME. Extract from Wor/Hy/L241113. x962 The frame is pressed steel of ordinary design. An outrigger is fixed on the rear cross member to carry the transverse spring and the frame is stiffened at this… | ||
| scan0276 | Weekly report from the Experimental Department detailing progress on various vehicle components and tests. | ||
| View original record | Wor/Hy8/L251113. J. R. +962 November 25th. 1913. EXPERIMENTAL DEPT. "B". Weekly Report. The following have been reported on :- X.821 - Small French Car. X.482 - Bevel Gears 5's pitch with teeth ground… | ||
| scan0277 | The bumping test of a frame with box section front horns. | ||
| View original record | From Exp. Dept. Copies for: J. R. Da. Na. 4962 Wor/Hy3/L271113. November 27th. 1913. Report on Bumping Test of Frame with box section front horns. X.711. The front horns of this frame are made of box… | ||
| scan0278 | Log of component failures and breakages recorded during a durability test run. | ||
| View original record | Wor/lly3/L271113. Sheet.2 being much more than any of the frames which are diagonally stayed or fitted with a cross member further forward. The relative movement between the horns when running was… | ||
| scan0279 | Log sheet detailing component failures and breakages recorded against engine running hours. | ||
| View original record | Wor/Hy3/L271113. Sheet. 3 After running. hrs. mins. 6 - 3. Off side pivot broke off at root of stub. (Pivot F.3372 similar to those now being used 2700 type). Pivot was new when test started. Pair of… | ||
| scan0280 | Test report detailing multiple component failures during a running test, with analysis and proposed modifications. | ||
| View original record | Wor/Hy3/L271113. Sheet. 4 After running. hrs. mins. 13 - 43. Off side weld crack spreading. 13 - 54. Near side spring broke, front end. F812 14 - 21. Near side spring broke, front end. F812 Near side… | ||
| scan0281 | Description of a modification to a stub, recessing it between journals to reduce weight. | ||
| View original record | Wor/My3/L271113. Sheet. 5 the stub and is recessed between the journals to reduce the weight. Watermark: DICKINSON BOND 1804 MADE AT CROXLEY | ||
| scan0282 | Bumping test failure on a frame with box section front horns and proposed design improvements. | ||
| View original record | COPY. X962 COPY. Mr Day from F.H.R. R13/P 1. 12. 13. Copy for Wor. for Hy. from R. Copy for J. Re Bumping Test of Frame with Box Section Front Horns. X.711. Wor/SM7/L271113. Wor/Hy3/L271113. In regard… | ||
| scan0283 | Modifications to a vehicle frame, axle, and springs. | ||
| View original record | x962 COPY. To Da. from R. Copy to J. Copy to Wor. COPY. Rl/P 12.12.13. In addition to the frame with wider flanges in hand at present, we now want a deeper frame, viz., 8" instead of 6"; at the same… | ||
| scan0284 | Advisability of shortening cantilever springs and compensating with a spiral spring. | ||
| View original record | R1/P 12.12.13. Sheet 2. COPY It will help us also in some other points. While considering this alteration to the frame, wemight consider the advisability of putting the cantilever springs out of… | ||
| scan0285 | Dispatching blueprints for a front cross member with wider side channels and end bracket riveting schemes. | ||
| View original record | x962 x695 J. for R. 24.12.13. Da1/G241213. In reply to your note R6/P151213 re Front Cross Member with wider side channels, I send herewith blue prints of F.4493/4/5/6 shewing schemes for an end… | ||
| scan0286 | Comparing the deflection and stiffness of an existing 6' frame with a proposed 8' frame. | ||
| View original record | re Frames. X1045 J. for R. 7.1.14. Da4/07114. In reply to your notes R1/P121213, R6/P231213, I send a print of F.4539, showing the 8" frame (without ties), springs shortened to 48", axle pushed back 6… | ||
| scan0287 | Continued note on frame deflection, modifications, and component repositioning. | ||
| View original record | J. for R. 7.1.14. Da4/GZ114. Cont. -2- But from the above deflections it looks as though ties would have to be fitted (the 8" side members are 12 lbs each heavier than the 6") Flanges of frame same as… | ||
| scan0288 | Frames, attaching a blueprint and another memo in reply to notes from Mr. Royce. | ||
| View original record | Wor/SM4/C8114. Re Frames. J. for R. 8.1.14. In reply to Mr. Royce's notes R1/P121213 and R6/P231213, we attach Mr. Day's memo Da4/G7114, together with blue print of F.4539. X1045 | ||
| scan0289 | Proposed modifications to a vehicle's wheelbase and frame to manage deflection and stresses. | ||
| View original record | COPY. X.962 To Da. from R. Copy to J. Copy to Wor. R3/P. 23. 1. 14. X/112 With reference to the increased length of frame, I think it would be better if we did not lengthen the frame, but only the… | ||
| scan0290 | Preference for a 6-inch frame over an 8-inch frame for new cars. | ||
| View original record | R R. 235 A (150 H) (V.V. 585. 23.2.14) G. 0363. COPY. To Da. from R. Copy to J. Copy to Wor. Copy to Na. R8/P. 16.3.14. X1045 FRAMES. I should be glad of your opinion, but it appears to me that we… | ||
| scan0291 | Confirming the satisfactory test results for some newly obtained step irons. | ||
| View original record | To Roy. from Hs/Rm. Y962 Hs/Rml/LG13.9.27. You recently asked us to test some step irons which you obtained for us. We have tried these out and find they are as satisfactory as those we are at present… | ||
| scan0292 | Increase to the internal diameter of bracket N.471 for the fourth cross member on the small chassis. | ||
| View original record | TO EPC. Mr Coverley 4260 X 3522 DA1/CB24/5/19. Re N.346 & N.471 - Fourth Cross Member and Bracket on Small Chassis. N.346 - Cross Member will remain unaltered, and we return original prints herewith.… | ||
| scan0293 | Increase in the length of tubing for the Underframe members of the 20 HP Chassis. | ||
| View original record | To EM. C. to M. EH. EFC. RHC. DA2/CB1/7/19. X3820 RE 20 H.P. CHASSIS - FRAME - 7000 - X3481. H260 With reference to our memo DA5/CB26/3/19 ordering certain lengths of tubing will you please note that… | ||
| scan0294 | To the Experimental Department confirming receipt of parts from Vickers Ltd. and Accles & Pollock. | ||
| View original record | R R 235 B (200 T) (S.F. 674. 22-5-19) G. 2376. X4260 Mr Clark. Experimental Dept. Wd/Dn6/HP101019. 10th Oct.1919. Please note that we have received from Messrs. Vickers Ltd., 2 Fourth Cross Members… | ||
| scan0295 | To Mr. Clark regarding the receipt of various parts for experiments from multiple suppliers. | ||
