Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Proposed hydraulic damper for the Phantom front axle to address high-speed wobble issues. | ||
| View original record | To BY. from DA. c. to CJ. Hs. +8425 DA1/M22. 8.25. PHANTOM FRONT AXLE. X. 8420 X. 8430 X. 457 X. 8425 Herewith we send N.sch.2045 shewing the proposed hydraulic damper for the front axle for use in… | ||
| scan0002 | Modification to the Phantom steering system to fix high-speed wobbles. | ||
| View original record | To BY. from DA. c. to CJ. Hs. 8425 DA1/M25.9.25. PHANTOM STEERING. X. 8430 X. 8425 Herewith we send N.sch.2054 shewing the set up spring in the cross steering tube for adding friction to the ball, and… | ||
| scan0003 | 10,000-mile test of a 'Phantom' car, focusing on wheel fittings and steering modifications. | ||
| View original record | R.R. 493A (50 H) (D.D. 31. 12-6-25) J.H.B. x8425 EXPERIMENTAL REPORT. Expt. No. REF: llg5/LG38.9.25. x3809 73940A To R. from Hs. c. to CJ. BJ. c. to RG. H. c. to DA. BY. c. to Wox. 8-EX. 10,000 MILES… | ||
| scan0004 | Standardisation of cross steering levers to enable the use of well-base rims. | ||
| View original record | RR 788 (10H) (SL391 2-11-23) MP 281297 18425 COMPLETED 10.10.25. STANDARDISATION of CHASSIS PARTS. Date 29/9/25. Description of Parts. CROSS STEERING LEVERS. Origin. To enable well-base rims to be… | ||
| scan0005 | Spring-loaded ball joints for India steering connections to prevent wobbles. | ||
| View original record | X8425 To BY. from DA. c. to BJ. Hs. DA2/M28.5.26. INDIA STEERING CONNECTIONS. X.5425 X.5450 X.8425 X.457 We send herewith Ns.ch.2201 shewing the spring loaded ball joint for the India cross steering… | ||
| scan0006 | Friction requirements and load adjustments for the cross steering tube. | ||
| View original record | To Hs. from RM. X8405 / Hs/Rm/LG28.9.26. FRICTION IN CROSS STEERING TUBE. We find that in order to provide the necessary friction in the steering for balloon tyres as fitted up on 12-EX, we require a… | ||
| scan0007 | Scheme showing the addition of friction to 'X' steering ball pins, including an enlarged ball and increased spring force. | ||
| View original record | TOTAL FRICTIONAL TORQUE (TWO ENDS) ASSUMING µ = .04 WITH 600 LB SPRING = 60 LB. INS. EXP. DEPT. REQ. 400, 500 & 600 LB. SPRINGS HERE 600LB SPRING WITH ENLARGED BALL GIVES 2/3 OF REQD FRICTION DIA. OF… | ||
| scan0008 | Drawing of a side steering tube joint for an outside pendulum lever. | ||
| View original record | NSch 2067 PLACE AS SHOWN RELATIVE TO BALL PIN TO CLEAR FRAME ON LH LOCK CL LUBRICATOR .150 SPRINGS NORMAL LOAD - 110 LBS MAXM. " - 275 " " STRESS - 70,000 " □ DIA. WIRE - .192 MEAN DIA - .708 NO EFFCT… | ||
| scan0009 | Requesting a copy of a mislaid note regarding friction requirements on steering gear ball ends. | ||
| View original record | +8425 To Hs/Rm. from DA. DA3/M30.10.26. STEERING. X.8430 X.8425 A little while ago you sent us a short note giving your final requirements as regards friction on the ball ends of the steering gear. We… | ||
| scan0010 | Friction requirements and design suggestions for the cross steering tube on a 12-EX car with balloon tyres. | ||
| View original record | To DA. from Hs/Rm. X 8425 Hs/Rm2/LGE.11.26. FRICTION IN CROSS STEERING TUBE. +7425 With reference to DA3/M30.10.26. The following is the note you request. We find that in order to provide the… | ||
| scan0011 | Steering stiffness on the 20 HP car, comparing the existing friction device with a proposed spring-loaded cross steering tube. | ||
| View original record | [Handwritten top center: X8425] To DA. from Hs/Rn. Hs/Rm1/LG3.11.26. STEERING. [Handwritten: X7425] With reference to DA1/M2.11.26. We do not consider that under any circumstances the effect of lack… | ||
| scan0012 | And calculating steering friction couples related to new friction plates and a damper. | ||
| View original record | To Hs/Rm. from DA. 48425 DA4/M4.11.26. STEERING. X.8430 X.8425 We have discovered our copy of Hs/Rm2/T21026., and apologise for having troubled you. We are not quite sure that we understand the… | ||
| scan0013 | Proposals and experiments to manage friction in a new front axle, steering pivots, and multi-plate clutch. | ||
| View original record | To Hs/Rm. from DA. X8425 DA1/M5.11.26. FRICTION IN NEW FRONT AXLE. X.8300 X.8430 X.8420 X.8425 X.235 With reference to your porposal to increase the friction on the ball ends, increasing the dia. of… | ||
| scan0014 | Design objectives and limitations for steering tube ball ends, focusing on safety, shocks, and damping. | ||
| View original record | To Hs. ) DA. ) FROM R. BY. ) c. to BJ. E. Y8425. R3/M11.11.26. STEERING 20 HP. & 40/50. X.8451 X.5430 BUFFER SPRINGS ETC. X.8430 X.8425 Regarding the longitudinal tube ball end we now have involved… | ||
| scan0015 | The effect of lubrication on the ball joints of a loaded cross steering tube. | ||
| View original record | To H.S. Copy & file X8425 16-11-26 The effect of lubrication on ball joints of loaded cross steering tube. First Test. ball joints lubricated load at periphery of steering wheel 3.5 lbs. 2nd Test.… | ||
| scan0016 | From DA to Hs. regarding the unsatisfactory steering on Mr. Royce's car 7-EX. | ||
| View original record | To Hs. from DA. X8425 DA3/M20.11.26. MR. ROYCE'S CAR 7-EX. X.3992 X.8450 X.8430 X.8425 The steering on this car is not entirely satisfactory, and it would be of interest to us to know how it is fitted… | ||
| scan0017 | Modifications required for leather covers for brake and cross steering joints on a Phantom model. | ||
| View original record | X8475 To BY. from Hs/GWH. c. to BY/TWD. Hs/GWH/LG23.11.26. PHANTOM - LEATHER COVERS FOR BRAKE & CROSS STEERING JOINTS. X8425 X8470 Replying to BY/TWDL/GK19.8.26. We have tried sample covers and find… | ||
| scan0018 | Potential modification of cross steering levers to address brake squeaking on the lightened front axle. | ||
| View original record | X8425 c. Hs. C.2. SERIES. CROSS STEERING LEVERS. PIECE NOS. G.74862 & 74861. There is a question as to whether it may not be necessary to modify the above levers with the object of permitting us to… | ||
| scan0019 | Cure for 'steering joggles' on the 20 HP model by increasing friction in the cross steering tube. | ||
| View original record | To DA; From Hs/Rm. 48425 Hs/Rm1/LG1.12.26. FRICTION IN THE STEERING OF 20 HP. X5425 / X5430 We are hoping to cure a large number of complaints of steering joggles on the 20 HP. by friction in the… | ||
| scan0020 | Alternative spring parts for the spring-loaded cross steering joint on a 40/50 Phantom chassis. | ||
| View original record | To. RHC. c. Hs/RM. X8425 BY/TWD2/GK. 7/12/26. 40/50 CHASSIS.(PHANTOM). CROSS STEERING TUBE. SECTION 7041. "N" SCHEME 2054. SPRING LOADED CROSS STEERING JOINT. Please receive herewith one blue print of… | ||
| scan0021 | Required spring load for the cross steering tubes on 40/50 HP and 20 HP cars. | ||
| View original record | To EY/HEB. from Hs/Rm. c. EY. V5425 Hs/Rml/T14.12.26. EY4/H14.12.26. x5425 With reference to the spring load required in the cross steering tubes of the two cars. We find that on the 40/50 HP. we… | ||
| scan0022 | Graph plotting load versus set up for cross steering tube springs. | ||
| View original record | CROSS STEERING TUBE SPRINGS G. 73963 SET UP WITH TWO .100 WASHERS AS ON R's CAR. LOAD 1240 LBS PRESENT STANDARD LOAD 340 LBS SET UP INS. LOAD ON EACH BALL LBS X8425 | ||
| scan0023 | Requesting the manufacture and testing of a spring-loaded cross steering tube for a Phantom vehicle. | ||
| View original record | To RHC. from Hs/Rn. X8425 Hs/Rn/LG21.12.26. PHANTOM - CROSS STEERING TUBE. X8774 (1) Will you please make up a spring loaded cross steering tube for 10-EX to N.sch.2054 and fit with springs G.75448.… | ||
| scan0024 | Part replacement scheme for the Phantom 40/50 Chassis cross steering lever. | ||
| View original record | X8425 BY/TWD5/GK 21/12/26 Hs c Hs/Rm 40/50 CHASSIS (PHANTOM) CROSS STEERING LEVER SECTION 7041 RECEIVED "N" SCHEME 2054 Please receive herewith one blue print of each of the following :- G75,464… | ||
| scan0025 | Blueprints for two alternative springs for the 40/50 Phantom chassis for experimental purposes. | ||
| View original record | x8425 To RMG c Hs/Rm BY/TWD2/GK 31/12/26 40/50 CHASSIS (PHANTOM) CROSS STEERING TUBE SECTION 7041 "N" SCHEME 2054 Please receive herewith one blue print of each of the following :- G 75,472 Spring.… | ||
| scan0026 | To expedite the arrival of specific car springs. | ||
| View original record | 78425. To RHC. from Hs/Rm Hs/Rm1/LG3.1.27. Will you please urge the following and let us know when they arrive :- 20 HP. Springs G.53163. 40/50 HP. " G.75476. Hs/Rm | ||
| scan0027 | Standardisation document for an alteration to the springs in the cross steering tube to improve steering stability. | ||
| View original record | RR 785 REVISED (10H) (DE444 6-10-26) BM. COMPLETED 20.1.27 STANDARDISATION of CHASSIS PARTS. Date 10.1.27 Description of Parts. ALTERATION TO THE SPRINGS IN CROSS STEERING TUBE. X No. 7425 8425… | ||
| scan0028 | Required free length of springs and the supply of washers for the 40/50 Cross Steering Tube. | ||
| View original record | To BY. from Hs/Rm. XC425 Hs/Rm2/T22.1.27. 40/50 CROSS STEERING TUBE. In connection with springs G.75476 in N.Sch.2054. Will you please arrange that these springs should have a free length such that… | ||
| scan0029 | Instructions for fitting and testing the 40/50 Cross Steering Tube. | ||
| View original record | COPY X8425 To Mx from Hs/Rm. c BY 40/50 Cross Steering Tube. Hs/Rm1/T22.1.27. When fitting up the spring loaded cross steering tube the following particulars should be noted. The steering should be… | ||
| scan0030 | Fitting instructions for the 40/50 cross steering tube. | ||
| View original record | To Mx. from Hs/Rm. c. EY. Hs/Rm1/T22.1.27. X8425 40/50 CROSS STEERING TUBE. When fitting up the spring loaded cross steering tube the following particulars should be noted. The steering should be… | ||
| scan0031 | Results of bench and road tests on friction in a steering pivot head. | ||
| View original record | To R. from Hs/Rn. c. to BJ. WOR. c. to RG. E. c. to DA. BY. c. to OY. Handwritten: V8425 V8470 V8425 V8470 FRICTION IN STEERING PIVOT HEAD. We have carried out a number of bench and road tests on the… | ||
| scan0032 | Continued analysis of friction and torque measurements for different mechanical arrangements. | ||
| View original record | -2- Contd. go up in direct proportion to the number of surfaces employed due to there being a small constant occasioned by the cross winding in the pivot under load application. We therefore get… | ||
| scan0033 | Report analyzing steering friction values for different axle pivot configurations and spring load setups. | ||
| View original record | -3- Contd. |-------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------| | | | |… | ||
| scan0034 | Continued memo discussing a friction device and potential modifications to the steering system. | ||
| View original record | -4- Contd. were perfectly bedded we obtained inconsistent results. Incidentally this friction device is somewhat inaccessible. We do not feel that it is worth altering the design to give the increased… | ||
| scan0035 | Clarifying the testing procedure and specified load for steering wheel rotation after the final road test. | ||
| View original record | To Mx. from Hs/Rm. c. to BY. X8425 Hs/Rm2/LS29.1.27. With reference to Hs/Rn1/T22.1.27. The load of 1 1/8 +- 1/2 lb. which we gave as that which should be obtained to rotate the steering wheel without… | ||
| scan0036 | The merits and issues of implementing hydraulic damping on steering systems. | ||
| View original record | To Hs. DA/HDY BY. c. to BJ. Wor. E. X8425 R 4/ML.2.27. X. 8425 X. 235 X. 8431 HYDRAULIC DAMPING OF STEERING. One naturally must not expect too much from this, but I believe it will justify itself if… | ||
| scan0037 | Modification to the cross steering tube to reduce friction for cars with older front axles. | ||
| View original record | To BY. from Hs/Sn. c. to Mx. c. to Hm. X8425 Hs/Rml/LG13.4.27. FRICTION IN THE CROSS STEERING TUBE. X8425 X8420 The spring loaded cross steering tube was originally arranged for the lightened type… | ||
| scan0038 | Instructions for the modification and fitting of distance collars on spring-loaded cross steering tubes. | ||
| View original record | contd :- -2- screw G.73958 then becomes .078", the usual adjusting washers G.75466 being employed for final setting. We recommend that such distance collars should be employed on all spring loaded… | ||
| scan0039 | The benefits of damping friction on the steering tube to avoid rattles. | ||
| View original record | To B.J. from R. c.c. to OY. Hs. BY. 48425 R3/M29.4.27. STEERING - DAMPING FRICTION. X.5431 X.8425 X.9431 X.5425 Regarding the damping friction of the balls of the cross steering tube, 1200 lbs. spring… | ||
| scan0040 | On the adjustment and fitting of the spring-loaded cross steering tube, especially concerning old axles and balloon tyres. | ||
| View original record | X8450 X8425 To BY. from Hs/Rm. c. to Hm. c. to Mx. Hs/Rml/LGS. 7.27. SPRING LOADED CROSS STEERING TUBE. We understand that at the request of the Test Dept. the D.O. have extended the available range… | ||
| scan0041 | Reduction of load on the cross steering tube for the 40/50-HP chassis to improve steering. | ||
| View original record | HS. Y8425 Mx1/EC14.11.27. RECEIVED NOV 12 1927 Re. Cross Steering Tube - 40/50-HP. We are in agreement with the Experimental Department's suggestion that less loading on the cross steering tube is… | ||
