Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box ExFiles\Box 17\3\        Box Selection

IdentifierEntry
Scan001 Drawings for a modified hollow dashboard and steering adaptations for a chassis.
View original record To EY. from DA. c. to CJ+ Hs. +7430 DA6/M22.10.25. EAC. 8. DASHBOARD. X.7500 X.7430 We send herewith N.sch.2069 (two sheets) shewing the hollow dashboard for the above chassis. It is set out for 'B'…

Scan002 Introduction of a stepped dashboard to improve steering column support and its effect on scuttle room.
View original record To CJ. & BJ. from R. c. to LHS. BY. c. to Hs. DA/EV. Y7430 R2/M11.11.25. BODY MATTERS - EAC.8. X.7830 STEPPED DASH ETC. X.7500 X.7430 Regarding the stepped dashboard our reason for introducing it is…

Scan003 Observations on car body design, seating arrangements, tyres, and suspension.
View original record contd :- -2- the waste room in body length, but it was particularly noticeable on Mr. Arthur Gibb's car, where the back of the front seats came straight up and down, and has/cupboard for the side…

Scan004 Use of balloon and ordinary tyres on the 20 HP and Phantom models.
View original record contd :- -2- Personally I am using balloons on the 20 HP. and ordinary tyres at 40 lbs. pressure on the Phantom, and, going as fast as the roads will allow, any harder tyres feel like solids to me. R.

Scan005 New lighter front axle and steering arrangements for the Phantom model.
View original record To BY. from R. c. to CJ. BJ. c. to DA. Hs. +7430 R3/M25.11.25. EAC.7. NEW LIGHTER FRONT AXLE. X.7420 X.7980 X.7430 DA. hopes shortly to send you the new front axle which is intended for this chassis.…

Scan006 The arrangement of the steering column in the frame and future modifications.
View original record X. 7430 To BY. from DA. c. to CJ. Hs. DA5/M27.11.25. EAC.7. STEERING COLUMN MOUNTING. We send herewith N. sch. 2092. shewing the arrangement of the steering column in the frame. The interior of the…

Scan007 Modifications to the steering box and rocker shaft.
View original record To BY. from DA. cc to CJ. Hs. X. 7430 DA4/ML.12.25. EAC. 7. STEERING. Herewith we send N.sch.2097 shewing further modifications to the steering box, rocker shaft etc. brought about by the alteration…

Scan008 Modifications to the front axle, steering levers, and associated components, including changes to bolt sizes.
View original record Ro BY. from DA. c. to CJ. Hs. X7430 DA4/M19.12.25. EAC. 7. FRONT AXLE. X.7420 X.7430 We send herewith N.sch.2109 shewing the forging for the front axle, and also the modification to the steering…

Scan009 Dispatch of a front axle drawing (N.sch.2102) with details on steering connections and clearances.
View original record +7430 To BY. from DA. c. to CJ. Hs. DA5/W/19.12.25. EAC. 7. FRONT AXLE. X.7420 X.7430 We send herewith N.sch.2102 which we had prepared when the elliptical section was being worked on, but it was held…

Scan010 Modifications required to adapt the dashboard for 'C' and 'D' type steering.
View original record +7430 To BY. from DA. c. to CJ. Ms. DA3/M8.1.26. EAC.8. DASHBOARD - 'C' & 'D' TYPE. X.7500 X.7430 We send herewith N.sch.2106 shewing the modifications which are required to adapt the dashboard to 'C'…

Scan011 Modifications to the dashboard casting for 'C' & 'D' type steering columns.
View original record To BY. from DA. c. to CJ. Hs. X. 7430 DA3/M22.1.26. EAC. 8. STEERING - 'C' & 'D' TYPE. As promised yesterday, we send herewith N.2127 shewing the slight modifications to the dashboard casting required…

Scan012 Revised steering position drawing N.sch. 2126 for a steering box with a large worm.
View original record To BY. from DA. c. to CJ. Hs. X. 7430 DA2/M22.1.26. EAC. 8. STEERING POSITIONS. Herewith we send N.sch. 2126 shewing the steering positions drawn out again to suit the steering box with a large worm.…

Scan013 Minimum alterations required for the dashboard to accommodate a large worm box.
View original record To BY. from DA. c. to CJ. Hs. X7430 Da4/M22.1.26. EAC. 8. DASHBOARD. X.7430 X.7500 Herewith we send N.sch.2128 shewing the minimum of alteration which we think will be required to allow for the column…

