Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Test results for wheelbase and steering lock turning circles on a 1907 long car and a 1908 type frame. | ||
| View original record | X.426. WHEEL BASE . LOCKS ETC. Test on 60591 long 1907 car wheelsbase 143 3/4" to left full lock 44' diam. circle outside front wheel. to right 47'9 ditto. (caught steering tube) EP.10.10.07. Test on… | ||
| Scan002 | Steering specifications detailing the turning circles for the 1550 chassis. | ||
| View original record | copy of card. X.426. 16.3.11. STEERING. Turning circles 1550 chassis. Off side 46' 6" Near side 44' 6" Centre of wheel track taken as outside radius. EH 16.3.11 1900 tyre. O.S. 46' 2" N.S. 44' EP. | ||
| Scan003 | Specification sheet for steering turning circles of the 1550 chassis. | ||
| View original record | H.R. 138a (100 T) R.H. 89. 23-7-20. G 2769 X. 426. Steering. Turning Circles. 1550 chassis. Off Side 46 ft 6" Near side. 44 ft. 6". Centre of wheel track taken as outside radius. E.P. 18.3.11. E.H.… | ||
| Scan004 | Steering turning circles data for the 1900 chassis. | ||
| View original record | R.R. 325m (100 T) S.H 89. 21-7-20 G-2769 X.426. STEERING. Turning Circles. 1900 chassis. Off Side 46 ft. 2" Near side. 44 ft. Centre of wheel track taken as outside radius. Taken by Maceve 31.1.12. | ||
| Scan005 | Steering test results detailing the smallest turning circles for short and long chassis. | ||
| View original record | R.R. 585a (100 T) S.H. 89. 22-7-20) G 2762 X.426. S T E E R I N G . Tests. by Hives. - 7.12.09. Smallest circles chassis an be turned in Short chassis -- 42'10". Long chassis --- 44'3". Left Lock.… | ||
| Scan006 | Comparing the smaller turning circle of a 45hp Fiat to a Rolls-Royce car, questioning the effect of its shorter wheelbase. | ||
| View original record | R.R. 348c (100 H) (F 984. 6.12.10). E.P. 8053 DEPARTMENTAL MEMO. Issued 7th meeting RECEIVED P OCT 31 1911 This column is for Name of Person addressed. DATE. X426 W Haden. 30 oct. 1911 Technical Cttee… | ||
| Scan007 | Instruction note comparing vehicle turning circles for different wheelbases. | ||
| View original record | R.R. 200 (6 19) (W. 199. 24.1.11) G. 1411. file ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: OD Order No.: Customer's No.: X426 Re: Attached One foot difference in a wheel base like ours makes about 4ft… | ||
| Scan008 | Instructions with a table of dimensions regarding differences in wheel bores and steering. | ||
| View original record | File 460 7 ROLLS-ROYCE LIMITED. INSTRUCTIONS. Customer's No. 31. 10. 11 XNSP 50 C.D. Latest for a difference in a wheel bore The rims are what leads us to a difference in steering. that is proved, but… | ||
| Scan009 | Note recording the steering lock diameters for right and left hand turns, with steering stops. | ||
| View original record | Locks [strikethrough]shat[/strikethrough] X426 1900. [strikethrough]700[/strikethrough] 729A [strikethrough]test & Lowe.[/strikethrough] 27/3/08. (with steering stops) Rt. hand 44' 8" diam Left - 43… | ||
| Scan010 | On steering wheel movement specifications for full lock. | ||
| View original record | R.R. 148 (20 H) (C. 898. 26.2.09) G. 6740. X426 1900. [700 crossed out] Steering Movement of wheel for full lock. Standard for 1900 cars & 1909. full lock - wheel turns - 1 full turn 17" wheel (except… | ||
| Scan011 | Extract from a report discussing the turning circle of various chassis. | ||
| View original record | X.426 Extract from Mr Oldham's report 9/10/12. TURNING CIRCLE. This appears to be slightly on the increase. From my old notes I find that we used to turn the old 40/50 (about 1100 series) long chassis… | ||
| Scan012 | The turning circle and steering lock adjustments for a chassis. | ||
| View original record | Extract from EP40/T241012. TURNING CIRCLE. We can still turn our present standard chassis in 44 ft circle (actually 44'6") when turning to "near" side, but the turn to the "off" side is over 47 ft,… | ||