| scan0042 | Decision to delay adopting front springs with 1' negative camber on the standard Phantom until torque control is fitted, and a proposal to lower the rear of the car. | ||
| View original record | X8425 To R. from Hs/Rn. c. to BJ. Wor. c. to E. Da. c. to BY. OY. Hs/Rn4/LG1.12.27. STANDARD PHANTOM SPRINGING. X8410 X8420 We cannot adopt the front springs with 1" negative camber on the standard… | ||
| scan0043 | Steering adjustments for the 8-EX car. | ||
| View original record | To RHC. from Hs/Rn. [Strikethrough handwritten text] [Handwritten: V8425] Hs/Rnl/LG1 8.1.28. 8-EX STEERING. [Handwritten: X 8430] Will you please arrange for the pivots on this car to be set at 2 1/4… | ||
| scan0044 | Query regarding the feasibility of removing the bend from the cross steering tube following the fitting of an axle control. | ||
| View original record | X8425 To BY. from Hs/Rm. Hs/Rm3/LG4. 5.28. We should like to know whether it is possible to take the bend out of the cross steering tube now that we have the axle control fitted? Hs/Rm. | ||
| scan0045 | Clearance for the Phantom cross steering tube when the engine is moved forward. | ||
| View original record | Hs. X8425. BY/Cghl2/G.17.5.28. PHANTOM - CROSS STEERING TUBE. In reply to Hs/Rm3/LG.4.5.28. although we could reduce the amount of bend in the cross steering tube on present production chassis, we do… | ||
| scan0046 | Accompanying a report regarding the lubrication of ball ends and arranging a follow-up. | ||
| View original record | E/S. PH. from Wor. c. to Sz. CWB. c. to. SP. Hm. c to Hs. X8425 Wor4/T.27.11.28. Referring to PN.3/WT22.11.28. I attach a report from Mx., from which you will see he indicates that we are in agreement… | ||
| scan0047 | Lubrication challenges of cross steering tube ball ends. | ||
| View original record | Copy. For. from Mx. Mx3/T24.11.28. LUBRICATION OF CROSS STEERING TUBE BALL ENDS. Reference to memo PN3/RT2.11.28. The effective lubrication of ball ends is not an easy matter. The spring loading of… | ||
| scan0048 | Requesting an urgent modification to a ball end and pad to address seizure complaints. | ||
| View original record | To RHC. from Hs/Rm. X8425 Hs/Rm3/LG28.11.28. X7425 Will you please make us a ball end and pad G.73960 modified as per attached sketch. All the drilled holes should be 1/15" dia. This matter is urgent… | ||
| scan0049 | Proposing a solution to address ball end seizure in a cross steering tube. | ||
| View original record | To BY. from Hs/Rn. c.c. to Wor. Mx. c.c. to Hm. EP. X8425 Hs/Rm6/LG28.11.28. CROSS STEERING TUBE BALL END. X8425 X7425 With reference to PN's complaint of ball end seizure - Wor4/T27.11.28 and… | ||
| scan0050 | Cross-sectional diagram of a valve assembly with instructional notes. | ||
| View original record | ROLLS-ROYCE. LIMITED PRINT ROOM 4 DEC 1928 DERBY ARROWS MUST BE IN LINE G75363 28/11/28 | ||
| scan0051 | Extract from a visit to sales discussing the potential abolition of the 'C' steering column based on driver positioning. | ||
| View original record | X.9430 X8430 Extract from DA/EVL/M12.2.24. - VISIT TO SALES 8th.FEB. (1) ABOLITION OF 'C' COLUMN ON EAC.2. X.9430 X8430 It was pointed out that with revised pedals the driver has been moved bodily… | ||
| scan0052 | Secret memorandum discussing the steering and front spring arrangement. | ||
| View original record | To HS. DA. FROM R. SECRET R5/M19.2.24. RG. E. E. A. C.11. c. to CJ. HS. PN. EP. BY. Handwritten: 48430 Handwritten: X8430 (crossed out), X.9420 (crossed out), X.9430 STEERING AND FRONT SPRING… | ||
| scan0053 | Feedback on steering speed and a proposed modification, comparing it to a Hispano model. | ||
| View original record | contd:- -2- As we found before PN. does not like a slower steering than our standard, and says Hispano is too slow, but let us all try the modification we have suggested, which is in hand. R. | ||
| scan0054 | Secret memo discussing the provision of chassis prints for a 'D' steering long chassis and a 'P' steering sports model. | ||
| View original record | To BY. from DA/EV. c. to CJ. Wor. Hs. LHS. X.9430 X8430 S E C R E T. DA/EV2/M14.8.24. E. A. C. 11. CHASSIS PRINT. X8430 X.9430 We send herewith N.sch.1810., the chassis print for a 'D' steering long… | ||
| scan0055 | Secret memorandum discussing the replacement of the mixture control onto the steering column and alternative manufacturing methods for the steering worm. | ||
| View original record | X. 8430 To BY. from DA. c. to CJ. HS. S E C R E T. DA2/M28.8.24. E.A.C.ll. STEERING COLUMN. X. 8430. Mr. Royce has recently instructed that the mixture control should be replaced on the steering… | ||
| scan0056 | Secret memo regarding the design, steering compromises, and high-speed testing of balloon tyres for the EAC.11 model. | ||
| View original record | To B.J. from Hs. S E C R E T +8430 Hs5/LG17.10.24. E.A.C.11. - BALLOON TYRES. +8820 +8430 +4565 The EAC.11 will be designed suitable for fitting balloon tyres. The steering on the EAC.11. is lower… | ||
| scan0057 | Note about the reduction in tyre section for the 20 HP model. | ||
| View original record | contd :- -2- wheels and tyres for the 20 HP. in which the section of the tyre has been slightly reduced from those which have been on Mr. Royce's 20 HP. car. Hs. | ||
| scan0058 | Issues with the EAC.11 model's radiator appearance and steering column vibration. | ||
| View original record | +8430 W/S. PN. from Hs. S E C R E T. Hs2/LG13.11.24. EAC.11. +8250 +8430 With reference to the appearance of the EAC.11. radiator and shutters. If you consider there is any doubt as regards the… | ||
| scan0059 | Proposed modification to the steering gear ratio on the 40/50 HP model to reduce driver effort and prevent wobble. | ||
| View original record | th30 To Hs. PN4/DN25.11.24. X. 8310 X. 8430 I have pointed out to CJ. that the movement between the steering wheel and front road wheels of our 40/50 HP. should be relatively increased, i.e.,… | ||
| scan0060 | Proposed steering modification for the 40/50 HP model to reduce effort and improve stability. | ||
| View original record | +8430 PN4/DN25.11.24. TO Hs FROM PN x8430 x8310 I have pointed out to CJ that the movement between the steering wheel and front road wheels of our 40/50 HP, should be relatively increased, i.e.,… | ||
| scan0061 | Secret memo from Hs to PN regarding the standardisation of lower geared steering for model EAC.11. | ||
| View original record | To PN. from Hs. SECRET. X8430 Hs2/LG26.11.24. RE. STEERING. X8310 Referring to PN4/DN25.11.24. Slightly lower geared steering is instructed as standard for EAC.11. The car which you tried in Derby the… | ||
| scan0062 | Modifications and vibration issues on car 93-NK, focusing on engine coupling alternatives. | ||
| View original record | [Handwritten, crossed out]: 18430 To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. S E C R E T. Hs5/LG26.11.24. E.A.C. 93-NK. [Handwritten]: 18770 [Handwritten, crossed out]: 18430… | ||
| scan0063 | Steering column vibration, control alterations, and exhaust noise on the 40/50 HP model. | ||
| View original record | contd :- -2- It occurs on either 'A' or 'D' steerings at the same speed. If the steering column is supported by means of a friction support, the vibration of the column can be easily eliminated, but… | ||
| scan0064 | 40/50 HP steering nut wear, identifying lack of lubrication as the cause and describing a redesign for an oil-tight steering box. | ||
| View original record | R.R. 493A (50n) (D.B. 175 25-9-24) J.H.D. 48430 EXPERIMENTAL REPORT. Expl. No. REF: Hs3/LG19.12.24. W/S. H. from Hs. Re. Chassis 14-PK. 40/50 HP. Steering nut. 48430 49430 Referring to H3/TB/16.12.24.… | ||
| scan0065 | Driver vision issues caused by new steering wheel positions. | ||
| View original record | X.8430 Der C. Hs. STEERING WHEEL POSITIONS. We are somewhat alarmed by the fact that the new diameter wheel with the increased incline of the steering column, that is, the more acute angle the… | ||
| scan0066 | Secret memorandum responding to a query about steering wheel positions on various car series and types. | ||
| View original record | 18430 To BY. from DA/EV. S E C R E T. DA/EV1/M22.12.24. c. to HS. E. A. C. STEERING WHEEL POSITIONS. X. 8430 X. 8830 We thank you for your BY14/H19.12.24. entitled Steering Wheel Positions. We assume… | ||
| scan0067 | Decision memo on using a plain bearing for the 'V' & 'W' series steering column gearbox. | ||
| View original record | 78430 Mr. Booth. c. Mr. Shelton. c. Hs. BY1/H. 30.12.24. "V" & "W" SERIES STEERING COLUMN. RE BOX FOR STEERING WORM. ************************************ There is no proposal at the moment to use the… | ||
| scan0068 | Secret memo discussing issues with steering positions, driver vision and comfort after converting a 40/50 car into a 'V' series EAC. | ||
| View original record | To DA. ) To E. ) FROM HS. c. to CJ. BY. Wor. +8430 S E C R E T. HS9/LG31.12.24. EAC. 'V' SERIES. +8770 Steering positions. The first 'V' series car which we have fitted up was an existing 40/50 car… | ||
| scan0069 | Complaint about the seating position and visibility in a 'V' series car, proposing an inspection. | ||
| View original record | To HS. from DA. c. to CJ. Wor. BY. X8430 S E C R E T. DA3/M2.1.25. E. A. C. X8430 (crossed out) X.8770 X.1698 'V' SERIES. Replying to your Hs9/LG31.12.24. the part that puzzles us is why you complain… | ||
| scan0070 | Temporary wooden frame seat to standardize seating position measurements for coachbuilders. | ||
| View original record | To Hs. from DA. 48430 DA1/M3.1.25. RE. SEATING POSITIONS. X.3730 X.8430 X.3729 X.8830 In view of the little difficulty which exists in measuring compressed cushion heights and distances back from the… | ||
| scan0071 | Experimental steering setups for the 'V' series, including wheel positions and a missing technical drawing for a universal joint. | ||
| View original record | X. 8430 S E C R E T. DA2/M7.1.25. To BY. } FROM DA. HS. } E. A. C. RE. 'V' SERIES STEERING. X. 8430 This is to confirm that you will arrange an experimental set, bringing in the case of the 'B'… | ||
| scan0072 | Driver seating positions and obstructed vision on 'EAC' 'V' series cars. | ||
| View original record | EXPERIMENTAL REPORT. Handwritten top left: (.. 25-9-24) J.H.D. Handwritten top center: MH / Derby / decr 19 Expl. No. X8430 REF.Hs9/LG8.1.25. S E C R E T. To BJ. from Hs. (BJ is struck through) C. to… | ||
| scan0073 | Page discussing the importance of settling correct seating positions. | ||
| View original record | contd :- -2- correct seating new positions. We think this is an important matter which should be settled as soon as possible. Hs. | ||
| scan0074 | The seating positions and driver's view on 'EAC' 'V' series cars. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. 48430 REF: HS9/LCS.1.25. To B.J. from Hs. c.c to DA/EV. S E C R E T. SEATING POSITIONS ON 'EAC' 'V' SERIES. 48830 BY. and… | ||
| scan0075 | Typed memo discussing the urgency of settling correct seating positions. | ||
| View original record | contd :- -2- correct seating xxxx positions. We think this is an important matter which should be settled as soon as possible. Hs. | ||
| scan0076 | Secret memorandum regarding a new scheme for 'B', 'C' and 'D' steerings on Series 'V' controls. | ||
| View original record | 18450 To BY. from E. c. to CJ. HS. S E C R E T. E3/M13.1.25. E. A. C. RE. SERIES 'V' CONTROLS. X. 8240 X. 8430 Regarding the discussion in connection with the above during your last visit here, we… | ||
| scan0077 | List of twelve questions regarding the particulars of the EAC Steering system. | ||
| View original record | + S430 Mr. Lidsey from Hs. Hs/LG16.1.25. E. A. C. Will you please give the following particulars in connection with the EAC. Steering. (1) Turning circle - right and left-hand lock. (2) Angle of… | ||
| scan0078 | Confirming the steering wheel position on E.A.C. and the electric switch arrangement for the 'V' Series. | ||
| View original record | Handwritten: Hs Handwritten: X8430 Handwritten: We have copied & routed By To Hs. from BJ. BJ5/H26.1.25. "V" SERIES. I attach memorandum from PN. No. PN3/DN26.1.25, confirming the arrangement with… | ||
| scan0079 | Proposed modifications to the steering column on 'V' Series cars. | ||
| View original record | PN3/DN26.1.25. TO BJ FROM PN STEERING COLUMN ON "V" SERIES. As I have already reported to you, the dimensions of the steering column for closed cars, i.e., "B" column, on "V" Series, were very closely… | ||
| scan0080 | The comparative efficiency tests of EAC and 40/50 steering columns. | ||
| View original record | To. Hs From RHC. C. Ver. C. BY. ------------- 48430 RHC1/BE. 15.2.25. ---------------- RE STEERING EFFICIENCY TESTS. We have carried out Tests to find out the comparative efficiency of EAC & 40/50… | ||
| scan0081 | Steering reversibility tests and gearbox modifications, including a cross-sectional drawing. | ||
| View original record | -2-contd- lacking torsional rigidity in itself. This would affect the reversability of the Steering. We therefore took the precaution of turning the Wheel slowly so as to ensure consistent results.… | ||
| scan0082 | Particulars of 40/50 and EAC steering systems, including movement calculations. | ||
| View original record | BY furnished the following particulars of 40/50 and EAC Steering. 40/50 - Steering. ---------------- Worm - 1.125 lead (3 starts) - 9.000 Pendulum Lever. - 34º Lock. - 8.000 Steering Lever. - 39º… | ||
| scan0083 | Diagram illustrating the method for measuring input and output load on a steering system. | ||