Scan014 Alternative arrangements for a damped pendulum lever, awaiting final approval from Mr. Royce.
View original record To BY. from DA. c. to CJ. Hs. X.7430 DA1/M26.1.26. EAC.7. DAMPED PENDULUM LEVER. We send herewith N.schs. 2124/5 which are alternative arrangements for the damped pendulum lever. The arrangement is…

Scan015 Modifications for the EAC.7 dashboard and steering support due to differences from the EAC.8 model.
View original record To BY. from DA. Cc to - BJ. HS. X7430 DALM. 2.6.26. EAC.7. DASHBOARD AND STEERING SUPPORT. -X. 7430. X7500 On looking into this question on EAC.7. we find we cannot use exactly the same cast dash as…

Scan016 Design of a stepped cast dashboard and modifications to the steering column support.
View original record To Hs. from R. c. to BJ. Wor. c. to BY. +7430 R6/M10.6.26. EAC. 8. DASHBOARD. X.7500 X.7430 The stepped cast dashboard appears to be a decided improvement, and should its extra stiffness not result in…

Scan017 Improvements to the steering on model EAC.8 using a lighter front axle.
View original record TO HS. FROM R. Copy to - BJ. " - WOR. " - BY. " - PN. " - CWB. X7430 R13/M.10.6.26. EAC.8. STEERING WITH LIGHTER FRONT AXLE - X.7420. X 7450 Regarding the steering on EAC.8. this seemed to be vastly…

Scan018 Proposed modifications to the steering column stay on an EAC. 8 chassis cast dash.
View original record +7430 To BY. from DA. c. to BJ. Hs. DA4/M12.6.26. EAC. 8. CAST DASH. X.7500 X.7430 When R. inspected the EAC. 8. chassis on Tuesday last he wished to modify the position of the steering column stay to…

Scan019 Requesting information on the body type for the first EAC.V11 chassis to proceed with steering design.
View original record To DA/EV. from Hs. x7430 Hs3/LG17.6.26. BODY FOR EAC-V11. x7830 Could you please let us know what type of body it is proposed to fit to the first EAC.V11 chassis. It would appear that it should be an…

Scan020 Improvements and required modifications for a prototype vehicle based on road testing.
View original record To Hs. & BY. from R. c. to BJ. Wor. c. to PN. CWB. X7430 R2/M26.6.26. 12-EX X.7940 X.7430 X.7770 X.7410 This is a fine car in many ways than previously. One can feel the definite improvement in the…

Scan021 Test drive report for car 12-EX detailing feedback on steering, automatic advance, engine vibration, and other components.
View original record To Hs. from R. c. to BJ. c. to Wor. c. to By. X7430 RL/M22.7.26. 12-EX. X.7940. X.7430. X.634. X.7685. I drove 12-EX to London, and thought, while the steering was extremely light and easy, it may be…

Scan022 Steering wheel vibrations on the 12-EX car, proposing an experiment to address the issue.
View original record X7430 To CWB. from Hs. HS5/LG23.7.26. 12-EX CAR. X7940 X7430 We attach herewith a list of experimental pieces fitted to this car. One point we should particularly like…

Scan023 The lightened front axle on the 12-EX car and a complaint investigation.
View original record To FN. from Hs. c. to Wor. x7430 Hs3/LG12. 8. 26. 12-EX - EAC-Vlll. x7940 Replying to PNA/HW10.8.26. 12-EX car is fitted with the new lightened type front axle. Otherwise the steering is the same as…

Scan024 Investigation of steering troubles on the 12-EX car in France.
View original record To R. from Hs. c. to BJ. Wor. c. to E. Da. c. to BY. X7430 Hs1/LG13. 8.26. 12-EX CAR - STEERING. X7940 Hs/Rn. has gone to France to investigate the steering troubles reported on the above car. As the…

Scan025 High-speed wobble and road shock tests for the 12 EX - EAC VIII, detailing axle and tyre performance.
View original record To "H.S." From "R.M." Hotel de France, Chateauroux, Indre, France. August, 14th 1926. 12 EX - EAC VIII. We have now almost completed our test on high speed wobbles on 12 EX-EAC VIII. Incidentally, we…