| View original record | X4260 Mr. Clark. X.3035. Wd/Dn3/HP3.12.19. Please note that we have received from the London Electrical Wire & Smith's ltd., 1 lb of 22 SWG Double Cotton Covered Resistance Wire for experiment 3035,… | ||
| scan0296 | Record of received parts and materials from various suppliers with corresponding stores sheet numbers. | ||
| View original record | R.R. 285A (100 T) (S.G. 643. 19-2-20) G. 2618 X4260 Mr Clark. from O.O. Wd/Dn2/HP16620. 16th June.1920. Rec'd X.3522. Please note we have received from The John Thompson Motor Pressings Ltd., 3 No.6… | ||
| scan0297 | Continuation of a stores sheet listing tubes and solid drawn steel tubing. | ||
| View original record | X4260 Continued:- Wd/Dn3/HP24620. 24th June.1920. X.3527 3 Tubes N. 2179, and 3 Tubes N. 2177. Stores Sheet 185576 of the 17th inst. 6 pieces solid drawn Steel tubing R. 4192. 6 " " " " R. 2076. 6 " "… | ||
| scan0298 | Extract detailing an issue with a flexible steering support on the Goshawk I car, causing side member twist. | ||
| View original record | To R. from Hs. X3532 (handwritten, crossed out) 4260 (handwritten) Extract from Hs1/LG7.2.21. X. 3481. GOSHAWK 1 CAR. X. 3540. X. 3522. The supprot for the steering on this car is rather flexible. If… | ||
| scan0299 | Clarifying the numbering of the Goshawk 11 frame cross member. | ||
| View original record | BY. from Da. c. to RHC (1 print) c. to Hs. c. to TB. X.3522 4260 Da9/CB8.3.21. X.4260 - GOSHAWK 11 - FRAME CROSS MEMBER. X.3522. Replying to your BY/C18/P22.2.21., we intended on Goshawk 11 to number… | ||
| scan0300 | Instruction to process blueprints for a revised Goshawk X Frame. | ||
| View original record | To BY from DA. Copy to HS (1 print). Copy to TB (1 print). Copy to FWC (1 print). Copy to WFC. X.4260 DA1/CB2-12-20. X.4260. REVISED GOSHAWK X FRAME. Please receive herewith two blue prints of "A"… | ||
| scan0301 | Alterations for the revised 'Goshawk' chassis, including wheelbase, body, and seating specifications. | ||
| View original record | R.R. 285A (100 T) (S.H 159, 11-8-20. G. 2800 X4260 To Dn. from E, c. to CJ. c. to Wor. c. to Hs. c. to By. c. to EFC. E2/G4.12.20. X.4260. RE REVISED "GOSHAWK" CHASSIS - SIDE CHANNELS. Attached please… | ||
| scan0302 | Continuation of instructions regarding a new drawing to allow for steering elbow room. | ||
| View original record | Contd. -2- E2/G4.12.20. this to allow elbow room for steering. Would you kindly instruct thenside channels to this new drawing. E. | ||
| scan0303 | Technical memo discussing design options and suggestions for the 'Kite' frame, specifically concerning spring anchorage, cross members, and frame width adjustments. | ||
| View original record | R.R. 256A (100. T) (S.H 159, 11-8-20) G 2800 To R from DA. Copy to DRS. Copy to EFC. X.4260 A1/CB17-12-20. [STAMP: RECEIVED] [STAMP: P.W.D. 20 DEC 1920] X.4260 Re "Kite" Frame. We send herewith a… | ||
| scan0304 | The design and detailing of the 'Kite' Frame Side Members and dumb irons. | ||
| View original record | R.R. 285A (100 T) (S.H 159. 11-8-20) G 2600 X.4260 To EY from DA. Copy to HS (1 print). Copy to RB (1 print). [Struck through: Copy to HHC (1 print).] Copy to EFC. Re "Kite" Frame Side Members. We… | ||
| scan0305 | Alterations to the Goshawk II frame. | ||
| View original record | X4260 To Da. from E, E1/G19.1.21. c. to CJ. c. to Wor. c. to Hs. c. to EFC. X.4260. RE GOSHAWK II FRAME. With regard to Mr. Royce's memo R6/G17.1.21, and R3/G18.1.21, we send you herewith drawing… | ||
| scan0306 | Alterations to the front spring, floorboards, bump stops, and frame gauge. | ||
| View original record | Contd. -2- E1/G19.1.21. Mr. Royce intends now to use a short solid link for the rear end of the front spring, attached to the under-side of the side channel in the manner used on the 40/50 H.P. The… | ||
| scan0307 | Modifications to the 'Goshawk II' frame and the particulars of Rudge-Whitworth and Dunlop wheels. | ||
| View original record | To R from DA. Copy to BN. Copy to EFC. X.4260 DA5/CB24-1-21. "GOSHAWK II" - FRAME. We received your telegram this morning instructing us to make the Goshawk frame 34" wide at the rear, and we are… | ||
| scan0308 | Alterations to the 'Goshawk 11' side channel to suit 36' front springs. | ||
| View original record | X4260 To Da. from E. c. to CJ. c. to Wor. c. to Hs. c. to EFC. E2/G24.1.21. X.4260. RE "GOSHAWK 11" SIDE CHANNEL. In accordance with our telegram of even date, copy of which is attached, we send you… | ||
| scan0309 | The width of the back axle and frame for the 'Goshawk 11' chassis. | ||
| View original record | R.R. 285A (100 T) (S.H. 798. 10-12-20) G 2947 X4260 To Da. from E. c. to CJ. c. to Wor. c. to Hs. c. to EFC. E1/G25.1.21. X.4260. RE "GOSHAWK 11" - WIDTH OF BACK AXLE AND FRAME. We send you herewith… | ||
| scan0310 | Continuation page discussing frame width specifications. | ||
| View original record | R.R. 225A (100 T) (S.H. 768. 10-12-20) G. 2047 Contd. --2-- E1/G25.1.21. be done, but only by about half an inch. The frame width at the front end should be 29" as specified. E. | ||
| scan0311 | Alterations to the 'Goshawk 11' third cross member, scheme 671, based on a drawing from Mr. Royce. | ||
| View original record | X4260 To Da. from E. c. to CJ. c. to Wor. c. to Hs. c. to EFC. E1/G26.1.21. X.4260. RE "GOSHAWK 11" THIRD CROSS MEMBER - N. SCHEME 671. -------------------------------------------------------------… | ||
| scan0312 | Manufacturing process for the front and rear dumb irons for the 'Goshawk 11' project. | ||
| View original record | X4260 To Da. from E. c. to CJ. c. to Wor. c. toHs. c. to EFC. X. 4260. E1/G27.1.21. RE FRONT AND REAR DUMB IRONS - "GOSHAWK 11" N. SCHEME 689. Referring to the above, we send you herewith drawing No.… | ||
| scan0313 | With sketch detailing required modifications to a front axle, spring pad, and rear dumb irons. | ||
| View original record | Contd. gramming action. -2- E1/G27.1.21. RUBBER STRIKES IN CENTER OF BOX BETWEEN BOLTS HEADS BUT BOLTS CAN HAVE COUNTERSUNK HEADS IF NECESSARY. Mr. Royce would like you to make a scheme of this… | ||
| scan0314 | The design and modeling of the Goshawk II bonnet and radiator. | ||
| View original record | H H. 246A (100 T) (S.H. 159. 11-8-20) G. 2800 X.4260 To B [strikethrough] from DA. Copy to HS (1 print). Copy to TR (1 print). Copy to RHC(1 print). Copy to EFC. [STAMP: RECEIVED JAN 29]… | ||
| scan0315 | Alterations to the Goshawk II's 3rd cross member, referencing a print of 'N' Scheme 748. | ||
| View original record | X.4260 To H from DA. Copy to BN. Copy to EFC. DA3/CB3-2-21. X.4260 GOSHAWK II - 3rd CROSS MEMBERS. We send herewith a print of "N" Scheme 748 shewing the 3rd Cross Member and front anchorage on rear… | ||