| View original record | METHOD. ADAPTED FOR TAKING INPUT & OUTPUT LOAD. STEERING WHEEL GROOVED TO TAKE CORD INPUT LOAD OUTPUT LOAD FIG IA FIG I 2.000" SEE FIG. III. READINGS DB TAKEN FROM HERE READINGS A.C.E.F. TAKEN FROM… | ||
| scan0084 | Diagrams illustrating a reversibility test for unwinding and steering lock positions. | ||
| View original record | REVERSABILITY. TEST. FOR UNWINDING LOAD REGISTERED ON THIS BALANCE. PACKING TO TAKE WEIGHT OF BALANCE FIG III 5 1/4 3 3/4 LEFT HAND 1/2 LOCK LEFT HAND FULL LOCK RIGHT HAND 1/2 LOCK RIGHT HAND FULL… | ||
| scan0085 | Modification drawing for a rocking shaft bearing on a 40/50 Chassis V Series. | ||
| View original record | L.F.554 OIL GROOVES .025 DEEP 100 FILLED WITH OIL E72722 E72723 ADJUSTING WASHER F72720 E72724 OIL GROOVES TO BE CUT IN POSITION BUSHES TO BE REAMED AFTER FITTING IN SLEEVE E72719 E72721 MODIFICATION… | ||
| scan0086 | Graph plotting the results of a reversibility test on various worm gears. | ||
| View original record | - REVERSABILITY TEST - LOAD ON PENDULUM LEVER (lbs) UNWINDING LOAD EAC SHORT WORM (X) EAC SHORT WORM ROLLER BRG (⊕) EAC LONG WORM (□) STANDARD 40/50 (⊙) | ||
| scan0087 | Graph plotting input versus output load tests for different steering gear configurations. | ||
| View original record | INPUT - OUTPUT TESTS CENTRE TO LEFT HAND LOCK. OUTPUT LOAD INPUT LOAD E.A.C. SHORT WORM ROLLER B... STANDARD 40/50 E.A.C. LONG WORM E.A.C. SHORT WORM | ||
| scan0088 | Graph of input-output tests from centre to right-hand lock, comparing different worm gear configurations. | ||
| View original record | INPUT-OUTPUT TESTS CENTRE TO RIGHT HAND LOCK OUTPUT LOAD INPUT LOAD E.A.C. SHORT WORM. ROLLER BRG STANDARD 40/50 (o) E.A.C. SHORT WORM (□) E.A.C. LONG WORM (•) | ||
| scan0089 | Secret memo from GWH to Hs. regarding the progress of work on various cars and a comparison of EAC and Hispano steering. | ||
| View original record | SECRET. X8430 To Hs. at Le Canadel. from GWH. Hs/GWH1/LG17.2.25. COMPARISON OF STEERING. 4214 EAC. AND HISPANO. X8430 Work is being carried on satisfactorily. 46-PK car should be finished early next… | ||
| scan0090 | Comparison of steering effort against tyre pressure for a Rolls-Royce and a Hispano Suiza car. | ||
| View original record | COMPARISON OF STEERING EFFORT ROLLS ROYCE E.A.C. VI & HISPANO SUIZA 'EFFORT REQUIRED AT BALL END OF STEERING LEVER TO TURN FRONT WHEELS' 'CAR STATIONARY' 'BALL END OF SIDE STEERING ARM MOVED THRO' 3"… | ||
| scan0091 | Testing a modification to the 'V' Series steering system by bolting the rocker shaft arms together. | ||
| View original record | R.R. 493A (50h) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. X8430 REF: Hs1/LG28.2.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. S E C R E T. E.A.C. 'V' SERIES… | ||
| scan0092 | Modifications to the E.A.C. steering box design, moving away from roller bearings. | ||
| View original record | X8430 BY/HSB. c. Hs. BY8/H. 3. 3. 25. E.A.C. STEERING. It is pretty certain now that the Experimental Dept. do not intend to go to the steering box with roller bearings. The scheme they will most… | ||
| scan0093 | Design improvements for a steering box mechanism. | ||
| View original record | To DA. & BY. From R. X8430 S E C R E T. RI/M10.3.25. c. to CJ. BJ. E. RG. HS. VERY URGENT - E.A.C. STEERING BOX. X.8430 HS. reports that the above, with the addition of the Le Canadel flange and bolts… | ||
| scan0094 | The steering effort of the E.A.C. 'V' series car. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. Expl. No. X8430 REF.Hs1/LG13.3.25. S E C R E T. E.A.C. 'V' SERIES -… | ||
| scan0095 | Comparing the steering effort and components of Hispano, 40/50, and EAC systems. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. -2- EXPERIMENTAL REPORT. Expl. No. REF. Hsl/LG13.3.25. turn. We have measured the rise and fall of the axle on the Hispano car due to the inclination of the… | ||
| scan0096 | Secret memo discussing the cause of steering differences in the 'V' series, specifically related to weight. | ||
| View original record | To Hs. from DA. V8430 S E C R E T. DA3/M18.3.25. 'V' SERIES. X. 8430 X.4214. STEERING. We have seen a telegram from BY. suggesting that the difference in the 'V' series steering is due to lifting the… | ||
| scan0097 | Heavy steering issues, comparing designs, and proposing potential improvements. | ||
| View original record | To DA. E. RG. from R. c. to CJ. BY. Hs. c. to PN. CWB. S E C R E T. E. A. C. STEERING. X.8430 X.4214 Regarding heavy steering when standing this has been tested, not to be the different front axle,… | ||
| scan0098 | Design alternatives for a pendulum lever shaft and worm gear. | ||
| View original record | contd :- -2- The 3 short roller bearings might be adopted which should certainly put to rest any doubt of friction in the pendulum lever shaft. I understand we have adopted the longer worm so that the… | ||
| scan0099 | Secret memo regarding a proposed whitemetal lined steering nut for the 'V' series steering worm. | ||
| View original record | To BY. from DA. c. to CJ. Hs. X. 8430 S E C R E T. E. A. C. DA2/M25.3.25. 'V' SERIES STEERING WORM. We send herewith N.sch. 1969 shewing the proposed whitemetal lined steering nut giving a steering… | ||
| scan0100 | Comparing the steering geometry of the 'V' series with the older EAC.3 model. | ||
| View original record | X. 8430 To HS. from DA. c. to BY. S E C R E T. DA1/M25.3.25. E. A. C. 'V' SERIES - RE. STEERING. We send herewith N.sch. 1968 a print of which we have sent to Mr. Royce shewing the geometry of series… | ||
| scan0101 | Secret memorandum discussing potential causes and experimental solutions for steering column binding issues. | ||
| View original record | X. 8430 To Hs. from DA. S E C R E T. DAL/M1.4.25. E. A. C. STEERING. X. 8430. After examining the steering column again, though we cannot see any feature that is at all obvious to account for the… | ||
| scan0102 | Proposal for a scheme of a nut and rockers shaft for the 20 HP model, suggesting an experimental build. | ||
| View original record | contd :- -2- After looking into the question of the cheeses etc. we have prepared a little scheme of a nut and rockers shaft on the lines of the present 20 HP. We propose to send this, or a developed… | ||
| scan0103 | Suggestion for a Series 'V' steering nut made from steel with a whitemetal lining. | ||
| View original record | To Hs. from DA. c. to BY. X. 8430 S E C R E T. DA2/M2.4.25. SERIES 'V' STEERING. Further to our letter of yesterday re. steering, we send herewith N.sch.1973 shewing the suggested nut made like the 20… | ||
| scan0104 | Cover note for an attached telegram with noted alterations. | ||
| View original record | HS. XF430 BY/HM17/W.3.4.25. We attach hereto copy of a telegram received from R. You will note one or two words have been altered from the original copy we handed to you. BY/HM. | ||
| scan0105 | Confirmation of a telegram discussing steering lubrication issues and potential improvements. | ||
| View original record | Confirmation of Telegram. ----------------- TO Roycar, Derby, Angleterre. Steering probably lubrication cause of difference between too free running and heavy slow speed combined with rapid lift of… | ||
| scan0106 | Showing a received telegram and its corrected interpretation regarding mechanical parts and testing. | ||
| View original record | Hs. X 8430 Telegram received from R. at Le Lavandou. 6.4.25. ----------------------------------------------------------- As received:- "CONSULAT COUPLING MAKERS FOULING SUFFICIENT DIAMETER FIT… | ||
| scan0107 | Comparing the force required for different steering systems, including the 'EAC' steering. | ||
| View original record | R.R. 493A (50B) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. 4830 REF Hsl/LG6.4.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. S E C R E T. 'EAC' STEERING. X4214… | ||
| scan0108 | Comparing steering effort on 'V' series and 40/50 cars with varying tyre pressures and axle weights. | ||
| View original record | R.R. 493A (50B) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs1/LG6.4.25. EAC. 'V' series with various tyre pressures. | | 70 lbs. | 50 lbs. | 30 lbs. | |---|---|---|---| | R.H.… | ||
| scan0109 | Tests conducted on steering gear to address issues of heavy steering. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF: Hs1/LG6.4.25. Another point is that the EAC. 'V' series is also heavy if the car is driven backwards. If the stiffness… | ||
| scan0110 | Steering efficiency, wear after 10,000 miles, and leverage comparisons for EAC 'V' series and Hispano cars. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT -4- Expl. No. REF. Hsl/LG6.4.25. We have now an arrangement by which we can measure the effort on the steering wheel so that we shall be… | ||
| scan0111 | Graph showing the percentage increase of Hispano steering leverage relative to the E.A.C. V series. | ||
| View original record | HISPANO STEERING. INCREASE OF LEVERAGE REL. TO E.A.C. V PERCENTAGE INCREASE OF HISPANO LEVERAGE RELATIVE TO E.A.C. V SERIES L.H. LOCK. ROTATION OF STEERING WHEEL. R.H. LOCK. 60 50 40 30 20 10 0 300°… | ||
| scan0112 | Graph plotting the instantaneous steering leverage ratio against the rotation of the steering wheel for the E.A.C.V series. | ||
| View original record | [ "E.A.C.V SERIES STEERING LEVERAGE", "STEERING LEVERAGE.", "INSTANTANEOUS RATIO:", "ROTATION OF STEERING WHEEL", "ROTATION OF STUB AXLE", "ROTATION OF STEERING WHEEL", "L.H. LOCK", "R.H. LOCK",… | ||
| scan0113 | Graph of experimental results for Hispano-Suiza steering leverage, comparing individual stub axles and their mean against another series. | ||
| View original record | HISPANO-SUIZA STEERING LEVERAGE. EXPL. RESULTS. STEERING LEVERAGE. INSTANTANEOUS RATIO = ROTATION OF STEERING WHEEL / ROTATION OF STUB AXLE. Y-AXIS: 0 to 22 X-AXIS: 400°, 300°, 200°, 100°, 0, 100°,… | ||
| scan0114 | To Mr. Hardy about a telegram from Mr. Royce concerning the Steering Box question and a visit to Derby. | ||
| View original record | 48430 Mr. Hardy - Camacha W.W. from DA. DA1/LG7.4.25. There is a telegram from Mr. Royce here saying that you should come up to Derby and stay here until the Steering Box question is settled. It is… | ||
| scan0115 | Secret internal memorandum discussing an investigation into a steering binding issue. | ||
| View original record | X. 8430 To DA. from R. S E C R E T. R3/M9.4.25. c. to CJ. BY. c. to Hs. E. E. A. C. STEERING. It seems beyond belief that the above steering is wrong by some inefficiency in the box, (Binding up.) I… | ||
| scan0116 | Internal memorandum discussing the design and performance of the 'V' Series steering system. | ||
| View original record | To DA. & HS. from R. c. to CJ. BJ. PN. c. to E. RG. BY. c. to CWB. 78430 S E C R E T. R4/M15.4.25. 'V' SERIES STEERING. X.8430 X.4214 (1) One must realise that any departure from vertical pivots… | ||
| scan0117 | Page of notes discussing steering geometry, leverage, and potential issues with the cross tube and pivot. | ||
| View original record | contd : - -2- lifted, push the road wheel over the pivot, or make the pivot as vertical as possible, even departing somewhat further from centre point steering. (11) The levers carrying the cross tube… | ||
| scan0118 | Copy of a telegram with instructions and observations on vehicle performance and design. | ||
| View original record | Ho from By 15.4.25 18430 Copy of telegram received from R. 15.4.25. ---------------------------- Roycar. Derby. Angleterre. Leaving here for Wittering Sunday. Stop. Steering should be slower… | ||
| scan0119 | Four potential chassis improvements for a future car, covering exhaust, overheating, suspension, and steering. | ||
| View original record | To E; & DA. from R. To AJS. c. to HS. EY. 48430 R6/M15.4.25. FUTURE CAR WORK. 766 X.8770 8430 4.8770 8230 X.8410 Please contradict if incorrect. When you get time please make studies for chassis… | ||
| scan0120 | The failure of a steering column flange during 'V' series tests in France. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. 48430 REF: Hs2/LG17.4.25: To R; from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. SECRET. EAC. 'V' SERIES - TESTS IN… | ||
| scan0121 | Secret memo discussing EAC steering effort calculations and a proposed frictionless platform test. | ||
| View original record | To Hs. DA from R. S E C R E T. EAC. STEERING. DA. says if the car is moving i.e. no tyre resistance, then 19 lbs. on the steering wheel should produce full lock if efficiency 50%. What force is… | ||
| scan0122 | Secret memo on efficiency tests for 'EAC' steering boxes using different nut materials. | ||
| View original record | 48430 To R. from DA/Hdy. c. to Hs. SECRET 'EAC' STEERING. DA/Hdy1/LG20.4.25. It appears that the EAC. efficiency test figures given in our letter DA/Hdy1/LG18.4.25. were for the whitemetal lined nut,… | ||
| scan0123 | Secret memo discussing the fitting of a steering column flange and a proposed modification to simplify the process. | ||
| View original record | 78430 To R. (Struck through) Gp. EX. (Struck through) Gp. HY. (Struck through) C. HS. DA/Hdy2/W.22.4.25. S E C R E T. E.A.C. V SERIES. STEERING COLUMN FLANGE. ----------- BY. has raised the objection… | ||
| scan0124 | Modification to a steering column flange stiffener. | ||
| View original record | To BY. c. to DA. c. to HS. S E C R E T. E.A.C. V SERIES. STEERING COLUMN FLANGE. ------------------------ We have modified the stiffener for this flange to overcome the difficulty anticipated in the… | ||