Scan026 Report comparing the effects of tyres, shock dampers, and steering settings on vehicle wobble.
View original record - 2 - A . - COMPARISON of TYRES. (I). - Dunlop 33x6" triple stud well worn; tendency to wabble 65 - 58 MPH. (II). - Ditto absolutely new treads. Reduction in (I) wabbles 20%. (III).- Michelin 33x6.8…

Scan027 Steering friction, with proposals for stronger front springs and adjustments to hydraulic dampers.
View original record - 3 - The conditions in D means that there is no movement of the cross steering tube ball until wear takes place. Then the springs follow up the wear. The amount of friction we got on the steering by…

Scan028 The effects of toe-in, friction on steering, and spring controlled steering movement.
View original record GENERAL CONDITIONS. (continued). C .-. EFFECT of TOE-IN. Dunlop 33x6" Triple Stud well worn tyres at 35 Lbs per Sq.I. (I). Parallel wheels. (II). 1.00" Toe In. D .-.EFFECT of FRICTION ON STEERING.…

Scan029 Vehicle wobble intensity tests comparing different tyres and dampers.
View original record GENERAL CONDITIONS. Standard S.S.Tube, 3500 S.S.Springs, solid cross steering tube; parallel wheels, shock dampers 75 & 35Lbs, tyres, pressure 35 LbsSq.I. Wheels balanced. Any deviation from this in…

Scan030 Letter discussing the despatch of springs, modifications for the 12-EX axle, steering quality, and tyre recommendations.
View original record X/7430 Expl: Dept: Rolls-Royce Ltd., Derby Angleterre. 16th. Aug. 1926. Hotel de France, Chateauroux, Indre, France. SOX7940 Rm. from Hs, Many thanks for your reports. We have despatched to you a pair…

Scan031 Communication regarding traction tyres from Dunlops, steering compromises, and the dispatch of a friction device.
View original record contd :- -2- some traction tread tyres (either the 6" or 6.75" whichever you require) from Dunlops in Paris. It would be very unwise however for us to rely on the traction pattern tread to get us out…

Scan032 Request for a report about steering troubles on car reference HS1/LG13826.
View original record TO HS. FROM DA. X7430 DA1/M18.8.26. 12-EX. Referring to HS1/LG13826., we have not seen any report about steering troubles on this car, and if possible should very much like to see a copy of any…

Scan033 Test on out of centre point steering and its effects on shocks and wobbles.
View original record 47430 To Hs. from Hs/Rn. Hs/Rm3/LG18. 8. 26. OUT OF CENTRE POINT STEERING. X7430 X.7810 Whilst at Chateauroux we found that we had two types of wheel available - one, a mild type which gave the…

Scan034 Steering wobble issues in the 12-EX car, tracing the cause to Dunlop balloon tyres.
View original record To Wor. from Hs/Rn. Hs/Rn1/LG18. 8. 26. 47430 12-EX CAR. X235 X7940 Replying to BJ12/D16. 8. 26 attached. We have carried out a number of tests on the steering of 12-EX car in France. We find that the…

Scan035 Phantom steering issues, attributing the problem to balloon tyres and proposing a hydraulic damper solution.
View original record To Hs. from R. c. to BJ. Wor. c. to BY. DA. X7430 RL/M18.8.25. 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…

Scan036 Layout and modification of a side steering tube.
View original record X. 7450 To BY. from DA. c. to CJ+ HS. DA1/M13.11.25. EAC. 8. SIDE STEERING TUBE. We send herewith N.sch.2088 shewing the layout of the side steering tube on the above chassis. We did this in order to…

Scan037 Steering improvements for the EAC.S model, involving a lighter front axle, spring-loaded steering joints, and a different buffer spring.
View original record TO HS. FROM R. X7450 R13/M.10.6.26. Copy to - BJ. " - WOR. " - BY. " - PN. " - CWB. EAC.S. STEERING WITH LIGHTER FRONT AXLE - X.7430. X7420 Regarding the steering on EAC.S. this seemed to be vastly…

Scan038 Experimental information on steering and dampers for the 12-EX, exhaust cutouts for the 20 HP, and battery ignition points.
View original record To Wor. from Hs. x7430 x7940 The following is the experimental information in connection with the points given below :- (1) What is the position as regards the tests made on 12-EX in France as regards…