| scan0316 | Modifications to the 'Goshawk II' front dumb irons, comparing riveting and liquid brazing. | ||
| View original record | TO R. FROM DA. Copy to BN. Copy to EFC. X.4260 DA18/AH16.2.1921. FC RECEIVED. FEB 16 1921 X.4260 "GOSHAWK II" FRONT DUMB IRONS. ----------------------------------- Herewith a print of "H" Scheme 755… | ||
| scan0317 | From Mr. Royce suggesting a revised manufacturing process for Goshawk 11 front dumb irons. | ||
| View original record | To Da. from E. c. to CJ. c. to CLK. X4260 E3/5.3.21. X.1093 (struck through) X.4260 GOSHAWK 11 FRONT DUMB IRONS. Referring to N.sch.755 - if you refer to our memo. E1/G27.1.21 you will find that the… | ||
| scan0318 | Mr Royce's approved modifications to the rear cross member for the Goshawk II frames and fittings. | ||
| View original record | To DY [struck through] from DA. c. to HS. c. to IB. c. to MRC (Y DRWG) [struck through] X.4260 DA2/CB17-3-21. Hs MAR 17 1921 RECEIVED RE GOSHAWK II - FRAMES & FITTINGS.… | ||
| scan0319 | The positioning of the No. 2 frame rear cross member and spare wheel on the 'Goshawk II' model. | ||
| View original record | To E.V. from E. Copy to Cl. HS. X4260 E3/03/5/21. RECEIVED X4260 X4085 X4266 RE 'GOSHAWK II'. RE NO.2 FRAME REAR CROSS MEMBER AND SPARE WHEEL POSITION. On drawings Lec.1369, 1376, and 1378 the second… | ||
| scan0320 | Mr. Royce's design feedback on the Goshawk 11 rear engine support. | ||
| View original record | X4260 To BY. from E. c. to CJ c. to Wor. c. to Da. c. to E.O. E2/G26.5.21. X.4260 - GOSHAWK 11 - REAR ENGINE SUPPORT. X'4360 In reply to your memo BY2/P13.5.21, would you kindly note the following… | ||
| scan0321 | Interview with John Thompson Motor Pressings Ltd. regarding the production of 'Goshawk 11' side members. | ||
| View original record | 100 T; (S H. 798, 10-12-30) G. 2047 X4260 Copy for HS. FO 9 SEP 1932 WD/Jun.9.32. By. from Wd. RECEIVED X4260 "Goshawk 11" - Side Members to blueprint F.50,000/1. At the interview which we had with… | ||
| scan0322 | Cost comparison and proposal for producing side members for the 'Goshawk 11' frame. | ||
| View original record | F.R. amc (to T.)(S.H.C.988. 22/2/21.) Bm. 59887S. - 2 - Wd3/NJS.9.21. those for producing Side Members for "Goshawk 11" might cost anything from £1,500 to £2,000, and this would have to be taken into… | ||
| scan0323 | Selection of steel material for Goshawk 11 frames. | ||
| View original record | To Hs. from R. c. to CJ. c. to Wor. c. to Wd. c. to BY. c. to Da. X4260 R7/G12.10.21. X.4260 - RE GOSHAWK 11.FRAMES. X.2628 These frames should be on order, but I am not clear yet that we have settled… | ||
| scan0324 | Revised method for attaching the front dumb iron for the Goshawk 11 and requesting an opinion from the Tool Dept. | ||
| View original record | To Da. from E. c. to CJ. c. to Wor. c. to Hs. c. to BY. c. toWS. X4260 E2/G19.11.21. GOSHAWK 11 - REVISED FRONT DUMB IRON. X.4260. We send you herewith drawing LeC.1487 shewing modified method of… | ||
| scan0325 | The results of a bump test on a Goshawk 11 chassis which resulted in a broken frame. | ||
| View original record | R.R. 285s (100 T) (S.H. 798, 10-12-30) G. 2948 X4260 To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. c. to EP. c. to Wor. Hs2/LG2.12.21. BUMP TEST ON GOSHAWK 11. CHASSIS. X4268 (struck through)… | ||
| scan0326 | Results of a bump test on a Goshawk 11 chassis frame, noting bending and cracking failures. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. c. to EP. c. to Wor. X4260 Hsl/LG6.12.21. BUMP TEST ON GOSHAWK 11. CHASSIS. X4260 We have checked up the Goshawk Frame which was running on the… | ||
| scan0327 | The Goshawk 11 bumping test detailing a cracked radiator fixing gusset plate. | ||
| View original record | To R. from Hs. c. to CJ. c. to K. c. to Ds. c. to BY. c. to EP. c. to Wor. Handwritten: X4260 X X4268 X4260 (struck through) X4240 Typed: Hsl/LG7.12.21. GOSHAWK 11. BUMPING TEST Fixing for Radiator.… | ||
| scan0328 | Goshawk 11 chassis bump test failure, attributing it to material quality and torsion, and recommending increased frame thickness. | ||
| View original record | Hs. from R. c. to BY½ c. to H1. c. to CJ. X4260 R4/M9.12.21. BUMP TEST ON GOSHAWK 11. CHASSIS. X.4260 X.4219 XL268 In reply to your Hs2/LG2.12.21., the broken and sagged frame suggest materials have… | ||
| scan0329 | Analysis of frame and spring breakage on Goshawk models during bump tests, proposing to thicken the frame metal as a solution. | ||
| View original record | To HS. from R. C. to HD. EVC. HCT. ER. X4260 RG/13.12.21. re Frames - Goshawk etc. X4260 Regarding the breakage on the bump test I have come to the conclusion that the torsional strength of the… | ||
| scan0330 | Bump test on a Goshawk 11 frame, which failed twice at different points. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to BY. c. to Da. c. to EP. c. to Wor. X4260 Hs2/LG28.12.21. BUMP TEST - GOSHAWK 11. X4260 ~~X4268~~ We have been bumping the front of the "Goshawk" with a frame… | ||
| scan0331 | Extract discussing the pressing of side channels for frames, suggesting material thickness and perforation for sports chassis. | ||
| View original record | X.4260 Extract from R7/M30.12.21 X.4219 (14) FRAMES. X.4260. With regard to the pressing of the side channels, I am quite agreeable to dealing with Thomsons' or anybody else that suits us. I suggested… | ||
| scan0332 | Goshawk radiator fixing with set-up springs, including instructions on frame riveting and the design of gusset plates. | ||
| View original record | To Da. from E. c. to CJ. c. to Wor. c. to EY. c. to Hs. X.4260 E1/M4.1.22. X.4240 X.4260 - GOSHAWK RADIATOR FIXING WITH SET-UP SPRINGS. We send you herewith drawing No.LeC.1512 shewing the above.… | ||
| scan0333 | Quality of riveting on Goshawk frames for an upcoming Bump Test. | ||
| View original record | Wor. from Hs. c. to BY. X4260 Hsl/LG9.1.22. RIVETING GOSHAWK FRAMES. X4260 The latest chassis we are getting ready for the Bump Test, we have had the dumb irons riveted in by Mr. Probert. We do not… | ||
| scan0334 | Suggestion to lengthen the Goshawk 11 front dumb iron attachment to the frame. | ||
| View original record | To BY. from E. c. to CJ. c. to Wor. c. to Hs. c. to Da. X.4260 E3/M10.1.22. GOSHAWK 11. FRONT DUMB IRON. X.4260. With reference to your suggestion concerning the above that the attachment of the dumb… | ||
| scan0335 | Request for the inspection of newly received Goshawk Side Members made from Nickel Steel. | ||