| scan0125 | Blueprint for a revised stiffener for a steering column flange. | ||
| View original record | OBTAIN CORRECT OVERALL LENGTH TO SPHERE APPROXIMATELY BEFORE MACHINING FLANGE BY ADJUSTMENT AT OTHER BRAZED JOINTS. THIS WILL AVOID MUCH VARIATION IN FLANGE THICKNESS. MACHINE THIS FACE SQUARE WITH… | ||
| scan0126 | Secret memo regarding a steering column failure on a 'V' Series car after 5,400 miles in France. | ||
| View original record | To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. 48430 Hs4/LG22.4.25. S E C R E T. 48430 EAC. 'V' SERIES - STEERING COLUMN FAILURE. Attached herewith is a sketch showing where the… | ||
| scan0127 | Sketch of a flanged pipe connection with four bolt holes. | ||
| View original record | BOTTOM | ||
| scan0128 | Modifications to the E.A.C. steering box as per N. scheme 1981. | ||
| View original record | X8430 DA/Hdy1/W.23.4.25. S E C R E T. STEERING BOX. E.A.C. ------------------ N. scheme 1981 attached shows the modifications to steering box required to accommodate ball and roller bearings to the… | ||
| scan0129 | Summary of experimental work and various design schemes for steering columns and their components. | ||
| View original record | X8430 HS. RHC C.B. BY7/H. 24.4.25. E.A.C. STEERING. ------------ In order to prevent any misunderstanding, as so much experimental work has been done on the steering columns, I wish to summarise the… | ||
| scan0130 | Design modifications, material specifications, and dimensional alterations to a production scheme. | ||
| View original record | - 2 - are being made in 5% case hardening nickel steel, the shaft being hardened on the surfaces where the roller bearings work. We are not issuing this scheme for production. We are relying on the… | ||
| scan0131 | Confirmation of a wire detailing a fix for a steering trouble by fitting and mounting boxes differently. | ||
| View original record | CONFIRMATION OF WIRE. X8430 WEST WITTERING. 27. 4. 25. HIVES. ROYCAR. DERBY. STEERING TROUBLE ALMOST CERTAINLY REMOVED BY FITTING BOXES FOR EXACT NUT ALIGNMENT AND MOUNTING BOX ON FRAME SO THAT THIS… | ||
| scan0132 | Issues of heavy steering on the 40/50 model and proposing various design modifications. | ||
| View original record | +8430 SECRET. To Hs. from R. To EY. from R. c. to. CJ. DA. Wor. E. A. C. STEERING. X.3430 X.3465 X.4264 It has now been found that the feature of heavy steering also occurs on the 40/50 but it has… | ||
| scan0133 | Modifications to the 'V' Series steering column and the implications for dashboard drilling. | ||
| View original record | +8430 S.T. (strikethrough) c. Mr. Booth. c. Hs. BY7/H. 27.4.25. STEERING COLUMN. "V" SERIES. As it is pretty certain that a modified column will have to be brought in at approximately Chassis 100 or… | ||
| scan0134 | Production delay for 'V' Series Steering, pending instructions for a roller bearing scheme and whitemetal nut. | ||
| View original record | Hs430 to DA. from Hs. SECRET. Hs9/LG27.4.25. EAC. 'V' SERIES STEERING. The Works are held up for instructions for further steerings. We assume that you will be sending your agreement for the roller… | ||
| scan0135 | Proposal for lower-geared steering and suggesting a trial chassis be prepared for evaluation. | ||
| View original record | X.8430 Hs To PN from CJ. Copy to R. Copy to Wox. Copy to Hs. Re Steering. CJ9/E27/4/25 Carlos de Salamanca recently saw R. in the South of France and of his own initiative stated that in his opinion… | ||
| scan0136 | Secret memo about trying a new steering box mounting arrangement for the 'V' Series. | ||
| View original record | To BY. from DA. c. to CJ. Hs. X.8430 SECRET. 'V' SERIES. STEERING. DA1/M28.4.25. Herewith we send N.sch.1966., shewing an arrgt. of mounting the steering box which Mr. Royce would like to rig up and… | ||
| scan0137 | Extract discussing steering box fitting issues and proposed solutions for 40/50 and EAC models. | ||
| View original record | X.8430 Extract from R1/M29.4.25. (X.8770 X.2565) STEERING 40/50 BUT PRINCIPALLY EAC. X.8430 X.3465 Both 40/50 and EAC. boxes require careful fitting to give easy steering, but I believe that the… | ||
| scan0138 | Design change for the 'V' Series steering column, replacing a pressed flange with a drop forging. | ||
| View original record | X. 8430 To EY. from DA. c. to CJ. Hs. S E C R E T. DAL/M29.4.25. 'V' SERIES. STEERING. Herewith we send N.sch. 1984 shewing what Mr. Royce instructs shall be done with the bottom of the steering… | ||
| scan0139 | Secret memo discussing steering component modifications and experiments for 'V' Series cars. | ||
| View original record | To Hs. from DA. c.c. to BY. X. 8430 S E C R E T. DA2/M30.4.25. 'V' SERIES. STEERING. Replying to your Hs9/LG27.4.25., Mr. Royce in RL/M27.4.25. agrees to using the whitemetal nut and the roller… | ||
| scan0140 | Experimental spring-driven damped pendulum lever designed to improve steering and reduce wobbles. | ||
| View original record | To BY. from DA. c. to CJ. Hs. X8430 S E C R E T. DA3/M30.4.25. EAC. STEERING. X.8430 X.8420 We send herewith N.sch. 1993 shewing the proposed spring driven damped pendulum lever which Mr. Royce is… | ||
| scan0141 | Cancelling the .9375 lead worm for the E.A.C. 'V' Series steering and confirming interest in a 1' lead worm. | ||
| View original record | X. 8430 To Hs. from DA. DA2/M1.5.25. E.A.C. 'V' SERIES. STEERING. With reference to the .9375 lead worm for the steering which gave approx. 20% lower steering than the original, Mr. Royce now says… | ||
| scan0142 | Modifications and production decisions for E.A.C. steering components. | ||
| View original record | 48430 BY/HEB RHC. Hs. ------- BY5/H. 4.5.25. --------------- E.A.C. STEERING. --------------- Referring to Da2/M. 30.4.25. of which we have supplied BY/HEB with a copy, the position is that we do not… | ||
| scan0143 | Steering faults on the EAC 'V' Series vehicle during endurance testing. | ||
| View original record | R.R. 493a (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. X8430 REF: Hs2/LGS.5.25. To CJ. from hs. STEERING ON EAC. 'V' SERIES. X8940 X8430 With reference to the attached daily report… | ||
| scan0144 | Criticisms of a car in France involving the chief tester, Mr. Hancock. | ||
| View original record | contd :- -2- In order to go thoroughly into the criticisms of the car running in France we have had our chief tester (Mr. Hancock) at the Works in order that we could discuss the numerous points… | ||
| scan0145 | Tests conducted on the EAC's steering to assess the effect of altering steering arm angles. | ||
| View original record | X.8430 Hs/Rm/LG22.5.25. EAC - STEERING TESTS. We carried out tests to determine whether altering the angles of the steering arms produced any affect on the steering of the EAC. The lines passing… | ||
| scan0146 | Technical bulletin detailing the causes and solutions for high-speed steering wobbles. | ||
| View original record | xP430 To EP. from Hs. c. to Wor. Hs8/LG22.6.25. HIGH SPEED STEERING WOBBLES: 459 We recommend that the following information is circulated to all Depts and Officials :- There have been complaints of… | ||
| scan0147 | Comparing their steering system with Hispano's and discussing potential improvements. | ||
| View original record | To Hs. from R. c. to CJ. BJ. c. to Wor. LHS. c. to BY. EP. c. to PN. CWB. X8430 R2/ M29.6.25. STEERING. X.8430 X.4214 X.8410 With reference to the steering it has always been thought that our steering… | ||
| scan0148 | Technical memo discussing improvements and considerations for steering systems, including the EAC.7 scheme. | ||
| View original record | contd :- -2- Some schemes have advantages in one direction, other schemes have advantages in other directions. In EAC.7. we shall have considerable change by fitting our unique system of damped… | ||
| scan0149 | Request for a copy of a complaint regarding steering. | ||
| View original record | To CWB. from Hs. +8430 Hs8/LG2.7.25. STEERING. I should be glad if you will kindly send me a copy of PN's complaint as regards RR. steering. It is a copy of a memo. which I believe he sent to CJ. I am… | ||
| scan0150 | Short typed memo acknowledging receipt of a communication and enclosing a copy of a requested memo. | ||
| View original record | HS430 S/W (Hs) from CWB. CWB1/LMS.3.7.25. Your Hs8/LG2725. received. I enclose a copy of the memo you refer to herewith. It will not be necessary to return this. CWB. | ||
| scan0151 | Customer criticism and safety concerns regarding the vehicle's steering gear. | ||
| View original record | [Handwritten Initials at top: bWHS (crossed out), Sir CW] PN5/DN11.6.25. TO CJ [Handwritten] c. to CWB. [Handwritten] c. to H. [Handwritten] FROM PN STEERING GEAR. As affecting Rolls-Royce reputation,… | ||
| scan0152 | Improvement of steering gear design and the concept of irreversibility. | ||
| View original record | -2- The obvious way to improve this condition is by increasing the gear-ratio between the steering-wheel and road wheel, but this must not be done, - a different method should be employed. There have… | ||
| scan0153 | Confirmation of a telegram with instructions for steering modifications. | ||
| View original record | +8430 CONFIRMATION OF TELEGRAM. WW. 1/7/25 HIVES: ROYCAR. DERBY. RE. STEERING FIT TEN PERCENT LONGER PENDULUM LEVER NAMELY TEN AND A HALF INCHES REDUCE LEAD OF WORM FROM 1.125 TO .9 RETEST WITH… | ||
| scan0154 | Telegram from Royce with instructions for steering modifications and tests. | ||
| View original record | Hives Roycar Derby. Regarding steering fit 10% longer pendulum lever namely 10 1/2 inches reduce lead of worm from 1.125 to 9 test with simpler buffer springs report on self aligning nett and damper… | ||
| scan0155 | Confidential memo on steering, comparing company practice with Sunbeam and Hispano cars and quoting an Autocar magazine article. | ||
| View original record | To Hs. from R. c. to CJ. BJ. c. to Wor. LHS. c. to BY. EP. c. to PN. CWB. CONFIDENTIAL. RE. STEERING. +8430 R1/M1.7.25. X.8430 X.446 Further to our remarks on steering contained in R2/M29.6.25., the… | ||
| scan0156 | Different steering mechanisms, their disadvantages regarding shocks and heaviness, and plans for a new design. | ||
| View original record | contd :- -2- wheel and the road wheels to reduce the shocks. This constitutes the lightest steering possible, but (as we have experienced) in the Hispano and our own car, it is not absolutely decided,… | ||
| scan0157 | Troublesome car purchased in Chichester, which was suspected to have a broken crankshaft. | ||
| View original record | contd :- -3- purchased at Chichester - in place of a 20 HP. RR. - and known to our staff, has given much trouble to the owner, who regrets his purchase, the last word we have of it being that it was… | ||
| scan0158 | Modifications to the 'V' Series steering gear box to increase irreversibility. | ||
| View original record | X. 8430 To BY. from DA. c. to CJ. Hs. 'V' SERIES - STEERING. DA1/M2. 7. 25. Herewith we send N.sch. 2024., shewing modifications to the steering gear box to increase the irreversibility. A new box… | ||
| scan0159 | Confirming a telegram about urgent modifications to a steering system to fix wobbles for a chassis demonstration. | ||
| View original record | X. 8430 To Hs. from R. c. to CJ. BY. c. to PN. =========== STEERING. We sent you today a telegram as per confirmation below :- HIVES - ROYCAR - DERBY. RE. STEERING IF WE CAN FIT LOWER EFFICIENCY… | ||
| scan0160 | Telegram from Royce regarding urgent steering modifications for a demonstration chassis. | ||
| View original record | POST OFFICE TELEGRAPHS. (26618) EM7777 40,000M. 2/23 R.&Co.Ltd. E.1405. B or C Recd. from Bm. By Ams Prefix S Handed in at 11.54 M. Office of Origin and Service Instructions: Chichester T. Reference:… | ||
| scan0161 | Proposing a rig to measure steering friction and a request for an update on the 20 HP model. | ||
| View original record | To Hs. from R. c. to CJ. BY. c. to DA. 48430 R3/M3.7.25. X. 8430 STEERING. X. 5430 We are very anxious to find the instantaneous value of the co-efficient of friction, and we think a very simple rig… | ||
| scan0162 | Different steering gear systems, including the Marles system, and their effects on road shocks and stability. | ||
| View original record | To HS. from R. c. to CJ. BJ. c. to RG. BY. c. to DA. E. c. to PN. CWB. +8430 STEERING. R1/M10.7.25. X.8430 X.4214 X.4094 (1) We shall have a slightly slower and definitely more irreversible box. This… | ||
| scan0163 | Requesting particulars on efficiency tests for worm and trunnion steering components. | ||
| View original record | X. 8430 To Hs. from DA. DA/HDY2/M10.7.25. EAC. STEERING - TESTS FOR WORM AND TRUNNION EFFICIENCY. Will you kindly let us have particulars of these efficiencies so that we may calculate the actual… | ||
| scan0164 | Importance of wheel balance to prevent high-speed steering wobbles. | ||
| View original record | +8430 To CJ. from Hs: Hs3/LG13.7.25. STEERING GEAR. +457 With reference to the attached correspondence in connection with the above. The balance of the road wheels is a most important factor in… | ||
| scan0165 | Causes and solutions for high-speed steering wobbles. | ||
| View original record | To EP. from Hs. c.c. to Wor. COPY. Hs8/LG22.6.25. HIGH SPEED STEERING WOBBLES We recommend that the following information is circulated to all Depots and Officials :- There have been complaints of… | ||
| scan0166 | Technical memorandum replying to questions regarding steering gear, specifically addressing the issue of steering wobbles. | ||