Scan039 Central lubrication scheme for the New Phantom.
View original record contd :- -2- (4) Chassis lubrication. There is no scheme going through for central lubrication. We are however keeping in touch with Springfield on this matter because they have standard-ised it when…

Scan040 Completion of mileage for the 12-EX car and subsequent steering experiments in France.
View original record x7430 CWB. from Hs. Hs2/LG20.8.26. 12-EX CAR. x7940 We anticipate that 12-EX will have completed 9,000 miles running either on Tuesday or Wednesday next (24th./25th. Aug.) When that mileage is…

Scan041 Steering troubles on car 12-EX and a proposed solution of adding friction to the pivots.
View original record To HS. from DA. X7430 DA1/M20.8.26. 12-EX - STEERING. X.7430 X.7420 We have now seen Hancock's daily reports about the steering troubles on this car , but so far we have not seen any further comments.…

Scan042 Investigation into steering wobble issues on car EAC-V111, attributing them to Dunlop tyres and a new axle.
View original record To R. from Hs/Rm. c. to BJ. Wor. c. to RG. E. c. to DA. BY. c. to OY. X7430 Hs/RmL/LG20.8.26. 12-EX - EAC-V111. STEERING. Our investigations on EAC-V111 have shewn us that there were two main reasons…

Scan043 High-speed wobble issues, comparing different tyre types and the effect of dampers on steering performance.
View original record contd :- -2- at 35 lbs/sq.in. we should have expected the period to extend to 50 m.p.h. with the standard axle. It should be clearly understood that the car was not wobbling in the true sense of the…

Scan044 Tests on steering friction, cross steering tubes, and hydraulic dampers to reduce high and low-speed wobbles.
View original record contd :- -3- We tried various quantities of friction by loading up the cross steering tube ball ends with springs of various strength. The method of measuring the friction was to jack up the front…

Scan045 Tests to improve high-speed steering control, reduce wobbles, and enhance ride comfort through load balancing and tyre selection.
View original record contd :- -4- high speed wobbles, we know that any loading above 100 lbs. is likely to effect low speed riding. Therefore we cannot go very far on this side. We have not yet been able to test an…

Scan046 Findings on steering, front springing, and the performance of a new axle with various wheels and tyres.
View original record contd :- -5- Out of centre point steering. We found some old type Dunlop well base wheels which give a tyre point of contact 1/4" nearer centre point than the present standard well based wheels. We…

Scan047 Steering and suspension improvements for the 12-EX car, with a plan for further tests.
View original record contd :- -6- tyres, hydraulic dampers and a spare wheel on the rear, are a very great improvement. 12-EX certainly rode better than any 40/50 HP. car we have ever tried. Actually, although we only…

Scan048 Steering tests conducted in France on a new front axle and side steering tube springs.
View original record To R. from Hs/Rn. c. to BJ. Wor. c. to RG. E. c. to DA. BY. c. to OY. Hs/Rml/LG21.8.26. EAC-Vlll - STEERING. During our recent tests in France on the new type front axle, we were able to conduct a…

Scan049 Steering performance tests, analysing the effects of different spring strengths on road shock absorption and driver control.
View original record Contd :- -2- starts from O in every case no matter what set up is employed. This means that when weak springs are fitted to absorb road shocks the steering becomes spongy as the drivers hand moves…

Scan050 New arrangement of a side steering tube with spring-based shock absorption.
View original record contd :- -3- New arrangement of side steering tube. We have arranged a side steering tube to give an initial set up as you suggested some time ago. In the new arrangement of side steering tube…

Scan051 Summary report on steering and suspension arrangements, comparing performance on different road types.
View original record contd :- -4- nibbles do not cause discomfort, but they are not nice. If a tyre has a tendency to wobble either due to out of balance or out of truth, these nibbles become rather irritating. Steering…

Scan052 Series of graphs showing various side steering tube spring arrangements and load/deflection characteristics for the Phantom model.
View original record SIDE STEERING TUBE SPRING ARRANGEMENTS PHANTOM I SPRING RATING 3500 LBS SET UP .187" LOAD LBS DEFLN INS. SPRING RATING 1750 LBS SPRING RATING 3500LBS LIMIT OF BALL MOVEMENT .187 TOTAL SETUP BOTH ENDS…

Scan053 The reverse of a document showing a red stamp from the Print Room in Derby.
View original record ROLLS-ROYCE LIMITED. PRINT ROOM 23. JUL. 1926 DERBY.