| View original record | X4260 Royce [crossed out] Works [crossed out] Hs. Mr. Cox (Inspection Dept.) Wd/AW1/W14122. RECEIVED HS JAN 16 1922 14th Jan.1922. Please note we have now received 3 pairs of Goshawk Side Members… | ||
| scan0336 | Bump tests of riveted versus bolted front dumb irons, recommending the use of bolts for safety. | ||
| View original record | X.4260 Extract from Hsl/LG23.1.22. X.4219 Front Dumb Irons. X.4260. The last set of dumb irons we have been testing on the bump test were riveted instead of bolted. We have had considerable trouble… | ||
| scan0337 | Drawings for a longer front dumb iron fixing for the Goshawk 11 model. | ||
| View original record | To Da. from E. c. to CJ. c. to Wor. c. to By. c. to Hs. X4260 E1/M26.1.22. GOSHAWK 11. LONGER FRONT DUMB IRON FIXING. X.4260. We send you herewith drawings Nos. LeC.1524 and 1525 dealing with the… | ||
| scan0338 | Mr. Royce's decision on standardizing bolt schemes, specifically using a taper bush. | ||
| View original record | CONTD:- -2- enabling a single bolt to be used. You may very likely find it possible to adapt this to existing side channels. It was not thought that a taper bolt alone could be got a tight fit in the… | ||
| scan0339 | Drawing No.LeC.1528 for a parallel front dumb iron fixing on the Goshawk 11. | ||
| View original record | To Da. from E. c. to BJ. c. to Wor. c. to BY. c. to Hs. X4260 GOSHAWK 11. E2/M28.1.22. PARALLEL FRONT DUMB IRON FIXING. X.4260 We send you herewith drawing No.LeC.1528 shewing the above. In this… | ||
| scan0340 | Blueprint for a Goshawk 11 dumb iron, which has been made 30% longer and includes a comparison to a Fiat part. | ||
| View original record | X.4260. Hs.(Le Canadel) from E. E2/M11.4.22. GOSHAWK 11. DUMB IRON X.4260. We send you herewith a blue print shewing the dumb iron which has been made 30% longer. The drawing also gives an… | ||
| scan0341 | Drawing for a longer Goshawk 11 front dumb iron, retaining the bolting scheme due to riveting issues. | ||
| View original record | To Da. from E. c. to CJ. c. to Wor. c. to BY. c. to Hs. Y4260 E1/M27.4.22. GOSHAWK 11. FRONT DUMB IRON. X.4260. We send you herewith drawing No. LeC.1559 shewing a dumb iron 15% longer than LeC.1525,… | ||
| scan0342 | Design of the Goshawk 11 dumb iron, using larger bolts and rivets. | ||
| View original record | X4260 Da. from E. c. to CJ. Wor. c. to BY. Hs. EP. E1/M10.5.22. GOSHAWK 11. DUMB IRON X.4260. We send you herewith drawing No. LeC.1570 shewing Goshawk 11. dumb iron 15% longer than LeC.1525 as… | ||
| scan0343 | Mr. Royce's conclusions on different methods for fixing the Goshawk 11 front dumb iron. | ||
| View original record | X.4260. To Da. from E. c. to CJ. c. to Wor. c. to BY. c. to Hs. E5/MI 8.5.22. GOSHAWK 11. FRONT DUMB IRON. X.4260. With reference to the above, on consideration of the last scheme made, Mr. Royce has… | ||
| scan0344 | Proposed schemes N.sch.1288 and N.sch.1292 for strengthening the Goshawk front cross member. | ||
| View original record | X4260 To BY. from Da. c. to CJ. c. to Wor. c. to Hs. Da7/M25.5.22. GOSHAWK - RE FRONT CROSS MEMBER. [REDACTED] X4260 We send herewith N.sch.1288 shewing the strengthened cross member flange. It is… | ||
| scan0345 | Design changes and repairability for the Goshawk front cross member. | ||
| View original record | To BY. from R. c. to CJ. Wor. c. to Hs. EP. c. to Hy. X4260 R2/M26.5.22. GOSHAWK - FRONT CROSS MEMBER X4260 We have sent a design in which the flange, still made from a pressing, is increased in… | ||
| scan0346 | Goshawk II frames and fittings, agreeing to soften parts and discussing production issues due to axle troubles and the lack of a standardisation sheet. | ||
| View original record | To BY. from Wor. c. to Hs. X4260 Wor6/M4/1/23. Goshawk II Frames & Fittings, Dumb Irons & Shackles. -------------------------------------------------- With reference to your BY1/P3/1/23, I quite agree… | ||
| scan0347 | Chassis frame deflections on a 20 HP model and proposing experiments to improve rigidity. | ||
| View original record | 44260 To LHS. for HO. from DA/EV. c. to PN. HS. BY. c. to C. SG. DA/EV1/M28.8.23. RE. 20 HP. CHASSIS FRAME DEFLECTIONS X.3730 X.4260 We saw the Barker phaeton body which apparently suffered due to… | ||
| scan0348 | The requirement for rear wing stays and fittings for a 5-Goshawk-11 car at Bromley. | ||
| View original record | To BY. from Da/EV. c. to HS. X4260 DA/EV2/M14.9.23. RE. 5-GOSHAWK-11 AT BROMLEY. X. 4260 X. 3730 Please note that Messrs. Young & Co. require two rear wing stays and fittings for this car, and are… | ||
| scan0349 | Confirming the accuracy of figures relating to G11 frame deflection. | ||
| View original record | Y4260 Hs from RHC. RHC4/LS20.9.23. RE - G11 FRAME DEFLECTION. We have carefully gone over Figures for G11 Frame Deflection, and figures shown on chart are correct, the readings represents actual… | ||
| scan0350 | Blueprint showing frame deflection measurements for a 20-HP chassis, with and without tie-rods. | ||
| View original record | - OFF-SIDE. - TOTAL DEFLECTION - WITH TIE RODS. A .100, B .100, C .232, D .260, E .385, F .420, G .480, H .487, I .490, J .495, K .500, L .325, M .350, N .220 TOTAL DEFLECTION - WITH TIE ROD PINS… | ||
| scan0351 | Clarifying figures on the Goshawk II frame deflection chart. | ||
| View original record | To Da. from Hs. Y4260 Hs6/LG20.9.23. GOSHAWK ll. FRAME DEFLECTION. Y4260 With reference to the Chart of Frame Deflections with and without tie rods which I left at WW. We have gone over the figures… | ||
| scan0352 | Frame deflections on the Goshawk II, questioning measurements and proposing modifications. | ||
| View original record | X.4260 To Hs. from Da. DA2/M20. 9.23. RE. FRAME DEFLECTIONS X.4260. With reference to the diagram shewing frame deflections on Goshawk II. with and without tie-bars, we should like you to confirm the… | ||
| scan0353 | Blueprint showing tests on a 20 HP chassis frame with and without tie-rods. | ||
| View original record | X4260 W/S. C/Hn. from Hs. Hs3/LG22. 9.23. RE. 20 HP. CHASSIS FRAME. Referring to your Hn24/MH20.9.23 attached. We attach blue-print which shows tests made on 20 HP. Frame with and without tie-rods.… | ||
| scan0354 | Frame deflection and body mounting on the 20 HP and Goshawk 11 chassis. | ||
| View original record | 4260 To LHS. from DA/EV. c. to CJ. HS. BY. DA/EV1/M29.9.23. RE. FRAME DEFLECTION & BODY MOUNTING - X.3730 GOSHAWK 11. X.3729.X.4260 Derby have fitted up a 20 HP. chassis with tie-bars similar in… | ||
| scan0355 | Improvements to car body stiffness, scuttle insulation, and isolation from engine vibration. | ||