| View original record | +8430 To C.J. from Hs. Hs2/LG15.7.25. STEERING GEAR. +457 The following are our replies to the questions on the attached sheet ref. CJ15/E24.6.25 :- H. The fact that one of the tyres is worn more than… | ||
| scan0167 | Continued letter discussing tyre wobbles caused by out-of-balance Dunlop tyres and the subsequent correspondence. | ||
| View original record | contd :- -2- wobbles, have become worse is because, recently, Messrs. Dunlop have altered the manufacture of their tyres so that they are out-of-balance. This matter is being dealt with by us. We… | ||
| scan0168 | Letter to Dunlop Rubber Co. Ltd. about high-speed bounce and wobble issues with balloon tyres. | ||
| View original record | COPY. c. Mailing Dept. c. Wd. c. Hs. c. Mx. June 30th. 1925. Tuesday. BY6/H. 30.6.25. Messrs. The Dunlop Rubber Co.Ltd., For the attention of Col. Matthew, Fort Dunlop, Erdington, Birmingham. Dear… | ||
| scan0169 | Dangerous wheel wobble, its out-of-balance causes, and the need for a correction before manufacture. | ||
| View original record | contd :- -2- in connection with our new designs, and their reports are that the wobble is of a very serious nature and distinctly dangerous. We should therefore like to know what you propose to do in… | ||
| scan0170 | Faulty steering and out-of-balance tyres on 'V' Series chassis. | ||
| View original record | BY c. Hs. G. Wer. +8430 EP11/H15.7.25. re. "V" Series Faulty Steering . Tyres out of balance. Although we are delivering chassis with tyres out of balance ( a point which I discussed with you some… | ||
| scan0171 | Instruction from Mr. Royce to manufacture a worm and nut for the 'V' series steering system. | ||
| View original record | X. 8430 To BY. from DA. c. to Hs. DA1/M17.7.25. 'V' SERIES STEERING. In accordance with Mr. Royce's instructions, will you please make a worm and nut for the above steering having a .8 lead, 3 starts,… | ||
| scan0172 | Technical memorandum discussing steering system improvements and comparisons with competitor designs. | ||
| View original record | To BY. from R. To Hs. from R. c. to CJ. BJ. c. to PN. CWB. X8430 R2/M17.7.25. RE. STEERING. X.4094. X.8430 There is nothing in the Marles, Hispano, Isotta Fraschini (Marles), Daimler (Marles), and… | ||
| scan0173 | Sending a new large diameter steering worm for trial at Mr. Royce's request. | ||
| View original record | X. 8430 To BY. from DA. c. to CJ. Hs. DA4/M18.7.25. EAC. STEERING. We send herewith N. sch. 2033., shewing the large dia. worm with a .625 lead which Mr. Royce wishes preparing for trial as quickly as… | ||
| scan0174 | Mr. Royce's request for an irreversible worm and damped pendulum lever to be fitted to his car. | ||
| View original record | To Hs. from DA. c. to BY. +8430 DA2/M20.7.25. X. 8430 X. 205 Mr. Royce is very anxious that his car should have the large dia. irreversible worm in combination with the damped pendulum lever. EV.… | ||
| scan0175 | Testing the efficiency of steering. | ||
| View original record | R.R. 403 (40 H) (SL 42 12-7-23). J.H., D. +8430 EXPERIMENTAL REPORT. COPIES TO: R.C.J. BJ. WOR. By. E. Da. EP. PN. OY. Expl. No. 8430 REF. HS4/LG21.7.25. OBJECT OF TEST. TESTER. E. A. C. A. C.… | ||
| scan0176 | The analysis of friction losses in the E.A.C. steering box. | ||
| View original record | R.R. 493a (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. REF: HS/ACL/LG21.7.25. FRICTION LOSSES IN THE E.A.C. STEERING BOX. We have analysed the principle friction losses in the… | ||
| scan0177 | Efficiency and friction test results for a nut and screw, cheeses, and a rocker shaft. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/ACL/LG21.7.25. The results were corrected for the friction of the ball bear-ings, which was very small. For the… | ||
| scan0178 | Diagrams illustrating the apparatus and results for measuring friction losses and efficiency in an E.A.C. steering box. | ||
| View original record | FRICTION LOSSES IN E.A.C. STEERING BOX. WHITE METAL LINER NUT. 1.125 LEAD WORM SHAFT SUPPORTED & FIXED BALL BEARINGS CARRYING LOAD BALANCE WT. BALL BEARING TO WHICH SPG. BALANCE IS ATTACHED SPRING… | ||
| scan0179 | Graph showing the mechanical efficiency of an E.A.C.V. steering box under increasing loads. | ||
| View original record | MECHANICAL EFFICIENCY OF E.A.C.V STEERING BOX WITH INCREASING LOADS IN SIDE STEERING TUBE. E.A.C. WITH WHITE METAL STEERING NUT. Y-Axis: MECHANICAL EFFICIENCY % X-Axis: LOAD IN SIDE STEERING TUBE lbs.… | ||
| scan0180 | Graph plotting the mechanical efficiency of an E.A.C.V. steering box with increasing loads in the side steering tube. | ||
| View original record | 48430 48450 C. to R. only MECHANICAL EFFICIENCY OF E.A.C.V STEERING BOX WITH INCREASING LOADS IN SIDE STEERING TUBE. E.A.C WITH WHITE METAL STEERING NUT. % MECHANICAL EFFICIENCY LOAD IN SIDE STEERING… | ||
| scan0181 | Urging the adoption of steering improvements for the 7-EX car. | ||
| View original record | To Hs. from R. c. to CJ. BJ. c. to PN. CWB. c. to DA. BY. +8430 7-EX - STEERING. R4/M24.7.25. X. 8430 X. 8770 With reference to my 7-EX car which I am to use to prove the general advantages of our… | ||
| scan0182 | Requesting further data on the efficiency of various steering nut mechanisms, including reversibility. | ||
| View original record | To Hs. from DA. +s430 DA5/M24.7.25. STEERING EFFICIENCIES. X. 8430 | ||
| scan0183 | High-speed steering wobbles, potential causes, and comparisons between different car models. | ||
| View original record | To CJ PN Hs. } FROM R. +8430 R1/MQ1.8.25. RE. STEERING. X.8430 X.457 X.4565 PN's memo. received this morning is very alarming. I do not think however it can be quite as bad as it appears, otherwise we… | ||
| scan0184 | Testing two 20 HP cars with and without balloon tyres to address steering wobble and ride quality. | ||
| View original record | contd :- -2- wobble, and therefore the car may give inconsistent results. Just before the holidays we tested two 20 HP. cars one with balloon tyres, and one without, and it was thought that the… | ||
| scan0185 | Telegram from Royce to Hives requesting a meeting to discuss issues with the Vacuum Tank, Steering Stop, and Condor cam shafts. | ||
| View original record | POST OFFICE TELEGRAPHS. Handwritten Reference (top): X8430 (crossed out) No. of Telegram: 0264 Office Stamp: 11 AUG 25 RECEIVED: At: 3.28 M From: Bmpt By: A Time handed in: S.3.P.M. Office of Origin… | ||
| scan0186 | Cover for the damped pendulum lever, its construction, and potential adaptation for a 'V' series bonnet. | ||
| View original record | 48430 To BY. from DA. c. to CJ. c. to Hs. Dal/M12. 8.25. DAMPED PENDULUM LEVER. X. 8430 X.205 We send herewith N.sch.2037 shewing the cover attached to bonnet strip and valance for the damped pendulum… | ||
| scan0187 | Investigations into high-speed steering wobbles. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.R.D. EXPERIMENTAL REPORT. Expl. No. 78430 REF: Hs/Rml/LG12.8.25. To R. from Hs/Rm. c. to Hs. HIGH SPEED STEERING WOBBLES. +457 We have been carrying out… | ||
| scan0188 | High-speed steering wobble, its relationship with tyre pressure, and the effect of side steering tube springs. | ||
| View original record | R.R. 493a (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/Aml/LG2. S.25. As an example, we obtained a wobble at 66 m.p.h: with a tyre pressure of 60 lbs.per sq.in. This… | ||
| scan0189 | Ongoing steering tests for the 'V' Series, noting part manufacturing delays and confirmed benefits for low-speed steering wobbles. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. +8430 REF: Hs/Rm/LG18.8.25. To R. from Hs/Rm. c.c to Hs. STEERING 'V' SERIES. +457 With reference to the tests at present… | ||
| scan0190 | Causes and potential solutions for high-speed steering wobble, referencing specific car models and tyre issues. | ||
| View original record | +8430 To C.J. from R. c. to BJ. Wor. c. to Hs. PN. BY. RE. STEERING. With reference to the visit of PN. and Hs. today, we have come to the conclusion that this phenomenon of high speed steering… | ||
| scan0191 | Requesting an investigation into the causes and properties of high-speed steering wobbles. | ||
| View original record | +h130 To Hs. from DA. DA2/M14. 8. 25. HIGH SPEED STEERING WOBBLES. X.457 X.8430 With reference to the conference on Thursday we wish to inform you that we are proceeding to design an hydraulic damper… | ||
| scan0192 | Cover letter for a list of experiments on steering wobbles as instructed by Mr. Royce. | ||
| View original record | X8430 To HS from DA. To EY. from DA. DA/LG15.8.25. STEERING WOBBLES. X457 Attached is a list of experiments Mr. Royce would like carried out on the question of steering wobbles. He instructs me to… | ||
| scan0193 | From Mr. Royce detailing experiments to investigate high-speed steering wobbles on various chassis. | ||
| View original record | To Hs. from DA. BY. from DA. DA4/15.8.25. HIGH SPEED STEERING WOBBLES. Mr. Royce thinks several chassis should be utilised for these experiments, one atleast being a Silver Ghost so that the… | ||
| scan0194 | Plan to stiffen a car frame with gussets and stay plates, comparing the Phantom and Silver Ghost models. | ||
| View original record | existing Bring this as near the Cross member as convenient clearing brake pedal. Gusset secured to frame by angle and bolts through web near the bottom flange thus :- The object of this is to very… | ||
| scan0195 | Series of questions regarding vehicle dynamics, steering, and wheel balance for the 40/50 or Phantom models. | ||
| View original record | contd :- -3- (8) Taking a radius rod controlled (40/50 or Phantom) what is minimum safe lean for braking and good steering on corners at high speed. What effect has this minimum lean on high and low… | ||
| scan0196 | Responding to Lord Montagu's complaints about steering column rigidity and the Autovac system. | ||
| View original record | X 8430 To WOR, from Hs. Hs2/LGl 8. 8. 25. RE. 145-MC - LORD MONTAGU. X4117 X8430 X8680 X8579 With reference to BJ4/H17. 8. 25 with letter attached from Lord Montagu dated 15th. inst. (1) The steering… | ||
| scan0197 | Continuation page discussing the normal position of the ignition lever. | ||
| View original record | contd :- -2- This is most unusual and has never occurred on any experimental cars. (3). The normal position of the ignition lever should be three-quarters of the way on the quadrant. In this position… | ||
| scan0198 | Potential improvements and modifications to a steering system, including worms, levers, and dampers. | ||
| View original record | To Hs. from R. c. to CJ. PN. c. to BY. Hm. EP. X 8430 R1/M18.8.25. STEERING. X. 8430 X.457 X.4565 We shall be pleased to see you at any time you think it profitable and convenient to come to WW. We… | ||
| scan0199 | High-speed steering wobble, its potential causes like balloon tyres, and proposed modifications to the steering and suspension. | ||
| View original record | contd :- -2- modification to the R.H. cross steering arm which will require another ball. Particulars of this will be sent you today, and the designs for the hydraulic damper will be sent this week.… | ||
| scan0200 | Causes and potential solutions for high-speed wobbles, focusing on weight distribution and tyre balance. | ||
| View original record | contd :- -3- and possibly the weight of the front of the car on a given inflated tyre may affect the time and intensity, and the possi- bility of these high speed wobbles building up. You will… | ||
| scan0201 | Handling issues of the New Phantom, focusing on weight distribution, chassis flexibility, and tyre performance. | ||
| View original record | contd : -4- tube and the damper lever. We cannot understand why New Phantom is worse than Silver Ghost, but naturally it is (1) somewhat heavier forward, (2) it is more top heavy forward which may be… | ||
| scan0202 | Phantom steering, attributing the problem to balloon tyres and suggesting a hydraulic damper. | ||
| View original record | To Hs. from R. c. to BJ. Wor. c. to BY. DA. X8430 RL/M's. 8. 25. RE. PHANTOM STEERING. X. 8430 X. 8420 X. 7430 X. 235 X. 4565 I cannot see why the new axle can have any detrimental effect on the… | ||
| scan0203 | Wheel balancing for Phantom models, discussing the problems with temporary balance weights and sourcing of properly balanced parts. | ||
| View original record | To BJ. from R. c. to CJ. PN. Hs. c. to BY. EP. L8430 RL/M19.8.25. STEERING. X. 8430 X. 457 In reply to your telephone message of this morning I quite agree that no Phantoms should be issued unless the… | ||
| scan0204 | Continuation page discussing steering and suspension improvements to prevent vehicle wobbles. | ||
| View original record | contd :- -2- improvement can be made. This commences with lowering the rate of steering so that wobble shocks, and other shocks, do not reach the hands. The larger worm will go further in this same… | ||
| scan0205 | Steering wobble, tyre pressures, and wheel balancing based on test results and customer instruction. | ||
| View original record | try30 BJ17/H20.8.25 (Noon). To C.J. from B.J. Copies to By. Hs. STEERING. In the memorandum dictated at 10-30 a.m. and read to you on the telephone this morning, I mentioned that C.F.N. had… | ||
| scan0206 | Arranging collection of car 46-PK for fitting a new larger diameter worm steering and other improvements. | ||
| View original record | X8430 To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY1/2 c. to Wor. Hs13/LG20.8.25. 46-PK. X8770 We are arranging for a driver to call for 46-PK car the first thing on Monday morning. Apart… | ||