Scan054 Technical drawing detailing a packing washer assembly for a front end, with various spring and washer configurations.
View original record F.75379 PACKING WASHER AS FOR FRONT END (F.75390/1/2/3) FURTHER PARTICULARS OF BALL PADS AS ON F.4969. F.75383 TO FRONT OF CHASSIS F.75386 F.75381 F.9875 FOR FURTHER PARTICULARS OF THIS PIECE SEE…

Scan055 Steering performance, axle modifications, and shock absorbers on the 12-EX model.
View original record To Hs. from R. c. to BJ. Wor. c. to DA. CWB. c. to EY. PN. OY. X7430 RE. STEERING ON 12-EX. X.7430 X.7420 X.235 I understand you agree to the following :- SUBJECT TO PROMPT CORRECTION IF INACCURATE.…

Scan056 Steering difficulties on the 12-IX model, related to tyre size, shock absorbers, and axle design.
View original record [Handwritten:] Hs, X7430 [Typed:] BJ2/D23.8.26. To P.H. from B.J. c. to W. [strikethrough] c. to W.F. c. to Hs. c. to BY. c. to C.M.B. Steering on 12-IX. I have discussed this matter with R. and later…

Scan057 Steering improvements on the 12-EX car, focusing on hydraulic dampers, steering geometry, and the impact of tyres on wobbles.
View original record To R. from Hs. c. to BJ. Wor. c. to DA. BY. c. to PN. CWB. c. to CY. E. X7430 Hs1/LG23.8.26. STEERING ON 12-EX CAR - R1/M20.8.26. Y235 We are satisfied that the new front axle and the hydraulic…

Scan058 Preference for 6.75 inch tyres over 5 inch tyres, despite an increased risk of wobbles.
View original record contd :- -2- free from the risk of wobbles. We are still keen on the use of 6.75" tyres. If we were owners of R-R cars, we would much prefer 6.75" with the slightly increased risk of wobbles, than the…

Scan059 Requesting a closed car to be adapted with a new light axle, tyres, and hydraulic shock-absorbers for a steering test on car 12-EX.
View original record X7430 PN4/DN23.8.26. TO Hs FROM P.N. Steering on 12-EX. Referring to BJ2/D23.8.26, of which a copy has been sent to you, would you please let me know whether you happen to have a closed car which…

Scan060 Sending a Phantom car, chassis 8-EX, to London, fitted with a lightened front axle and hydraulic shock dampers.
View original record X7430 To PN. from Hs. C K B J. Hs3/LG25. 8. 26. STEERING ON 12-EX CAR. PN 4/DN 23.8.26 We will arrange to send a covered Phantom car to London on Friday the 3rd. Sept. This car will be fitted with the…

Scan061 Mr. Royce's disapproval of a submitted Phantom Steering scheme and the next job concerning a spring design.
View original record To Hs. from Da. X7430 Da3/M26. 8.26. PHANTOM STEERING. X.8430 X.7430 X.8450 With reference to Hsl/T21. 8.26., Mr. Royce does not quite approve of the scheme submitted, and we are making a drawing…

Scan062 Outlining plans to road test a modified Phantom car in France, focusing on the cooling system and front axle.
View original record X7430 PN9/DN26.8.26. TO Hs c. to BJ FROM P.N. Steering on 12-EX. I have received your Hs3/LG25.8.26 and note that you will send a covered Phantom car to London on Friday the 3rd xxxx prox., which will…

Scan063 Letter from Chateauroux, France, discussing testing delays and feedback for a new axle on car 8-EX.
View original record X7430 Expl: Dept: Messrs. Rolls-Royce Ltd., Derby, England. X8420 31st Aug. 1926. Hotel de France, Chatearoux, Indre, France. Rm. from Hs. I am afraid we shall not be able to give you much information…

Scan064 Preliminary steering and damper setting tests for the 12-EX car.
View original record To R. from Hs/Rm. c. to BJ. Wor. c. to E. Da. c. to BY. X7430 Hs/Rm1/LG1.9.26. 74565 (crossed out) 7457 12-EX CAR - STEERING TESTS. Below are preliminary tests received from Hs/Rm. in France on the…