| Scan013 | Technical report discussing dynamometer testing, silencer explosions, and a comparative analysis of steering wobble with a Daimler car. | ||
| View original record | Wor/Hy23/L26513 (contd) 2. making an examination of this. When this has been done and we have found how to make the way through bigger it will be re-erected and tested at high speeds on the… | ||
| Scan014 | Wheel wobble and balance testing, including notes on a Delaunay-Belleville vehicle. | ||
| View original record | Wor/Hy23/L26513 (contd) 3. itself. The whole front of the car oscillates from side to side in a most alarming manner when wheels are 2 lbs out of balance. I fitted some bumps 1/4" high to the front… | ||
| Scan015 | Technical report comparing steering and wobble characteristics of Napier and R.R. No. 2100E cars against competitors. | ||
| View original record | Wor/Hy23/L26513 (contd) 4. bad one. This car is distinctly better than the Daimler or R.R. as regards wobbles. Napier. Dia. of steering wheel 17" Steering reversible both ways. Wodden wheels 880 X 120… | ||
| Scan016 | Extract from a report on a steering wobble issue for Chassis No. 7-CA, suggesting modifications. | ||
| View original record | R.R. 235A (400 T) S.C. 356 15-2-16) G. 1546. To J. from R. C. to El. C. to WOR. C. to LF. C. to BY. C. to Na. R14/W9916. September 1916. 9th. Re Chassis No. 7-CA. X.426 Steering. (Extract) There was a… | ||
| Scan017 | Confirmation of a telegram requesting the turning circle for the standard forty fifty car. | ||
| View original record | X.426 CONFIRMATION OF TELEGRAM. 18.11.18 ROYCAR DERBY. HIVES WHAT CIRCLE WILL OUR STANDARD FORTY FIFTY CAR TURN IN (STOP) TEST ALSO ALL OTHER CARS YOU HAVE AVAILABLE. ROYCE. | ||
| Scan018 | Turning circles of a chassis, with comparisons of lock angles to other manufacturers like Delauney, Daimler, and Napier. | ||
| View original record | R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. To R. from EH. c. to CJ. X426 EH4/LC.181118. 18th Nov. 1918. X.3404 RE - TURNING CIRCLES OF CHASSIS In reply to your telegram requesting turning… | ||
| Scan019 | Weakness of steering lock stops and a proposal to strengthen them. | ||
| View original record | X426 By. From EP. C. to HS C. to Dn. C. to M. EP16/F25.4.21. X426 RE. STEERING LOCK STOPS. Although every attention is given to see that these stops are set correctly so as to give full lock and yet… | ||
| Scan020 | Table of turning circle dimensions for the 40/50 and Goshawk II chassis. | ||
| View original record | TURNING CIRCLES. TABLE DATA: FIRST SECTION: TRACK LINE ROW 1: 40/50 CHASSIS - WHEELBASE 143·500: R.H 47'-10", L.H 44'-10" - WHEELBASE 150·000: R.H 50'-6", L.H 47'-2" ROW 2: GOSHAWK II - WHEELBASE… | ||
| Scan021 | Requesting the turning circle of a Hispano, a short chassis, and a long chassis, both with and without balloon tyres. | ||
| View original record | To Hs. from CJ. e. to R. [struck through] Handwritten: X980 CJ2/E28/11/23 Please let us know the turning circle of the Hispano, the R.R. short chassis and the R.R. long chassis. Also please let us… | ||
| Scan022 | Attached chart showing turning circles for 40/50 HP, Coshawk ll., and Hispano cars. | ||
| View original record | CJ. from Hs. X980 Hs4/LG1.12.23. RE. TURNING CIRCLES. Attached herewith is chart showing Turning Circles of 40/50 HP, Coshawk ll. and Hispano cars. Hs. | ||
| Scan023 | From CJ to Hs regarding turning circles and a request to forward a related document. | ||
| View original record | X980 To Hs. from CJ. re Turning Circles. CJ6/E3/12/23 Please send a copy of your Hs4/LG1/12/23 to R. if you have not already done so. CJ | ||
| Scan024 | Accompanying a print that compares turning circles for 40/50 and 20 HP models with standard balloon tyres. | ||
| View original record | X980 To R. from Hs. Hs3/T5.12.23. RE TURNING CIRCLES. X980 94204 Herewith print showing a comparison of turning circles for 40/50 and 20 H.P., with standard balloon tyres. Hs. | ||