| scan0207 | Steering wobble issues experienced on Phantom and Silver Ghost models. | ||
| View original record | To B.J. From Hs. 73430 Hs3/LG20.8.25. STEERING WOBBLES. +457 On all Phantom cars which have been tested in France, steering wobbles have been experienced and reported upon. This information was given… | ||
| scan0208 | High-speed steering wobbles caused by low-pressure tyres on 40/50 HP cars. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. C O P Y. Expl. No. REF: Hs1/LG20.4.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. LOW PRESSURE TYRES. 49430 1457… | ||
| scan0209 | Page 2 of an experimental report on a delayed test for a scheme to solve steering wobbles. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT -2- Expl. No. REF. Hsl/LG20.4.25. made by you sometime ago. The test of this scheme has been held up owing to other problems on 'V' series… | ||
| scan0210 | High-speed steering wobbles in Phantom and Silver Ghost cars using friction shock absorbers. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. Expl. No. X6430 REF Hs/Rm2/LG21. 8. 25. HIGH SPEED STEERING WOBBLES.… | ||
| scan0211 | Vehicle steering, suspension, and wheel balance issues. | ||
| View original record | R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/Rm2/LG21.8.25. they were not apparent to the driver. With 12 lbs. friction, the steering was not at all nice, high… | ||
| scan0212 | The nature and causes of high-speed steering wobble, including observations of wheel marks on the road. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF Hs/Rm2/LG21.8.25. The amplitude is an excess of 8° as the instrument was set to record only those wobbles causing a… | ||
| scan0213 | Analysing the causes and mechanics of criss-cross vibration and wheel wobble in a front axle. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -4- Expl. No. REF: Hs/Dm2/LGZ1.8.25 (1) The strength of the road springs. (2) Their distance apart. (3) The moment of inertia of the… | ||
| scan0214 | Vehicle wobble, hydraulic damping, and suspension tests, comparing the Phantom and Silver Ghost models. | ||
| View original record | R.R. 493a (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -5- Expl. No. REF: Hs/Am2/LG21.8.25. With regard to amplitude of these wobbles. We set our instrument to measure wobbles of over 6º only… | ||
| scan0215 | Potential change to steering parts and instructions to limit production accordingly. | ||
| View original record | K8430 R. c. Hs. BY5/H. 21.8.25. STEERING. -------- We have already informed the Works that there is a likelihood of a change on certain items of the steering. We have enumerated the parts and asked… | ||
| scan0216 | Responding to a complaint about tyre pressures and steering wobbles, defending the Experimental Department's procedures. | ||
| View original record | To B.J. from Hs. To C.J. from Hs. c. to EY. 48430 Hs4/LG21.8.25. STEERING. +457 With reference to BJ17/H20.8.25. The Experimental Dept. take great exception to the 2nd. para. in this memo. as regards… | ||
| scan0217 | Analysing steering wobble caused by out-of-balance tyres and proposing solutions involving shock dampers and steering friction. | ||
| View original record | To Hs. from R. c. to CJ. BJ. c. to PN. BY. EP. +S430 R2/M2d.8.25. STEERING. X.8430 X.457 We have wired you today as follows :- "PROBABLY FRONT SHOCK DAMPERS MORE EFFECTIVE THAN "AT PRESENT REALISED.… | ||
| scan0218 | Causes and remedies for steering wobble, specifically the 'pit-pat' phenomenon. | ||
| View original record | contd : -2- the steering being sufficiently quickly deflected. We are now fairly satisfied that we know the nature of the phenomenon sufficiently well for us to try the remedies suggested. It will be… | ||
| scan0219 | Letter from F.H. Royce discussing the causes and potential solutions for high-speed wobbles in cars, particularly related to low-pressure tyres. | ||
| View original record | Copy to CJ. BJ. Hs. PN. EY. EP. X8430 "ELMSTEAD" WEST WITTERING, CHICHESTER. Senor C. de Salamanca, MADRID. 21st. Aug. 1925. My dear Carlos, STEERING. X.457 X.8430 X.4565 Regarding the high speed… | ||
| scan0220 | Causes of and potential solutions for high and low-speed steering wobbles. | ||
| View original record | To CJ. from R. c. to BY. Hs. +8420 RL/M22. 8. 25. X.457 X.8430 HIGH SPEED STEERING WOBBLES+ So far we have not much hope of modifying the chassis or steering so that this phenomenon cannot happen. It… | ||
| scan0221 | Continued memo discussing high-speed wobble issues on the Silver Ghost chassis compared to the Phantom. | ||
| View original record | contd :- -2- the new steering box, larger dia. of worm, and (1) and (2). (4) In the midst comes another chassis with Nos. (1) and (3) plus an hydraulic damper to act quickly enough for steering, but… | ||
| scan0222 | Proposed hydraulic damper for the Phantom front axle to address high-speed wobble issues. | ||
| View original record | To BY. from DA. c. to CJ. Hs. +8430 DA1/M22. 8.25. PHANTOM FRONT AXLE. X.8420 X.8430 X.457 X.8425 Herewith we send N.sch.2045 shewing the proposed hydraulic damper for the front axle for use in… | ||
| scan0223 | High-speed steering wobbles, comparing balloon and high-pressure tyres. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. REF: Hs/Rm1/LG22.8.25. To R# from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING WOBBLES. Our… | ||
| scan0224 | Preventing steering wobbles by balancing wheels and maintaining tyre pressures on cars with 4-wheel brakes. | ||
| View original record | To BJ. from Hs, c. to EW. c. to Wor. c. to EP. ---------------- KS430 Hs1/LG24. 8. 25. STEERING WOBBLES. HS430 When considering balancing the wheels in order to prevent steering wobbles, this must… | ||
| scan0225 | Incorrect steering gauge supplied by Dunlops and the planned action. | ||
| View original record | To HS. from BJ. HS430 BJ18/H24.8.25. STEERING. With reference to R1/M18.8.25, last paragraph, page 4, please let me know what has been done in regard to ascertaining the cause of the gauge sent out by… | ||
| scan0226 | Replacement of cast aluminium steering wheel centres with Duralumin forged centres for the 'New Phantom' model. | ||
| View original record | +8430 Wd Roy. C. Hs C.BY/HED. BY3/H. 25.8.25. STEERING WHEEL. - "NEW PHANTOM". +8430 I brought before the attention of R. and CJ. the fact that we were using a cast aluminium steering wheel centre,… | ||
| scan0227 | Physics of high-speed steering wobbles, including precession and natural frequency. | ||
| View original record | ToHs. from DA. +8430 DA1/M24.8.25. X.457 X.8430 HIGH SPEED STEERING WOBBLES. If the precession of the wheels is a forced one it looks as though a very great torque would be required to keep it going.… | ||
| scan0228 | Testing an axle with vertical steering pivots to resolve high-speed steering wobble. | ||
| View original record | To Hs. from R. c. to CH. BY. PN. +8430 R5/M25.8.25. STEERING WOBBLES. X.457 X. 8430 In the conversation on the telephone yesterday I asked you to test as soon as possible an axle with vertical… | ||
| scan0229 | High-speed steering wobbles and tests with hydraulic damping. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. +8430 Expl. No. REF Hs/Rm2/LG25. 8.25. To R. from Hs/Rm. c. to CJ. BJ. c. to DA. RG. c. to E. BY. c. to Wor. HIGH SPEED STEERING WOBBLES.… | ||
| scan0230 | The effects of different tyre types on high-speed steering wobble. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF:Hs/Bm2/LG25.8.25. TEST A. We found that without making the steering unduly heavy (8 to 10 lbs. at the steering wheel… | ||
| scan0231 | Vehicle wobble, comparing the amplitude between balloon and high-pressure tyres. | ||
| View original record | R.R. 493A (50B) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF: Hs/Rm2/LG25. 8. 25 . the wobble dies out. We carried out a test with the Chronograph to ascertain the respective… | ||
| scan0232 | The use of glycerine, towing tests, and addressing wobbles with balloon tyres on Phantom and Silver Ghost models. | ||
| View original record | R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -4- Expl. No. REF:Hs/Rm2/LGE5.8.25. We are using glycerine as a hydraulic element which will give us a high viscosity and less variation… | ||
| scan0233 | Investigation of steering column vibration on Lord Montagu's car compared to the London Trials cars. | ||
| View original record | To Wor from Hs. 18430 Hs2/LG26.8.25. LONDON TRIALS CARS. 18430 / X8950 Referring to BJ7/H25.8.25 returned to you. The steering on the London Trials Car is identical in design to that fitted to Lord… | ||
| scan0234 | Potential causes and solutions for high-speed steering wobbles, specifically regarding pivot vertical and radius rods. | ||
| View original record | To Hs. from DA. 78430 DA2/M26.8.25. X.8430 X.457 HIGH SPEED STEERING WOBBLES. We believe R. has either spoken or written to you some further suggestions on steering wobbles. It would be of interest to… | ||
| scan0235 | Steering alterations, high-speed wobbles, and the potential acquisition of a Lancia for comparison. | ||
| View original record | To CJ. from R. c. to BJ. Wor. c. to PN. CWB. c. to Hs. BY. 4830 STEERING, AND CWB. X.8430 X.457 X.4048. The views of CWB. are quite sound, and several of us have already been thinking in the same… | ||
| scan0236 | Potential modifications to improve damping, such as variations in the vertical pivot and lightening the front axle. | ||
| View original record | contd : -2- and possibly we may do some good by the horizontal hydraulic damping of the periods when they do occur. In the meantime we are finding out whether moderate modifications will improve the… | ||
| scan0237 | Secret memo proposing steering improvements for the New Phantom and Goshawk models to address high and low speed wobbles. | ||
| View original record | +8430 To CJ. from R. c. to BJ. Wor. c. to PN. CWB. c. to RG. BY. c. to DA. E. Hs. S E C R E T. R1/M28.8.25. TELEPHONED TO CJ. FRIDAY MORNING 28TH.INST. RE. STEERING - NEW PHANTOM (AND ALSO GOSHAWK IN… | ||
| scan0238 | Brief report on tests conducted to investigate high-speed steering wobbles. | ||
| View original record | To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. X 8420 Hs8/LG28.8.25. HIGH SPEED STEERING WOBBLES. X457 We have carried out tests on a car on which the front steering pivots were… | ||
| scan0239 | Short internal memo regarding a telephone message received from London, requesting instructions for the Works. | ||
| View original record | [REDACTED] - from Wor. Hs. - " " TS/30 Wor6/M28/8/25. I attach hereto telephone message I have this afternoon received from London. Will you please give the necessary instructions to the Works.… | ||
| scan0240 | Telegram from Mr. Royce to CJ proposing steering improvements for the New Phantom and Goshawk models. | ||
| View original record | 28/8/25. Miss Elias telephones for CJ:- ------------------------ The following is copy of telegram message from Mr.Royce to CJ:- " Re Steering - New Phantom and also Goshawk to a less degree. " To do… | ||
| scan0241 | Requesting a correction to a previous message, changing the word 'perfect' to 'purchase'. | ||
| View original record | X 8430 make correction. From Wor. To Hs. Worl/M29/8/25. With reference to my Wor6/M28/8/25, giving copy of R's message to CJ., in the last paragraph of this message the word "perfect" should read… | ||
| scan0242 | Theory behind high-speed steering wobbles and a proposal to build a test apparatus. | ||
| View original record | To Hs. from DA. (handwritten) X.8430 DA10/29. 8. 25. HIGH SPEED STEERING WOBBLES. X.457 X. 8430 Mr. Royce is anxious to prove if possible that the wobble set up is due to conical precession without… | ||
| scan0243 | High-speed steering wobbles on an axle fitted with disc wheels. | ||
| View original record | R.R. 498A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No: 4430 REF Hs/Rm/LG31.8.25. To R. from Hs/Rm. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING WOBBLES.… | ||
| scan0244 | The efficiency of a large diameter nut and worm for steering. | ||
| View original record | R.R. 493A (50 H) (I).D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. Exptl. No. 4830 REF. Hs/ACL1/LG31825 To R. from Hs/ACL. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. STEERING. EFFICIENCY OF… | ||
| scan0245 | The efficiency and friction of a nut under load, particularly in a reverse direction. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT -2- Expl. No. REF:Hs/ACL1/LG31825 Actual µ starting from rest with the thread under load .161 Effcy. instarting from rest - 42.5% We… | ||
| scan0246 | Obtaining a steering gauge from W.W. for inspection and follow-up with the makers. | ||
| View original record | To B.J. from Hs. +8430 Hs4/LG31. 8.25. STEERING. X8430 / F457 Answering your BJ18/H24. 8.25. We are obtaining this gauge from W.W. We will check it and will afterwards take it up with the makers. Hs. | ||
| scan0247 | Outlining the testing procedure for new steering and suspension components for the New Phantom and Goshawk models. | ||
| View original record | +8430 BJ3/DN31.8.25. TO Hs FROM BJ c. to CJ c. " R. c. " Wor c. " BY Re: STEERING - NEW PHANTOM - (ALSO GOSHAWK IN A LESS DEGREE). With reference to R1/M28.8.25, CJ wishes the four items, viz:- (1)… | ||
| scan0248 | The steering ratio of a worm and nut, pending experimental results. | ||
| View original record | 48430 HS. C. WOF. C. BY/WGP BY15/H. 1.9.25. In regard to the steering ratio of worm and nut we should use, since we have had so many combinations I wired to Da. as to which type he suggested we should… | ||