Scan065 Tyre performance and its effects on vehicle steering and handling, including a graph of selectiveness versus tyre pressure.
View original record contd :- -2- noted that though we have some 6.75" tyres worn to the canvas and very uneven, they will not wobble even with no dampers. Another point of interest is that unless we add a lot of friction…

Scan066 Vehicle suspension issues related to wandering, insufficient damping, and the effect of oil viscosity.
View original record contd :- -3- wheel increase. Possibly it is the effect they have on the main pivot lean as 1" on the rear = ½° pivot lean approximately. We are more or less convinced that a large proportion of the…

Scan067 Delay in completing steering tests on the 12-EX experimental car.
View original record To B.J. from Hs. c. to CWB. X7430 HsB/LGL.9.26. 12-EX CAR. X7940 It is probable that Hs/Rm. will not have completed the steering tests on 12-EX car for another week. We are very anxious that he should…

Scan068 On steering tests in France detailing the decision to abandon a new side steering tube due to control issues during emergency braking.
View original record To R. from Hs/Rn. c. to BJ. Wor. c. to E. Da. c. to BY. X7430 Hs/Rnl/LG2. 9. 26. 12-EX - STEERING TESTS IN FRANCE. X7450 X7820 We have abandoned the idea of recommending [improving crossed out] the…

Scan069 Results of testing various Dunlop and Michelin tyres on a standard axle.
View original record contd :- -2- with advantage to give greater control on covered cars. We have tried out the new 6" traction tread Dunlop tyres just received. While not quite as bad as the triple stud type, they…

Scan070 Telegram providing engineering recommendations for vehicle components.
View original record POST OFFICE TELEGRAPHS. No. 0379. Office Stamp: DERBY, 2 SEP 26. Handwritten Reference: X7430. RECEIVED At 7.8 A.M. From L.V. Words: 32. Message: ACL TLR Chateauroux 2nd. Hives Roycar Derby…

Scan071 Telegram from Chateauroux concerning an adjustment to side tube springs.
View original record Chateauroux Hives 2 side Tube springs thirtysecond more movement Rowbotham

Scan072 Revised 1500 lb. side steering tube springs to address overstressing issues.
View original record To BY. from DA. c. to BJ. Hs. X7450 DA3/M3. 9. 26. SIDE STEERING TUBE. X. 8430 X. 8450 X. 7450 We send herewith N.sch.2258 shewing revised 1500 lb. side steering tube springs, which have been done…

Scan073 Proposing a modification to the Phantom steering system by using a slower pitch worm gear.
View original record X7430 To EY. from DA. c. to BJ. HS. DA4/M4.9.26. PHANTOM STEERING. X.8430. X.7430. For meeting customers complaints on existing cars and possibly for future standardisation if found a sufficient…

Scan074 Request for a summary of reports on wheel wobble and steering issues from a 10,000-mile test of low-pressure tires on Phantoms.
View original record X7430 To Hs. from BJ. Low Pressure Tyres on Phantoms. BJ9/E6/9/26 We have sent the daily report of the 10,000 miles test of 12-EX to CWB in France, also the summary of these reports. Please let me…

Scan075 The performance of 6.75' Balloon Tyres, addressing issues like high-speed wobble and ride comfort.
View original record To B.J. From Hs. X7430 Hs2/LG9.9.26. 6.75" BALLOON TYRES. X7430 X4565 4457 With reference to the attached reports. Up to that dated 16.8.26, the car was run with the 6.00" Dunlop tyres. These tyres we…

Scan076 Duplication of tests on Continental roads.
View original record contd :- -2- Continental roads. We consider it is a pity that both PN. and CWB. are simply repeating the tests on the same cars as we have already tested. In our opinion it would have been a very much…

Scan077 Log sheet detailing steering performance issues and adjustments on the 12-EX car.
View original record 12-EX CAR - STEERING. Date. | Mileage. | Reference to Steering. --- 2.8.26 | 504 | Steering on moderate and rough roads was fair, severe shocks on steering at times were felt at speeds between 60 & 70…

Scan078 Log of steering performance observations with corresponding dates and mileage.
View original record -2- Date. | Mileage. | Reference to steering. 10.8.26 | 4051 | Standard cross steering tube fitted - steer-ing better for absence of inclination to wobble at high speeds, but road shocks are worse!…