| View original record | contd:- -2- beam is 9 times that of the wooden runner as is now used. Should however this beam be not stiff enough we can easily increase its stiffness 100% with only slight increase in weight. By… | ||
| scan0356 | Load distribution for experiments on Goshawk tie-bars. | ||
| View original record | X.4260 To BY. from DA/EV c. to HS. Da/EV3/M1.10.23. EXPERIMENTS ON GOSHAWK TIE-BARS. X.4260 We do not think the loading used in the experiments (a drawing of which Hs. left with us) is quite a… | ||
| scan0357 | Measuring the frame deflection on a 20 HP frame with a static load. | ||
| View original record | R.R. 493 (40 H) (SL 42 12-7-23). J.H., D. X4260 EXPERIMENTAL REPORT. COPIES TO: R.C.J BJ. WOR. By E. Da. EP. P.N. OY. Expl. No. X.4228 REF. Hs3/LG10.10.23. OBJECT OF TEST. To measure frame deflection… | ||
| scan0358 | Diagram and chart showing frame deflections under load with different tie rod and stiffener configurations for a 20 HP chassis. | ||
| View original record | F.52766 TOTAL LOAD 5200 lbs DISTRIBUTED THUS:- 400lbs | 400lbs | 400lbs | 500lbs | 500lbs | 500lbs | 500lbs | 500lbs | 300lbs | 300lbs 1 — OR — 4. 2 — ORIGINAL TIE RODS. 3 — OR — 5. VIEW OF FRAME… | ||
| scan0359 | Unexpected deflection curves in Goshawk tie-bars and suggesting further tests. | ||
| View original record | To Hs. from DA/EV. X.4260 DA/EV3/M12.10.23. RE. GOSHAWK TIE-BARS. X.4260 We thank you for your Hs3/LG10.10.23., with blueprint F.52766. The graphs of deflection provided are generally instructive but… | ||
| scan0360 | Tests at Hooper's Works investigating body rattles and frame stiffness on 40/50 and Goshawk models, detailing defects and proposed redesigns. | ||
| View original record | To LHS. from Da/Ev. c. to EY. Hs. X4260 Da/Ev1/M12.10.23. RE. BODY RATTLES, AND FRAME STIFFNESS. X.4260 X.3730 X.3729 We visited Messrs. Hooper's Works on Wednesday last, and made some tests on both… | ||
| scan0361 | Proposals for preventing frame twisting and improving body mounting rigidity on car chassis. | ||
| View original record | contd:- -2- distance of about 4" and the bolt hole for the body which we propose to drill ourselves will be as near to the frame as possible so as to give a good control to the runner, preventing it… | ||
| scan0362 | Agreement to increase the size of Goshawk cross members. | ||
| View original record | contd:- -3- should it be found that they are necessary. DA/EV. R. has also agreed that Goshawk cross members are slightly smaller pro rata the 40/50. and we propose to increase them all as soon as the… | ||
| scan0363 | New frame brackets and improvements for the Goshawk chassis frame. | ||
| View original record | X4260 To BY. from R. HS. c. to CJ. BJ. LHS. R5/M13.10.23. RE. GOSHAWK FRAME. X.4260. X.4604. We have in hand new frame brackets for the Goshawk chassis, for carrying the body. The present frame… | ||
| scan0364 | Revised scheme for 20 HP body stiffeners, including modifications to cross members and supports. | ||
| View original record | 44260 To BY. from DA. c. to CJ. HS. DAL/M31.10.23. RE. 20 HP. BODY STIFFENERS. X.4260 X.3730 X.3522 We send you herewith N.sch.1490 shewing a revised scheme of body stiffeners superseding N.sch.1461.… | ||
| scan0365 | Required chassis modifications for the Goshawk 11, including adding and enlarging cross members. | ||
| View original record | Hs. from R. BY. c. to CJ. Wor. c. to Rg. Y4260 R7/M21.11.23. GOSHAWK 11. X.3522 X.4260. With reference to Goshawk 11. it is imperative that this chassis has additional cross members, and some of the… | ||
| scan0366 | Modifications for a 20 HP body underframe suspension and dashboard. | ||
| View original record | To EY. from DA/EV. c. to CJ. c. to Hs. c. to LHS. c. to C. X4260 DA/EV1/MS.12.23. RE. 20 HP. BODY UNDERFRAME SUSPENSION. X.4613 X4270 X.3730 X4260 We send herewith N. sch.1491 shewing the construction… | ||
| scan0367 | Modifications to the Goshawks car frame to increase stiffness and considering changes to its length. | ||
| View original record | X.4280 Extract from:- R1/M1.1.24. R1/M1.1.24. RE GOSHAWKS - X.4219 FRAME. You will remember that I had decided that Mr. Everndon under Mr. Day should make a new drawing of this, increasing its depth… | ||
| scan0368 | Wheelbase recommendations for the Goshawk, 40/50, and 20 HP chassis. | ||
| View original record | /4260 To RG. E. DA. } FROM R. AT LE CANADEL. R1/M7.1.24. c. to CJ. BJ. WOR. BY. HS. EP. PN. RE. WHEELBASE - 40/50 AND 20 HP. X.4260. X.3440 We made occasion to bring the Goshawk up to the villa for… | ||
| scan0369 | Meeting notes concerning the steering lock and front spring design for the EAC.3 chassis. | ||
| View original record | Y4260 To CJ. & R. c. to RG. E. DA. c. to Wor (from Rg.) } c. to BY { " " } c. to Hs. { " " } E1/M10.1.24. VISIT OF RG. AND HS. TO WW. TUESDAY 8.1.24. X.9940 X.4247 X.4260 X.9770 The following notes… | ||
| scan0370 | 4-wheel brake testing, 20 HP frame length modifications, a new side lever gearbox, and brake patents. | ||
| View original record | contd:- -2- test should be fitted with the new speedometer drive and the best 4 wheel brakes we know of at the time, but it should not wait for any further alterations. It was further suggested that… | ||
| scan0371 | Excessive chassis frame deflection on a 20 HP Landaulet and proposing to fit tie-bars as a solution. | ||
| View original record | To Hs. from DA/EV. c. to LHS. +4260 DA/EV1/M8.5.24. RE. 20 HP. LANDAULET ON SPECIAL BODY FRAME AT BARKERS. X.3730. X.4260. The body is now mounted on this chassis and we are experiencing excessive… | ||
| scan0372 | Chassis frame deflection measurements and calculations for the Goshawk 11 model. | ||
| View original record | Y4260 To BY. from Da. COPY. DA2/M13.5.24. RE. GOSHAWK 11. CHASSIS FRAME DEFLECTION. X.4260. You sent us last Oct. F.52766, shewing the various particulars concerning the deflection of Goshawk frame as… | ||
| scan0373 | Request to repeat experiments with specific load conditions for a car's body underframe suspension. | ||
| View original record | contd :- -2- experiments by repeating them if you have the apparatus still available. We would like the load to be that of a 39 cwt. car, the loads dis-tributed as nearly as possible to approximately… | ||
| scan0374 | Preparation and fitting of tie bars for a 20 HP Landaulet with a special body frame. | ||
| View original record | To DA/EV. from Hs. 4260 Hs7/LG19.5.24. 20 HP. LANDAULET - SPECIAL BODY FRAME. X4260 X3780 We are preparing a set of tie bars similar to those fitted to 5-G-11. When they are completed, we will send a… | ||
| scan0375 | Fitting tie-bars to a 20 HP Landaulet special body frame. | ||