| scan0249 | Failure scenarios and associated costs for the New Phantom steering system. | ||
| View original record | X8430 c. Hs. BY3/H. 1.9.25. NEW PHANTOM STEERING. -------------------- Referring to the attached record of a telephone message from R. to CJ, and dealing with CJ's pencil note, the replies to the… | ||
| scan0250 | Logistics and recommendation for fitting improved steering parts at Derby before sending a car to France. | ||
| View original record | To B.J. from R. c. to CJ. Wor. c. to Hs. BY. 49430 R5/M1.9.25. STEERING. X. 8430 X. 8940a. Regarding the four items for improving the steering, I fear the idea of sending a car to France with only… | ||
| scan0251 | Specification memo detailing a revised steering box fitted to a chassis. | ||
| View original record | X8430 To TMW from RHC. RHC5/BE. 1.9.25. 44-PK - CHASSIS The following specification has been fitted to above Chassis. X.8430 - Steering Column New Revised Steering Box with (720 lead) of Steering Nut… | ||
| scan0252 | Causes and potential solutions for high-speed wobbles in steering. | ||
| View original record | To BY. from R. c. to CJ. BJ. c. to PN. CWB. c. to HS. DA. three RL/M1.9.25. X.457 X.8430 X.8520 STEERING - HIGH SPEED WOBBLES. Many thanks for your suggestion that inertia damping might be used in… | ||
| scan0253 | Vehicle suspension dynamics, gyroscopic movements, dampers, and weight reduction for the 40/50 car. | ||
| View original record | contd : -2- a hillock the other. Through the irregularity of the road sometimes these gyrostatić movements are resisted by the shock of the irregular road surface. Sometimes they are assisted by the… | ||
| scan0254 | From Mr. Royce detailing modifications to steering boxes for the 40/50 HP and 20 HP models. | ||
| View original record | To BY. HS. } FROM DA. 48430 DA3/M2.9.25. c. to CJ. 40/50 HP. & 20 HP. X. 8430 X. 5430 Mr. Royce wishes, as a modification for instant adoption, to use the existing steering boxes on both cars,… | ||
| scan0255 | Required pitch of the steering worm for 40 HP and 20 HP cars. | ||
| View original record | To BY. from R. To Hs. from R. c. to CJ. H8430 R1/M2.9.25. STEERING. X. 8430 X. 5430 I think it is imperative to at once settle upon a pitch of steering worm for the existing box, on both 40 HP. and 20… | ||
| scan0256 | Steering geometry, specifically a new dashboard bracket, worm lead, and pendulum lever, awaiting experimental results. | ||
| View original record | To BY. from Da. c. to Hs. X. 8430 Dal/M2. 9. 25. STEERING. We understand that a new bracket on the dashboard will enable you to use the large worm with short lead. With reference to the lead and the… | ||
| scan0257 | Calculations for various steering ratio configurations. | ||
| View original record | STEERING RATIOS:- 48430 E.A.C. 8.375 RAD. P Q STD. Q/P = (2π 8.375 x 2.3) / (9.5 x 1.125) = 11.33 LARGE DIA .720 LEAD 10.5 PENDULUM. Q/P = (2π 8.375 x 1.750) / (10.5 x .720) = 12.15 LARGE DIA .720… | ||
| scan0258 | High-speed steering wobbles investigating the effects of out-of-balance wheels. | ||
| View original record | R.R. 493A (50 H) (I.D. 31, 12-6-25) J.H.D. 78430 EXPERIMENTAL REPORT. Expl. No. REF: Hs6/LG2.9.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING WOBBLES. 7457… | ||
| scan0259 | High-speed steering wobbles. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. +8430 EXPERIMENTAL REPORT. Expl. No. REF Hs/Bm?/LCS. 9. 25. To R. from Hs/Rm. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING… | ||
| scan0260 | The causes and contributing factors of high-speed steering wobble and front axle vibration. | ||
| View original record | R.R. 493A (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF:He/Rm2/103.9.25. point, drastic alteration in the present standard design of the front of the car will be necessary to… | ||
| scan0261 | The causes of front axle wobble and the application of damping devices to prevent it. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF:Hs/Rn2/LG39.25. elements previously mentioned. It should be pointed out that a front axle will not start to vibrate in… | ||
| scan0262 | Methods and challenges of damping vehicle wobble via the steering system and axle. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. -4- Expl. No. REF Hs/Rm2/LG3.9.25. a wobble. The available means of applying the damping are :- (1) In the steering system. (2) On the… | ||
| scan0263 | Confirmation of a telegram from R. Royce discussing gyrostatis wobble in relation to wheel speed and brake drums. | ||
| View original record | X8430 CONFIRMATION OF TELEGRAM RECEIVED FROM R. on 4.9.25. "CLARK. ROYCAR DERBY. X. 457. X. 8430. IS THERE SUCH A THING AS A GYROSTATIC WOBBLE AND CAN IT BE AT WHEEL SPEED WITH SUITABLE MOUNTING. IS… | ||
| scan0264 | High-speed steering wobbles, testing the effects of adding weighted bands and rings to the wheel assembly. | ||
| View original record | R.R. 498A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. 48480 REF Hs/Rm2/LG4 9.25. To R. from Hs./Rm. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING WOBBLES.… | ||
| scan0265 | Mechanical device to address high-speed steering wobbles. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. +84630 Expl. No. REF : Hs/Rm/104.9.25. To R. from Hs./Rm. c. to CJ. BJ. c. to RG. R. c. to DA. BY. c. to WoB. HIGH SPEED STEERING… | ||
| scan0266 | Proposal for an anti-wobbling device involving strengthening shock absorbers and adding a torsional spring. | ||
| View original record | contd :- -2- It appears to us that there are possibilities in this idea if it was given a fair chance. If the shock absorber arms and ball ends were strengthened, the rod replaced by a tubular sleeve… | ||
| scan0267 | Various proposals and modifications for the steering system. | ||
| View original record | +8430 [REDACTED STAMP] C. Hs. BYS/H. 7.9.25. ******************** STEERING. ********* Referring to RI/M.3.9.25. we thought we had made it clear that the larger box only fouled the frame if we… | ||
| scan0268 | Priority of chassis modifications over steering proposals. | ||
| View original record | - 2 - BYS/H. 7.9.25. ------------- written CJ. putting the facts of the case before him, to enquire whether he will give agreement to ordering the material necessary to make the modifications at the… | ||
| scan0269 | The balance of road wheels and its effect on steering wobble, comparing against other makes. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. Hs/30 EXPERIMENTAL REPORT. Expl. No. REF:Hs5/SGT/10.9.25. To R; from Hs. c. to CJ. BJ. c. to RG. E. c. to BY. DA. c. to Wor. ******************** BALANCE OF… | ||
| scan0270 | Alteration to the pivot lean to address high-speed wobbles. | ||
| View original record | To R. from Hs/Rm. c.c. to CJ. BJ. c.c. to RG. E. c.c. to DA. EY. c.c. to Wor. +ev30 Hs/Rmd/LG10.9.25. HIGH SPEED WOBBLES. +457 Alteration to pivot lean. We have altered the pivot lean on a car from… | ||
| scan0271 | To suspend work on a damped pendulum lever alteration due to dissatisfaction with the proposed scheme. | ||
| View original record | 48430 Sgd. [illegible] Mr. [illegible] c. Hs. c. Wor. *********** BYL/H. 10.9.25. ************** On the new material recently instructed to CJ. & R's requirements, with the object of improving the… | ||
| scan0272 | Proposed steering modifications for the New Phantom and India models to address slow speed wobbles and road shocks. | ||
| View original record | To BY. HS. from R. c. to CJ. BJ. c. to RG. Wor. c. to DA. E. c. to PN. CWB. 48430 R1/M10.9.25. NEW PHANTOM & INDIA. RE. STEERING. X. 8430 X. 401 SLOW SPEED WOBBLES & ROAD SHOCKS. X. 5430 X. 457… | ||
| scan0273 | Remedies for high-speed wobbles, including tyre choice, shock dampers, and a new pendulum lever design. | ||
| View original record | Contd :- o2o the same object we have sent a new box with larger dia. worm so as to further reduce the feeling of road shocks. A damped pendulum lever will be used for this also as soon as a simple… | ||
| scan0274 | High-speed steering wobble caused by wheel imbalance in the Silver Ghost and Phantom models. | ||
| View original record | To BJ. from Hs. +82630 Hs3/LG12. 9. 25. +2457 With reference to the attached memos. in connection with balance of wheels. This matter was not discussed at W.W. There was no reason for discussing it.… | ||
| scan0275 | Internal memorandum discussing the causes and potential solutions for high-speed wheel wobble. | ||
| View original record | To Hs. from R. c. to CJ. Wor. c. to BY. DA. c. to EFC. CWB. 48430 STEERING. X.8430 X.458 X.401. Naturally you will still be pressing forward the tests to ascertain why the high speed wobbles appear at… | ||
| scan0276 | Wheel wobble, tramping speed, and the effect of pivot angles. | ||
| View original record | contd :- -2- parts of the wheels and axles, we shall get a tendency to wobble when the tramping speed sychronises with the road wheel speed, but we want to be sure of this. As you know we can lower… | ||
| scan0277 | Investigations into high and low-speed steering wobbles and potential solutions. | ||
| View original record | 48430 To CJ. from R. c. to Hs. c. to BY. c. to Da. c. to PN. c. to CWB. STEERING. R7/M14.9.25. X. 8430 X.457 X.1152. Regarding the hgih speed steering wobbles we have reported what we are doing. We… | ||
| scan0278 | Confirmation of wire regarding lightening axle, brake, hub, and wheel components. | ||
| View original record | 48430 CONFIRMATION OF WIRE. HIVES. ROYCAR. DERBY. WEST WITTERING. 14. 9. 25. REGARDING STEERING OUTSIDE POINTS ALREADY ARRANGED IT ONLY SEEMS POSSIBLE TO LIGHTEN THE ENDS OF THE AXLE BRAKES HUBS… | ||
| scan0279 | The results of tests using hydraulic dampers to reduce high-speed steering wobbles. | ||
| View original record | To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. EY. c. to Wor. X8420 Hs4/LG16.9.25. HIGH SPEED STEERING WOBBLES. H457 We shall be sending you a full report on the tests carried out today. Briefly,… | ||
| scan0280 | Decisions made to address high-speed steering wobbles on the Phantom model. | ||
| View original record | to Hs. from DA. c. to CJ. BY. c. to EP. PN. 8430 DAL/M23.9.25. PHANTOM STEERING. VISIT OF HS. EP. RM. ON THURSDAY 22ND.INST. X.8430 X.457 X.401 To deal immediately with the question of high speed… | ||
| scan0281 | Proposed modifications to front axle, wheels, and braking systems. | ||
| View original record | -2- wobbles. As soon as this .940 lead worm has been tested and agreed to, existing worms should be scrapped. (7) In order to take out weight, as an immediate move it is proposed to do more machining… | ||
| scan0282 | Outlining urgent experiments required for a Phantom steering box, rear axle, and hydraulic shock absorbers. | ||
| View original record | To RHC. from Hs. X8430 Hs3/LG24.9.25. URGENT EXPERIMENTS REQUIRED BY R. 1. R. is very keen that we should test as quickly as possible one of the .940 lead nuts in the standard Phantom steering box. 2.… | ||
| scan0283 | Modification to the Phantom steering system to address high-speed wobble. | ||
| View original record | To BY. from DA. c. to CJ. Hs. +8430 DA1/M25.9.25. PHANTOM STEERING. X. 8430 X. 8425 Herewith we send N.sch.2054 shewing the set up spring in the cross steering tube for adding friction to the ball,… | ||
| scan0284 | The urgent proposal to adopt and standardize a new thread for the steering shaft and nut on the New Phantom chassis. | ||
| View original record | X8430 we. [struck through] c. Hs. c. Dft. [struck through] c. Wor. BY10/H. 25.9.25. 40/50 HP. CHASSIS. NEW PHANTOM. Mr.Royce is emphatic that we should be in a position to adopt the intermediate… | ||
| scan0285 | Phantom Steering, customer tyre instructions, and trials for pivots and axles. | ||
| View original record | f8430 HS To BJ from CJ. Copy to Dr. " " Hs. " " BY. " " EP. " " PN. Phantom Steering. CJ4/E25/9/25 With reference to the attached memo. DA1/M23/9/25, addressed to Hs., it is suggested that customers… | ||
| scan0286 | High-speed steering wobbles, testing different hub offsets and the effect of single-wheel braking. | ||
| View original record | R.R. 493A (50 H) (D.D. 31. 12-6-25) J.H.D. +8430 EXPERIMENTAL REPORT. Expl. No. REF: HS/AHS/LASC.9.25. To R. from hs/Rm. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING… | ||
| scan0287 | The preference for a rigidly held axle over an equalised brake system that can pivot forward. | ||
| View original record | contd :- -2- steering and an axle held rigidly in torsion would be preferable, from the driver's point of view, to a perfectly equalised pair of brakes on an axle which could be made to assume a… | ||
| scan0288 | Modifications for a Phantom car destined for France, including steering, axle, and engine updates. | ||
| View original record | To CJ. from R. c. to BJ. Hs. BY. f8430 R1/M26.9.25. RE. PHANTOM CAR GOING TO FRANCE. XXXXXXX X.8430 X.8940a X.8980 This car should be kept back for the whole of the modifications we intend doing to… | ||
| scan0289 | Internal memorandum discussing the testing and standardisation of a .940 lead worm for the 40/50 Phantom chassis steering system. | ||
| View original record | To BY. from Hs. c. to Wor. c. to Eft. c. to Ws. +8430 Hsl/LG28 .9.25. 40/50 CHASSIS - PHANTOM. X8430 X8940A The question of the .940 lead worm was discussed during our last visit to WW. At first R.… | ||
| scan0290 | Implementation of different steering worm gears for production cars, referencing Mr. Royce's preference. | ||
| View original record | contd :- -2- (2) Assuming that a standardisation sheet for the .940 worm is completed in 6 weeks time, when would the first production car be produced with this type of steering? If it is a fact that… | ||