| Scan025 | Requesting clarification on the turning circle figures for the 40/50 long chassis, comparing data from various sources. | ||
| View original record | X.980 To HS. from EA. DA4/M12.1.24. TURNING CIRCLES. X.980 Could you send us some fairly exact figures of the turning circles that are actually being obtained on the 40/50 long chassis. In your memo.… | ||
| Scan026 | Request for steering specifications, locks, and turning circles for the Hispano Suiza. | ||
| View original record | To Hs. from Da. 4980 Da6/M23.1.24. RE. HISPANO SUIZA. X.980 X.4214 It would be of interest and use to us at the moment if we had the locks and corresponding turning circles on the Hispano Suiza. Could… | ||
| Scan027 | Communication regarding a report on Balloon Tyres, supply from Dunlop, and the effect on turning circles for 20 HP and 40/50 HP cars. | ||
| View original record | WOR. from Hs. X980 BALLOON TYRES. X980 X4565 Hs4/LG23.1.24. With reference to letter from Mr. Fuller, Springfield dated 7th. inst. attached. We sent a complete report on Balloon tyres (copy to CJ)… | ||
| Scan028 | Requesting information on the turning circles for the 40/50 model. | ||
| View original record | X.980 To HS. from DA. S E C R E T. DA3/M24.1.24. EAC. 111. TURNING CIRCLE. X.980 The information re 40/50 turning circles is being pressed for. Could you let us have it as soon as possible? DA. | ||
| Scan029 | Discrepancy in steering lock angles and a check of the turning circles for the 40/50 HP chassis. | ||
| View original record | To DA. BY. EP. } from Hs. Hs1/LG29.1.24. [Handwritten] X980 TURNING CIRCLES. [Handwritten] X980 X3408 Owing to the fact that the angles of steering lock given on the 40/50 HP. Coachbuilders Drg. does… | ||
| Scan030 | The turning circles for a 40/50 HP long chassis with a 150' wheelbase. | ||
| View original record | R.R. 403A (40 H) (SL 42 12-7-23). J.H.,D. EXPERIMENTAL REPORT. Expl. No. 980 REF: Hs/Rn/LG29.1.24.3 40/50 HP. LONG CHASSIS - WHEELBASE 150". TURNING CIRCLES. [Diagram showing front wheels turned, with… | ||
| Scan031 | Turning circles and locks on a production chassis, particularly the challenges with front wheel brake models. | ||
| View original record | X.980 To Hs. from DA. DA1/MS31.1.24. RE. TURNING CIRCLES. X.980 Thank you for your Hs1/LG29.1.24. We presume that these good circles and locks are actually obtained on production chassis. The reason… | ||
| Scan032 | Querying turning circle figures for various chassis models. | ||
| View original record | To Hs. from CJ. Copy to Da. (struck through) 4980 (handwritten) Turning Circles. CJ1/E1/2/24 Referring to the following figures:- L.H. R.H. 40/50 short chassis ...... (46'3 in a box) 44.10 (struck… | ||
| Scan033 | From CJ to Hs questioning the larger turning circle of PN's car and its implications for other chassis. | ||
| View original record | To Hs. from CJ. 1980 CJ4/E4/2/24 Why is the turning circle of PN's car so very much larger than standard? Will this turning circle apply to other chassis fitted with the new engine and four wheel… | ||
| Scan034 | Issues with a car's turning circle, specifically concerning condemned radius rods and ongoing modifications. | ||
| View original record | x980 To CJ. from Hs. Hs3/LGS.2.24. TURNING CIRCLE. x980 / x9680 With reference to the turning circle on the car we recently prepared for FN. This car was fitted with radius rods. These have been… | ||
| Scan035 | Turning circles for different chassis, comparing measurements over hub caps versus track lines. | ||
| View original record | V980 To C.J. from Hs. c.c. to DA. Hs1/LG.7.2.24. TURNING CIRCLES. With reference to CJ1/E1.2.24. The figures you quote for the short chassis turning circles are calculated over the hub caps. All the… | ||
| Scan036 | The steering geometry and lever measurements for a Hispano model. | ||