| View original record | X.3730 44260 To HS. from DA/EV. c. to LHS. DA/EV1/M22.5.24. RE. 20 HP. LANDAULET SPECIAL BODY FRAME. X.3730. We thank you for your Hs7/LG19.5.24. We shall be glad to have tie-bars fitted to this… | ||
| scan0376 | Inconsistent results from a chassis frame deflection test and planning for future tests. | ||
| View original record | 44260 To DA. from Hs. Hsll/LG27.5.24. CHASSIS FRAME DEFLECTION. 5,200 was the total load put on to the Frame so that there was half this on each side member. This load was arrived at by adding weight… | ||
| scan0377 | Arranging for fitters to visit Messrs. Barkers to fit tie bars on a 20 HP Landaulet Special Body Frame. | ||
| View original record | To DA/EV. from RHC. Y4260 Y3730 RHC1/LG29.5.24. 20 HP. LANDAULET SPECIAL BODY FRAME. Referring to your DA/EV1/M22.5.24. Our Fitters will be going to Messrs. Barkers on Monday next the 2nd. June to fit… | ||
| scan0378 | Standardisation of Goshawk tie-rods and the trial of a new deeper frame. | ||
| View original record | X.4260 To CJ. from R. c. to BJ. Wor. BY HS. EP. PN. R3/M20.6.24. RE. GOSHAWK TIE-RODS X.4260. The tie-rods should be made standard. EV. says that although they do not shew a wonderful advantage in… | ||
| scan0379 | Modifications to the 20 HP chassis prints to accommodate the fitting of tool boxes. | ||
| View original record | X.4085 X4260 To BY. from DA/EV. c. to LHS½ HS. DA/EV2/M21.6.24. RE. 20 HP. CHASSIS PRINTS - TOOL BOXES. X.4085. X4260 We thank you for your BY/C2/H21.5.24. and suggest that since we are prepared to… | ||
| scan0380 | Standardisation of frame ties for the Goshawk 11. | ||
| View original record | X.4260. To HS. BY. } FROM DA. DA3/M21.6.24. GOSHAWK 11. FRAME. X.4260. Mr. Royce wishes to standardise the frame ties for G.11. immediately. These have been fitted to 5-G-11 and 68-GF. Before going… | ||
| scan0381 | Sending of blueprints for the Goshawk II frame, specifically regarding tie rods and a frame stiffener. | ||
| View original record | Y4260 c. Hs. BY/C27/H. 24. 6. 24. GOSHAWK II. FRAME. As requested in Da3/M. 21. 6. 24. we send you herewith blueprint of Drawing No. F.52766 which was prepared in connection with the experiments… | ||
| scan0382 | Design change to the Goshawk III frame. | ||
| View original record | X.4260 To Hs. from R. c. to CJ. BJ. Wor. RG. PN. BY. DA. E. H. EP. RE. GOSHAWK. R3/M27.6.24. It was intended in Goshawk 111. to have a deeper frame. We however have decided to keep the frame the same… | ||
| scan0383 | Request for the weight of tie rods and their fixings for a 20 HP experimental landaulet chassis GF 68. | ||
| View original record | S to W Cresswell Hall +4260 23539 4 7-24 20 HP. GF 68 3226 Experimental landaulet with sub-frame. As tie rods to chassis have been fitted since chassis weights were taken, would you be good enough to… | ||
| scan0384 | Standardisation of chassis parts, specifically Frame Tie Rods. | ||
| View original record | RR 755 (10H) (SL391 2-11-23) MP 281297 Handwritten top left: V/9260 Handwritten top right: Completed 7/7/24 STANDARDISATION of CHASSIS PARTS. Date 26.6.24. Description of Parts. FRAME TIE RODS‡… | ||
| scan0385 | Arranging the demonstration of a 20 HP Landaulet (GF.68) to Mr. Royce following modifications. | ||
| View original record | To LHS. from DA/EV. c. to HS. BY. SP. H9260 DA/EV5/M14.7.24. RE. 20 HP. LANDAULET ON BODY FRAME. GF.68. X.3730 X.4260. EV. will be at Conduit Street on Saturday morning the 26th.inst., and would like… | ||
| scan0386 | The performance, advantages, and issues of the Experimental Barker Landaulet GF.68. | ||
| View original record | To C.J. B.J. H.S.) E.Y.) FROM DA/EV. c. to R. 4260 DA/EV1/M9. 8.24. RE. EXPERIMENTAL LANDAULET - GF.68. X.3730 X.4219 X.4260 This is the Barker Landaulet built on the RR. body frame. EV. drove this… | ||
| scan0387 | Justification for fitting a frame stiffener to the 20 HP chassis. | ||
| View original record | X.4260. To BY. from DA. c. to HS. Dal/M1. 9.24. RE. 20 HP. CHASSIS FRAME TIES. X.4260. We thank you for your BY/C8/H29.8.24. We are very doubtful about the frame stiffener. We understand that this was… | ||
| scan0388 | Query about sending a 20 HP Landaulet with an experimental frame for testing. | ||
| View original record | X4260 S/W Hs. C18/C5.9.24. Re 20 h.p. Landaulet with Experimental Frame. I understand from Ev. that you would like to have this car to carry out certain experiments with. Will/you please let me know… | ||
| scan0389 | Request to send a 20 HP Landaulet with an experimental frame to Derby for testing after the Sales Dept has finished with it. | ||
| View original record | To C. from Hs. X4260 Hs3/LG8.9.24. 20 HP. LANDAULET WITH EXPERIMENTAL FRAME. If the Sales Dept. have obtained all the information they require on this body for the time being, we could usefully carry… | ||
| scan0390 | 20 HP Landaulet with an experimental frame requiring body defect rectification before being sent to Derby. | ||
| View original record | S/W Hs. X4260 C4/C12.9.24. Re 20 h.p.Landaulet with experimental frame...........Hs3/LG8.9.24. We will send this up to Derby next week, as soon as we have put right certain body defects. C. | ||
| scan0391 | Testing and weighing of an experimental landaulet on chassis GF-68. | ||
| View original record | S/W. HS. T M W 44260 C/Hn20/DB29-9-24. Chassis GF-68. This is the experimental landaulet with a special sub-frame and which is now in your hands for the usual test. We think it would be a good plan to… | ||
| scan0392 | Requesting a 20 HP experimental landaulet for further testing and an opportunity to critique a new design. | ||
| View original record | To Hs. from BJ. BJ13/H15.10.24. X 4260 CONFIDENTIAL. 20 H.P. Experimental Landaulet. We should like to have the 20 h.p. experimental landaulet with sub sunk frame for the body, to make further tests,… | ||
| scan0393 | Successful testing of a sub-frame on a 20 HP Landaulet and arrangements for a demonstration. | ||
| View original record | X4260 To BJ. from Hs. Hs3/LG17.10.24. 20 HP. EXPL: LANDAULET. X4260 X4219 At the present time we are carrying out tests on a 20 HP. Landaulet fitted with a sub-frame. If you wish, of course, we can… | ||
| scan0394 | Fitting a 20 HP car with a sub-frame to reduce body and axle noises. | ||
| View original record | B.R. 493A (20H) (D.A. 652 20-3-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. REF: Hs1/LG18.10.24. To R. from Hs. c. to CJ. BJ. c. to E. DA. c. to BY. Wor. Handwritten notes: X4260 X181 X3730 X8830 XL4260… | ||
| scan0395 | Requesting a test drive of a 20 HP Experimental Landaulet after alterations are made. | ||