| scan0291 | Production timeline for new steering columns pending a 10,000-mile trial. | ||
| View original record | +8430 U. Sec. (struck through) c. Hs. c. Woi. BY4/H. 28.9.25. STEERING COLUMN AND BOX. Referring to BY/HEB8/M. 1.9.25. and BY/HEB7/M. 5.9.25. giving particulars of the new parts put into production at… | ||
| scan0292 | Tyre balance weights and a steering component issue. | ||
| View original record | +8430 BYS/H. 28.9.25. E.H. W.A.J. C. Hs. D.B. STEERING. ---------- Referring to Dal/H. 23.9.25. the tyres we receive from the Dunlop Company are within the limits specified against paragraph numbered… | ||
| scan0293 | Cancelling the new damped pendulum lever steering scheme and reverting to the old design. | ||
| View original record | X8430 BY/HEB c. Hs. BY3/H. 23.9.25. NEW STEERING. INSTRUCTED ON PRODUCTION BY YOU (BY/HEB8/M.1.9.25. AND BY/HEB7/M. 5.9.25.) FOR "W" & "X" SERIES. As a result of Hs' recent visit to Mr.Royce, it is… | ||
| scan0294 | Proposals for steering modifications to be fitted on the 10,000-mile standardization trial for the 'New Phantom'. | ||
| View original record | XS430 BY/HEB. BY/IWD. Hs. C. R.H.C. BY2/H. 29.9.25. PROPOSALS FOR STEERING TO BE FITTED ON THE 10,000 MILE TRIAL FOR STANDARDIZATION, "NEW PHANTOM". 1. Each pivot should be fitted with a plain washer,… | ||
| scan0295 | Investigations into high-speed steering wobbles. | ||
| View original record | R.R. 498A (50 M) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. 48430 REF Hs/Anl/LC29.9.25 To MR. from Hs/R m. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING… | ||
| scan0296 | High-speed steering wobbles and potential solutions. | ||
| View original record | R.R. 493A (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/Bal/1629.9.25. They attained a small amplitude which could be maintained at a fixed speed, but died out as soon as… | ||
| scan0297 | Diagram comparing the effect of removing a side-steering tube on high-speed steering wobbles. | ||
| View original record | [ "HIGH SPEED STEERING WOBBLES", "FRONT", "STANDARD PIVOT LEAN", "AND TOE-IN", "7.25" BALLOON TYRES", "INFLATED 20 LBS/D"", "FRONT", "COMPARISON OF EFFECT OF REMOVING SIDE-STEERING TUBE ON WOBBLES",… | ||
| scan0298 | Production timeline for a new steering column and box for the 40/50 HP 'Phantom' chassis. | ||
| View original record | By c. Hs. c. Wks. X S430 SFT11/EMM.29.9.25. 40/50 H.P. CHASSIS - "PHANTOM". NEW STEERING COLUMN AND BOX. In reply to memos. Hs1/LG.28.9.25 and BY4/H.28.9.25 - please note - with regard to the… | ||
| scan0299 | 10,000-mile test for the New Phantom, including delays, steering modifications, and anti-wobble device experiments. | ||
| View original record | To B.J. from Hs. +8430 Hs3/LGL.1.10.25. NEW PHANTOM FOR NEXT 10,000 MILES. X8940a BJ22/H30.9.25. We propose taking up with R. the question of the 10,000 miles test in France. If we carry out all the… | ||
| scan0300 | The out-of-balance limits for Dunlop tyres for the New Phantom steering system. | ||
| View original record | 48430 eBJ. c. BJ. c. Hs. c. Ha. c. Iv. c. --- ----- BY19/H. 1. 10. 25. ---------------- NEW PHANTOM STEERING. -------------------- Referring to BJ19/H. 30.9.25. and with reference particularly to the… | ||
| scan0301 | Manufacturing difficulties with whitemetal lined steering nuts and suggestions from Mr. Royce. | ||
| View original record | To BY. from DA/HDY. c. to CJ. R. 'Hs. +8430 DA/Hdy1/M2.10.25. STEERING NUTS. X.8430 X.5430 With regard to the difficulty experienced in manufacture of the present type of whitemetal lined nut. in… | ||
| scan0302 | Investigation into complaints of stiff steering on the 'New Phantom' chassis. | ||
| View original record | Hs. c. BY. c. Wor. c. Mx. c. Hm. 48430 EP8/H6.10.25. re. "New Phantom" Chassis Steering Stiffness. We have had one or two complaints of the above in which it has been reported that the steering… | ||
| scan0303 | Suggesting a design improvement for sockets by rounding their edges, illustrated with 'before' and 'after' sketches. | ||
| View original record | (2) EP8/H6.10.25. 'A' I suggest that if the edges of the sockets are neatly rounded as shown in Sketch "B" 'B' an improvements will probably be found." If there is any action we can take at once in… | ||
| scan0304 | List of modifications for the 'Z' series and next car for France, covering steering, axle, brake, and body components. | ||
| View original record | To BY. Hs. from R. c. to CJ. BJ. DA. X8430 R1/M6.10.25. PHANTOM FRAME ETC. X.8380 X.8940a. X.8430 X.8770 MODIFICATIONS FOR 'Z' SERIES, AND NEXT CAR FOR FRANCE. The following modifications should be on… | ||
| scan0305 | List of specifications and modifications for various vehicle components, numbered 13 to 19. | ||
| View original record | 2. (13) Subframe side levers N.sch.1870. (14) Sheet steel wing stays N.sch.1824. (15) Dipping head lamps RR. type. N.schs.1824. 1855. (16) Springs of superior manufacture. a. Improved heat treatment.… | ||
| scan0306 | Standardisation of chassis parts for steering pivot pins and bushes to reduce wear. | ||
| View original record | RR 755 (10H) (SL391 2-11-23) MP 281297 48430 COMPLETED 7.10.25 STANDARDISATION of CHASSIS PARTS. Date 10.9.25. Description of Parts. STEERING PIVOT PINS AND BUSHES. Origin. To reduce wear.… | ||
| scan0307 | Steering stiffness on the New Phantom chassis, focusing on the design of hardened balls in pivot joints and lubrication methods. | ||
| View original record | 18430 EP. C. HS. C. MMR. C. WOR. C. Wm. BY14/H. 9.10.25. NEW PHANTOM CHASSIS - STEERING STIFFNESS. Referring to EP8/H. 6.10.25. the first point I wish to state is that the addition of grooves in the… | ||
| scan0308 | Steering and clutch modifications for chassis 107-MC, owned by G. Summers Esq. | ||
| View original record | R.R. 498A (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. 48430 REF Hsl / L.G.13.10.25. To Hm. from Hs. c. to BY. c. to MX. RE. CHASSIS 107-MC - G. SUMMERS ESQ. 4417 With reference to… | ||
| scan0309 | New weight-saving design for the Phantom front axle and steering levers. | ||
| View original record | +8430 To WJ. from R. c. to BJ. BY. c. to Hs. R5/M13.10.25. PHANTOM FRONT AXLE. X.8420 STUB AXLES & STEERING LEVERS. X.8430 We have in hand another design to save weight for equal strength, and to make… | ||
| scan0310 | Reasons for implementing a stepped dashboard on Phantom & Goshawk models. | ||
| View original record | To CJ. from R. c. to CJ. DA. c. to BY. HS. 48430 R11/M13.10.25. DASHBOARDS. PHANTOM & GOSHAWK. X.8430 X.5500 X.5430 X.8500 Last year we tried to get a stepped dashboard: this year we must. (1) It will… | ||
| scan0311 | Alteration to the lubrication scheme for front axle pivot pins. | ||
| View original record | 15430 To Hs from RHC. c.c. DY. RHC8/BE. 15.10.25. RE LUBRICATION OF PIVOTS ON EAC We have altered the Lubrication Scheme for the Pivot Pins on the latest Front Axle which was arranged in accordance… | ||
| scan0312 | Comparing top and centre lubrication methods for the Phantom's steering pivots. | ||
| View original record | R.R. 499A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. REF HsS/LG15.10.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. X S430 'PHANTOM'. X8980 X8436… | ||
| scan0313 | Dissatisfaction with the steering on car 8-EX, delaying a 10,000-mile test until the issue is corrected. | ||
| View original record | To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. +82430 Hs2/LG28.10.25. Hs. dictated but not seen. 8-EX CAR. +8940a We are not satisfied with the freeness of the steering on 8-EX. We… | ||
| scan0314 | Revised seating positions, pedal layout, and steering wheel size. | ||
| View original record | X. 8430 To BY. from DA. c. to CJ. Hs. DA8/M22.10.25. EAC. SEATING POSITIONS. We send herewith N.sch.2070 shewing the seating positions with revised positions of pedals, and revised steering column on… | ||
| scan0315 | Prohibitively heavy weight of a trial car body and the standard steering wheel size. | ||
| View original record | Handwritten: X8430 To CJ. from R. c. to BJ. CWB. c. to DA. BY. c. to Hs. R1/M29.10.25. RE. ENCLOSED BODY SENT TO FRANCE FOR TRIAL X. 8830 X. 8430 This body, like many of the 40/50s. has I think become… | ||
| scan0316 | The manufacturing status of a modified steering system for the 'New Phantom' chassis No. 8-EX. | ||
| View original record | X. 8430 To Wor. -> Hs. By. Re "NEW PHANTOM" Chassis No. 8-EX. (Modified Steering). I attach a copy of BJ1/D5.11.25 and CWB1/LH5.11.25, concerning the above. Copies have also been sent to R. What is… | ||
| scan0317 | Issues with non-standard wheels and tyres on the 'New Phantom' Chassis No. 8-EX, delaying testing. | ||
| View original record | C O P Y. To CJ. from BJ. BJ1/D5.11.25. "New Phantom" Chassis No. 8-EX (Modified Steering). With reference to the attached report, in conversation with CWB. I understand that the front wheel rims were… | ||
| scan0318 | Test report on the modified steering of a 'New Phantom' chassis, No. 8-EX. | ||
| View original record | CH. C. to BJ. Cx. H. COPY. CWB1/LH5.11.25. "NEW PHANTOM" CHASSIS No. 8-EX. (Modified Steering). This car was tested by PN. Cx. and myself on Wednesday, the 4th November. It was finally considered… | ||
| scan0319 | Test report detailing observations on a car's performance and design flaws. | ||
| View original record | CWB1/LH5.11.25 (Cont'd.) A Two arm job, necessitating a very rapid movement of both arms and giving an appearance of great awkwardness. Incidentally, although it is probably not at all material to… | ||
| scan0320 | Forwarding an extract from a tester's report on a steering incident with a 'New Phantom' chassis. | ||
| View original record | Hs. BY. Wor. c. BJ. C. Hm. X8430 EP/Thnl/H9 11.25. re. "New Phantom" Steering. We give below extract from a report from our tester Wright, in regard to an incident which has occurred on the road… | ||
| scan0321 | Steering wheel and seat dimensions, with a suggestion for a trial modification. | ||
| View original record | 48430 To CJ. BJ. from R. c. to EY. HS. PN. c. to C. CWB. R2M1 6.11.25. £ RE. STEERING WHEELS, AND SEATS. X. 8430 X. 8830 As standard, I do not agree to any other dimen- sions than our 9" under the… | ||
| scan0322 | New Phantom front axle design intended to reduce steering wobbles. | ||
| View original record | 18430 To BY. from R. c. to CJ. BJ. Hs. R3/M16.11.25. RE. PHANTOM FRONT AXLE. X.235 X.457 (STEERING WOBBLES) X.8420 X.8430 DA. is sending a drawing of a new complete front axle, of a design we have… | ||
| scan0323 | Tyre pressures and various steering system improvements, including dampers and a new axle design. | ||
| View original record | To HS. from R. To BY. from R. c. to CJ. BJ. PN. X8430 R6/M.8.11.25. STEERING - TYRE PRESSURES. X.3538 X.5430 X.8430 X.457 I notice in France they have come to the same conclusion as myself, namely,… | ||
| scan0324 | Proposed modifications to steering wheel and seat dimensions for better driver visibility. | ||
| View original record | 48430 To R. from BJ. Copies to Hy. HS. C. PN. O&B. BJ4/H20.11.25. STEERING WHEELS AND SEATS. We asked LHS. and the Coachbuilding Committee to consider the information given in R2/M16.11.25, and the… | ||
| scan0325 | Modifications to the 'D' steering and seat height to improve the driver's view over the radiator. | ||
| View original record | To CJ. from R. c. to BJ. BY. c. to Hs. PN.. +8430 R1/M23.11.25. RE. 'D' STEERING - DRIVER'S VIEW. X. 8430 X. 5430 Doubtless the steering wheel can get in the way under adverse circumstances, but the… | ||
| scan0326 | Bumper test for the latest Phantom steering system and its components. | ||
| View original record | R.R. 493A (50 H) (D.D. 21. 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. X8430 REF. Hs1/LG24.11.25. R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. BUMPER TEST ON LATEST PHANTOM… | ||
| scan0327 | High-speed steering wobbles and the effect of wheel plane proximity to the pivot pin. | ||
| View original record | R.R. 493A (50 H) (D.D. 31, 12-6-25) J.M.D. EXPERIMENTAL REPORT. Expl. No. x 8430 REF Hs/Rn1/LGS.12.25 . to R. from Hs/Rm. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. HIGH SPEED STEERING… | ||
| scan0328 | Tests on steering wobbles, focusing on the effects of wheel dishing and friction in the king pin pivots. | ||
| View original record | R.R. 493A (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF Hs/Rml/LG2.12.25. Under these circumstances we could obtain no shimmy at any speed. The steering was definitely… | ||
| scan0329 | Fitting a new type of steering column to two Riviera trial cars and the required modifications. | ||
| View original record | x Sur 30 EWT. c. Hs. BY7/H. 8.12.25. RIVIERA CARS. In reply to BJ3/H. 4.12.25. copy of which was attached to EWT8/M.7.12.25. the latest type steering column could be fitted to the two trials cars in… | ||
| scan0330 | Axle design modifications and experiments related to high-speed steering wobbles. | ||
| View original record | To HS. from DA. X8430 DA2/M11.12.25. HIGH SPEED STEERING WOBBLES. X.457 X.8420 X.8430 With reference to Hs/Rml/LGS.12.25., it will of course have occurred to you that the effect of arranging the axle… | ||
| scan0331 | Diagnosing a steering stiffness complaint on chassis 11-EX after driving in wet and muddy conditions. | ||
| View original record | +8430 To OJ. from Hs. c. BJ. Hs6/T29.12.25. RE CHASSIS 11-EX. (BJ2/H24.12.25.) +8900 With reference to CWB's report on the above car stating that the steering definitely stiffens after running in wet… | ||