| View original record | To R. from Hs/Rm. c. to CJ. c. to RG. c. to DA. Y980 Hs/Rm1/LG7.2.24. HISPANO STEERING DETAILS. DA/5/M23.1.24. X.980 X.4214 The right and left-hand turning circles of the Hispano are 49 ft. The locks… | ||
| Scan037 | Showing design details and movement of a Hispano Suiza steering system. | ||
| View original record | EXPERIMENTAL REPORT, R.R. 40EX (40 H) (SL 42 12-7-23). F.H.D., Expt. No., REF., 9 7/8", PIVOT CENTRE, 1 7/8", PENDULUM LEVER, 11.8", 18.5" dia, 180°, 8", STEERING LEVER, 8.83", 15 1/2°, ANGULAR… | ||
| Scan038 | Recommending final test procedures for the 40/50 HP steering to address variations in turning circles. | ||
| View original record | To EP. from Hs. c. to BY. X980 Hs2/LG7.2.24. 40/50 HP. STEERING. X980 X2563 On the standard 40/50 chassis which we received for fitting 4-wheel brakes, we found that as we received them there was… | ||
| Scan039 | Querying the turning circles of various chassis models, including the EAC.III and the 40/50. | ||
| View original record | 4980 To Hs. from CJ. Turning Circles. CJ3/E8/2/24 Referring to your Hs1/LG7/2/24, will the EAC.III short always have such a large turning circle? The L.H. appears to be bigger than the L.H. of the… | ||
| Scan040 | Setting steering locks and defining the turning circle for the 40/50 HP chassis. | ||
| View original record | Hs. C.BY. C. CHT. R.A. 50? 53' L.H 43? 46' X980 EP4/Hll.2.24. re. 40/50 HP. Steering Locks & Turning Circle. We thank you for your Hs2"LG7.2.24, and in view of the trouble you have experienced on the… | ||
| Scan041 | Instructions regarding front wheel and steering dimensions for the 20-HP model. | ||
| View original record | -2- (c) There is no similar adjustment which can be made on the 20-HP. It is essential therefore that some instructions should be given to the works giving definite dimensions between the rim of the… | ||
| Scan042 | Turning circles of long and short chassis, and modifications to improve the lock. | ||
| View original record | CJ. from Hs. 4980 Hs3/LG22. 2.24. TURNING CIRCLES. With reference to CJ3/E8. 2.24. The EAC.111. long chassis will have proportionately greater turning circle than the EAC.111. short chassis. This… | ||
| Scan043 | Turning circles with the latest EAC.111 Axle compared to the standard long chassis. | ||
| View original record | R.R. 493A (20H) (D.A. 652 20-5-24) J.H.D. EXPERIMENTAL REPORT. To R. from Hs. c. to CJ. RG. c. to DA. E. c. to BY. WOR. 4980 Expl. No. 980 9420 REF: Hs12/LG12.5.24. S E C R E T. E.A.C. 111. On the… | ||
| Scan044 | Confidential memo from B.J. to E.A.C. inquiring about the turning circle of the E.A.C.2. | ||
| View original record | To Hs. from B.J. /980 BJ22/H15.5.24. CONFIDENTIAL. E.A.C. Do we know what is the turning circle of the E.A.C.2 will be, please? B.J. | ||
| Scan045 | Secret memorandum specifying the turning circles for the EAC.11 model, referencing the EAC.111. | ||
| View original record | 4980 BJ. from Hs. S E C R E T. Hsl/LG17.5.24. EAC. TURNING CIRCLES. With reference to BJ22/H15.5.24. The turning circles of the EAC.11. will be the same as EAC.111 - which are as follows :- Left hand… | ||
| Scan046 | From GWH to Mr. Hives detailing the turning circles for the 98-NK car. | ||
| View original record | Mr. Hives from GWH. 1980 21.5.24. 98-NK CAR. TURNING CIRCLES. L.H. 48.1 ft. R.H. 49.8 ft. This is with 6° angle front axle giving 39° lock. GWH. | ||
| Scan047 | The changes in turning circles for a 20 HP model due to a new steering system. | ||
| View original record | To CWB. from Hs. c. to DA. c. to R. X980 Hs3/LG15.4.26. 20 HP. STEERING LOCK. X5430 X.980 CWB2/GM12.4.26. Below we give turning circles of 20 HP. fitted with front wheel brakes and the reduction when… | ||
| Scan048 | Average turning circles for Phantom cars. | ||
| View original record | x980 Hs. from Mx. April 1929. Herewith figures for the average turning circles of Phantom cars : R.H. 54 ft. 10 ins. L.H. 49 ft. Mx. | ||