Scan079 Extract detailing tests and observations on the steering system of the 12-EX car.
View original record 12-EX CAR - STEERING. Extract from GWH1/RP19.8.26 :- STEERING COLUMN & BOX. 'D' type steering to N.sch.2107/27/28 using pendulum lever F.74278 to suit lightened front axle. Modified support bracket to…

Scan080 Steering performance, tyre issues, and the condition of the steering column and box.
View original record contd :- -2- Our opinion of the steering as left by Hs/Rn. is that at high speeds on good roads it is not so good as previously with 6.75" tyres by 10% for selectivity. There are no inclinations to…

Scan081 Standardized method for measuring steering friction on axles, with comparative test results.
View original record To DA. from Hs/Rn. c. to EY. c. to HS/AJL. X7430 Hs/Rn7/LC10.9.26. STEERING. X7430 We have adopted a standard method of measuring friction in the pivots and friction in the linkage on axles. (A) To…

Scan082 Cover memo for a report on tests conducted in France on a lightened type front axle for the Phantom model.
View original record To R. From Hs/Hs. c.c. to BJ. Wor. c.c. to RG. E. c.c. to DA. BY. c. to OY. X7430 Hs/RM5/LG20.9.26. PHANTOM - LIGHTENED TYPE FRONT AXLE. X7420 Attached is a report of tests made in France with the…

Scan083 Summary of tests on a lightened front axle, comparing it to a standard axle across various performance metrics.
View original record Hs/Rm4/LG20:9.26. TESTS ON LIGHTENED FRONT AXLE. (C.74294) SUMMARY: 1. COMPARISON - STANDARD V. LIGHTENED AXLE: a. Lightness. b. Selectiveness. c. Road shocks. d. High speed wobbles. e.…

Scan084 Performance comparison report between a standard front axle and a new lightened front axle.
View original record -1- 1. STANDARD V. LIGHTENED AXLE. (a) Lightness. The new front axle when compared with a standard front axle on 12-EX, even when the necessary friction had been added to give good high speed control,…

Scan085 Report page detailing tests on low speed wobbles, friction in the steering, and tyre configurations.
View original record contd :- -2- that we can see the reason for this as explained elsewhere. (f) Low speed wobbles. As finally arranged for test by Sales, the new axle was quite free from low speed wobbles with the large…

Scan086 Report page evaluating vehicle steering, suspension, and the performance of different tyre types and pressures.
View original record contd :- -3- steering tube, give quite satisfactory steering if accurately balanced with front shock dampers at 40 and 80 lbs. The badly worn examples we have shew no signs of wobbling under these…

Scan087 Report page detailing tests on tyre behaviour, pressures, car control, and shock damper settings.
View original record contd :- -4- advantages. We cannot therefore see any argument in favour of their adoption. The behaviour of the tyres fitted with the triple stud tread was perceptibly worse than with the traction…

Scan088 Test report page detailing vehicle suspension settings and their effects on anti-wobble, road holding, and steering characteristics.
View original record contd :- -5- transmitted to the wheel at critical speed with the worst tyres. Front of car riding rather harsh owing to excessive rebound loading. 55 lbs. up - 100 down. Slightly more effective…

Scan089 Report page detailing tests on steering feel, high-speed wobble, shock absorption, and front road springs.
View original record contd :- -6- as they appear to come choc-a-bloc before the ball reaches the end of its spring controlled travel. 1500 lbs. A very marked improvement. On 12-EX no real complaint of lack of control can…

Scan090 The performance of Lemoine 1250 and 1300 lbs springs.
View original record contd :- -7- (b) Lemoine 1250 and 1300 lbs. springs. These springs looked stronger than their poundage indicated. They appear to effect a definite slight reduction in high speed wobble tendency, and…

Scan091 Comparison of load versus deflection graphs for singly arranged and double rating spring systems.
View original record B. SINGLY ARRANGED SPRINGS INITIAL LOAD 80 LBS RATING 750 LBS / 1" LOAD LBS RATING 750 LBS SET UP 100 LBS DEFLECTION INS LIMIT OF BALL MOVEMENT C SET UP AND INITIAL DOUBLE RATING SPRINGS COMPROMISE…