| View original record | X4260 To Hs. from BJ. BJ1/H20.10.24. Re 20 H.P. Experimental Landaulet. Hs3/LG17.10.24. We think under the circumstances it would probably be better for us to try the 20 H.P. landaulet with special… | ||
| scan0396 | Travel arrangements to Derby to view a car fitted with a Bradburn & Wedge system for the body under-frame. | ||
| View original record | Ev. Copy to Hs. X4260 LHS.2/EBN24.10.24 Re. BODY UNDER-FRAME Thursday, the 30th inst. will be the most suitable date for me to come down to Derby, and I shall travel by the 10.25 a.m. train from St.… | ||
| scan0397 | Telegram from Herbert Scott to Hives regarding a recommendation for the 'Bradley System' for a noiseless car, after being unable to attend a meeting due to illness. | ||
| View original record | X4260 No. of Telegram: 0175 Office Stamp: DERBY 30 OC 24 Handed in: 10.54 EDGWARE RD Received here at: 11.29 M. Words: 38 HIVES ROLLS ROYCE. DERBY = UNFORTUNATELY PREVENTED COMING DERBY OWING SEVERE… | ||
| scan0398 | Letter regarding a missed demonstration of a body under-frame and scheduling a new visit to Derby. | ||
| View original record | Hs. Copy to B.J. " " Ev. X4260 LHS.1/EBN31.10.24 Re. BODY UNDER-FRAME I was very disappointed owing to illness at being prevented from attending your demonstration yesterday, which from all accounts… | ||
| scan0399 | Special visit to test the method of carrying a car body on a separate under-frame. | ||
| View original record | CJ BJ LHS C Sg HO Ev Hs 44260 C9/C1.11.24. REPORT OF SPECIAL VISIT TO DERBY BY THE COACHWORK SUB-COMMITTEE ON OCTOBER 30TH TO TEST THE METHOD OF CARRYING THE BODY OF A CAR ON A SEPARATE UNDER-FRAME.… | ||
| scan0400 | Committee report on car swaying, booming, and suspension schemes including a new Bradburn & Wedge device. | ||
| View original record | -2- frome, apart from having the advantage referred to above, also has another advantage, namely it will enable the sub-frame to be delivered to the Coachbuilders in advance of the receipt of the… | ||
| scan0401 | Telegram from Herbert Scott to Hives arranging a demonstration of an under-frame body in Derby. | ||
| View original record | POST OFFICE TELEGRAPHS (1156) EM2528 15,000M 21/8/23 R.&Co.Ltd. E1501. Recd. from: KS By: R. Prefix: C Handed in at: 11/35 M. Office of Origin and Service Instructions: London R. Words: 28 Received… | ||
| scan0402 | Arranging a visit to Derby to see a demonstration of a body under-frame. | ||
| View original record | S/W (Hs.) V4260 LHS.3/EBN5.11.24 Re BODY UNDER-FRAME Sp. and I will arrive at Derby 12.55 p.m. to-morrow (Thursday). Will you please arrange to have us met at the Station - and we should like to see a… | ||
| scan0403 | Suggesting experiments to determine underframe vibration and horizontal bending to inform the design of the EAC.2 frame. | ||
| View original record | X.4260 To HS. from DA/EV. DA/EV5/M18.11.24. Further to our note of yesterday re. GF.68 underframe, we have made suggestions for determining whether the forward projecting ends of the underframe… | ||
| scan0404 | Sub-frame tests with a Barker Landaulet body on a 20 HP chassis. | ||
| View original record | R.R. 493 (40 H) (SL 42 12-7-23). J.H. D. x4260 EXPERIMENTAL REPORT. COPIES TO: R.C.J. BJ. WOR. By. E. Da. EP. PN. OY. Expl. No. 4260 3730 REF Hs2/LG17.12.24. OBJECT OF TEST. Tests with Barker… | ||
| scan0405 | Alterations to a body sub-frame on a 20 HP car (GF.68) to investigate body noise. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. REF Hs/TMW/LG15.12.24. REPORT ON BODY SUB-FRAME FITTED TO GF.68. 20 HP. On receipt of the above car from London fitted with a… | ||
| scan0406 | Vehicle sub-frame principles and their effect on ride comfort and body movement. | ||
| View original record | R.R. 493A (50M) (D.B. 175 25-9-24) J.H.D. -2- REF: He/TMW/L.G.15.12.24. EXPERIMENTAL REPORT. Expl. No. sets and at low speed full throttle. The general impression, however, of comfort, tranquility,… | ||
| scan0407 | Dash and scuttle frame semi-isolation scheme to prevent movement and noise. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. -3- EXPERIMENTAL REPORT. Expl. No. REF: Hs/TMW/LG15.12.24. rapidly. the same deflection at the front takes place. We therefore tried out the dash… | ||
| scan0408 | 10,000-mile sub-frame test on a 20 HP car. | ||
| View original record | To CJ. from Hs. X4260 Hsl/LG19.12.24. RE. 20 HP. SUB-FRAME. X4260 X4086 With reference to your instructions that a 20 HP. car fitted with a sub-frame should be tested for 10,000 miles. We are… | ||
| scan0409 | Arrangements for a 10,000-mile road test of a 20 HP car's sub-frame in France. | ||
| View original record | To CJ. from Hs. X4260 Hsl/LG19.12.24. RE. 20 HP. SUB-FRAME. With reference to your instructions that a 20 HP. car fitted with a sub-frame should be tested for 10,000 miles. We are arranging to send a… | ||
| scan0410 | Secret memo regarding the testing plans for a new sub-frame on 'W' series and 20 HP cars. | ||
| View original record | +4260 To CJ. from Hs. S E C R E T. Hs8/LG31.12.24. TESTS ON SUB FRAME. +8380 EAC. 'W' series will be fitted with the sub frame. These cars fitted with the subframe will run the usual 10,000 miles… | ||
| scan0411 | Requesting a sketch for the cross bracing on a 20 HP frame and confirming a change to the subframe support. | ||
| View original record | To DA/EV. from Hs. c. to R. c. to BY. +4260 Hsl/LG2.1.25. 20 HP. FRAME. X4260 We should be glad if you will supply a sketch illustrating how you wish the cross bracing on the 20 HP. frame to be… | ||
| scan0412 | Request from coachbuilder Barker's to fit a new locking device to an experimental sub-frame Landaulette. | ||
| View original record | S/W. (Hs). X4260 C/Hn14/MH5.1.25. re: GF-68. Experimental Sub-Frame Landaulette. Barker's are asking whether we can let them have this car so that they may fit a new type Locking Device to the sliding… | ||
| scan0413 | Fault with the body subframe on a Goshawk model due to the front supports being too far back. | ||
| View original record | 44260 To DA. HS. } FROM R. c. to CJ. BJ. c. to LHS. RG. E. R2/M10.1.25. GOSHAWK WITH BODY SUBFRAME. X.4260 X.3730 There seems little doubt but that the fault complained of in this is chiefly due to… | ||
| scan0414 | Stiffness of the 20 HP frame. | ||
| View original record | 4260 To DA } FROM R. HS } c. to CJ. BJ. c. to RG. BY. E. R1/M13.1.25. RE. 20 HP. FRAME. X.3730 X.4260 Though we know that everything can be better at the expenditure of money and weight, and I agree… | ||
| scan0415 | Front spring problem on the 20 HP model and a proposal to lengthen the frame. | ||
| View original record | +4260 To Wor. from Hs. Hs3/LG15.1.25. GOSHAWK +4261 With reference to the attached letter from BJ. It was mentioned by me that R. had considered lengthening the front springs of the 20 HP. and that if… | ||
| scan0416 | Requesting a 20 HP underframe for a trial in London. | ||
| View original record | To Hs. from BJ. BJ5/H2.2.25. X4260 20 H.P. UNDER FRAME. Please let me know as soon as there is a 20 h.p. underframe suitable for me to try in London. B.J. | ||
| scan0417 | The radical modification and completion timeline for the 20 HP subframe. | ||
| View original record | Y4260 To BJ. from Hs. Hs6/LG9. 2. 25. RE. 20 HP. SUBFRAME. Answering your BJ5/H2. 2. 25. The design of subframe on the 20 HP. is being radically modified. The 20 HP. subframe will not be completed… | ||
| scan0418 | Requesting the weight of tie-rods for a 20 HP GF-68 Landaulet with sub-frame to determine the coachwork weight. | ||
| View original record | X4260 S/W (Hs.) HO.1/EBN14.11.24 20 H.P. GF-68 - LANDAULET WITH SUB-FRAME With reference to your memo. Hs.5/LG7.11.24 in which you kindly gave the weights of the complete car - May we ask if you would… | ||
| scan0419 | Preliminary frame distortion tests conducted on a 20 HP chassis bumper. | ||
| View original record | X4260 To Hs. from Hs/RB. Hs/RB/LG7.4.25. 20 HP. CHASSIS. FRAME DISTORTION TESTS ON BUMPER. 2" cams at 180°C We have made some preliminary tests on frame distortion, the apparatus used being as follows… | ||
| scan0420 | Analysis of chassis frame warp and distortion, including diagrams and test measurements. | ||
| View original record | -2- (a) Frame warp along its longitudinal axis - as - PLATE or (b) Frame distortion from square to rhomboid form - as - PLATE PLAN If the frame distorts as in (a) there will be some point or points… | ||
| scan0421 | Frame distortion and twist, analyzing movement between cross members with varying engine bearer tightness. | ||
| View original record | -3- This confirms that the frame distorts as in 2. (a) and proves that the direction of twist between the 2nd. and 3rd. cross members is opposite to that between the engine feet and the 2nd. cross… | ||
| scan0422 | Page with sketches and notes proposing a test for chassis frame distortion. | ||
| View original record | -4- Sketch shewing markings on plate. Dashboard & brkt. & top of side channel. 2nd. cross mem. 3rd. X member. No vertical component. These tests if not in themselves of any intrinsic value should… | ||
| scan0423 | Improvements to the side brake and change speed levers for specific chassis models with a steel body subframe. | ||
| View original record | To Hs. from R. c. to CJ. BY. c. to BJ. Wor. X4260 CHASSIS FOR STEEL BODY SUBFRAME. R1/M8. 6. 25. X.4260 X.3528 X.3440 X.3462 Before Xmas I worked at the drawings for the side brake and change speed… | ||
| scan0424 | Simplification of a spring design for side control, with a dimensioned sketch to follow. | ||
| View original record | contd :- -2- be applied to any chassis desired. I have just looked again at the design of spring for the side control and believe this can be simplified if carried out very slightly modified from the… | ||
| scan0425 | Tests on body subframes, modifications to car 9-PK, and planning for future trials. | ||
| View original record | To Hs. from DA/EV. c. to BY. C. 4260 DA/EV1/M10.6.25. RE. BODY SUBFRAMES - X.8380 X.8840 40/50 and 20 HP. X.5380 X.9770 X.4260 Thank you for your Hs2/LGS.6.25., re car 9-PK. This car is now at the… | ||
| scan0426 | Barker Cabriolet de Ville on a sub-frame for a 20 HP chassis. | ||
| View original record | to C. HS from EV. X. 4260 EV2/19.6.25. RE BARKER CABRIOLET DE VILLE ON SUB FRAME . 20 HP. CHASSIS We thank you for your C/Hn4/MH15.6.25. re the above. We have shewn the design to HS. and he agrees… | ||
| scan0427 | The delay in car body construction at Barkers, awaiting essential parts for a Goshawk chassis. | ||
| View original record | to Hs from EV. H8 4260 EV3.18-7-25- RE GOSHAWK SUB FRAME AT BARKERS. 4260 x5580 The body for this car has been allotted and the work is going ahead but we shall shortly be held up for want of the… | ||
| scan0428 | Frame distortion tests for a standard 20 HP model on a bumping rig. | ||
| View original record | R.R. 493A (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. X4260 REF: Hs4/LG30.11.25. To R. from Hs. c. to CJ. BJ. c. to DA. E. c. to BY. Wor. FRAME DISTORTION. X4268 X4260 Attached… | ||
| scan0429 | Preliminary frame distortion tests on a 20 HP chassis bumper. | ||
| View original record | Hs/RB/LG7.4.25. 20 HP. CHASSIS. FRAME DISTORTION TESTS ON BUMPER. 2" cams at 180°C. We have made some preliminary tests on frame distortion - the apparatus used being as follows :- An aluminium plate… | ||
| scan0430 | Page detailing frame warp and distortion tests on a chassis. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/RB/LG7.4.25. (a) Frame warp along its longitudinal axis - as - ALUM. PLATE. or (b) Frame distortion from square to… | ||
| scan0431 | Frame distortion, measuring twist between cross members with rear engine suspension slack and tight. | ||
| View original record | R.R. 493a (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF.Hs/RB/LG7.4.25. member there is no vertical movement, the horizontal movement registered being .300". This confirms… | ||
| scan0432 | Page on chassis frame distortion, including a sketch of markings on a plate. | ||
| View original record | R.R. 493A (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. -4- Expl. No. REF HS/RB/LG7.4.25. SKETCH SHEWING MARKINGS ON PLATE. DASHBRACKET 2ND X MEMBER 3RD X MEMBER No vertical component. These… | ||
| scan0433 | Results of long-term testing on experimental cars fitted with body subframes. | ||
| View original record | Y4260? To WOR. from Hs. Hsl/LG10.11.28. X5380 X8380 BODY SUBFRAMES. We have been running experimental cars fitted with bodies mounted on subframes for 3 1/2 years. We have had seven cars with the… | ||
| scan0434 | Special visit by the Coachwork Sub-Committee to test carrying a car body on a separate underframe. | ||
| View original record | CJ. BJ. LHS. C. SG. HO. EV. Hs. REPORT ON SPECIAL VISIT TO DERBY BY THE COACHWORK SUB-COMMITTEE ON OCT. 30TH. TO TEST THE METHOD OF CARRYING THE BODY OF A CAR ON A SEPARATE UNDERFRAME. PRESENT : SG.… | ||
| scan0435 | Committee report discussing the testing of anti-swaying and anti-booming devices, specifically the Bradburn & Wedge scheme, on two car models. | ||
| View original record | contd :- -2- and turn out the complete car in very much less time than at present. This the Daimler Co. do. This scheme has been criticised from the point of view of swaying. The car, however, was… | ||