Scan092 Largely blank page with a library stamp in the bottom right corner.
View original record ROLLS-ROYCE LIMITED. PRINT LIBRARY 20 SEP. 1926

Scan093 Steering pivot friction, detailing issues with high and low-speed wobbles observed during tests on the New Phantom axle compared to the 20 HP model.
View original record To R. from Hs/Rm. c. to BJ. Wor. c. to RG. E. c. to BY. DA. X7430 Hs/Rm2/LG20.9.26. EAC. STEERING. FRICTION IN PIVOTS. X457 In our recent tests in France we have observed that the friction in the…

Scan094 Tests on a new axle pivot arrangement to improve steering performance and reduce wobbles.
View original record contd :- -2- strengths and set up in the cross steering tube. We have carried out a number of tests varying the ball end load and find that with the new axle pivot arrangement a range of from 5 to 9…

Scan095 Test report on an experimental axle with vertical king pins, comparing it to a standard V-series axle.
View original record To R. from Hs/Rm. c. to BJ. WcF. c. to RG. E. c. to SY. DA. c. to UY. X7430 Hs/Rm/L622. 9.26. TESTS ON EXPERIMENTAL AXLE. X7420 X7430 We took a standard V. series axle arranged with vertical king pins…

Scan096 Technical analysis of steering geometry, pivot types, and their effects on stability and road handling.
View original record contd :- -2- of stability, and as previously stated, the immunity from road shocks is very good. When negotiating very sharp bends at any speed, the steering becomes heavy apparently owing to the fact…

Scan097 Steering performance issues, including sluggishness, road shocks, and wobbles.
View original record contd :- -2- with the necessary friction in the steering it becomes very sluggish. The steering is bad for road shocks at all speeds. It is not very definite at high speeds, but cannot really be said…

Scan098 Steering performance and pivot inclination, comparing a new axle design to a previous 'V' series.
View original record To R. from Hs/Rm. c. BJ. Wor. c. Ry. Rg. c. E. Da. c. CY. X7430 Hs/Rml/T22.9.26. EAC.VIII. STEERING. PIVOT INCLINATION. +9420 The new axle gives remarkably light steering. While we expected the…

Scan099 Steering tests comparing a standard axle with a modified version using vertical king pins.
View original record Contd. -2- Hs/Rml/T22.9.26. The most interesting test was that carried out with a standard axle altered to give vertical king pins (5). In this case with a disc wheel giving centre point steering, the…

Scan100 Steering effort, wheel centre position, and testing on a 20 HP axle.
View original record Contd. -3- Hs/Rm1/T22.9.26. shocks, and yet not make the steering appreciably heavier. Normally, if we move the wheel centre 3½" from the king pin the effort required to shunt the car becomes…

Scan101 Comparison of steering effort based on transverse pivot inclination for different axle series.
View original record Attached to:- TRANSVERSE PIVOT INCLINATION OVERALL STEERING EFFICIENCY ASSUMED AS 60% WHEN CALCULATING LOADS ON THE STEERING WHEEL RIM PIVOT ASSUMED VERTICAL IN LONGITUDINAL ELEVATION TO SIMPLIFY…

Scan102 Blueprint comparing different axle and pivot configurations and their effect on steering heaviness.
View original record E.A.C. V SERIES. SILVER GHOST T SERIES EXPT AXLE WITH WIRE WHEELS V SERIES PIVOTS NEW AXLE NEW PIVOTS C2 SERIES EXPT AXLE WITH DISC WHEELS V SERIES PIVOTS Diagram annotations: Diagram 1: 6°, .616…

Scan103 Upcoming steering tests on castor pivots and modifications to rear hydraulic dampers.
View original record To RHC. from Hs/Rn. x7430 Hs/Rml/LG22.9.26. STEERING TESTS. x7420 With reference to the further tests to be carried out on the vertical pivot axle. We wish to try the castor pivots fitted up on this…

Scan104 Desirable friction levels and spring-loaded solutions for Phantom steering.
View original record To CWB. from Hs/Rn. X7430 Hs/Rml/LG23.9.26. PHANTOM - STEERING. X8430 X7420 With reference to the remarks yesterday about friction in the steering. We understand that you agree with us that this…

Scan105 Adjustable spring-loaded friction in the New Phantom steering system.
View original record S/W. Hs. X7430 CWB7/GM/30-9-26. NEW PHANTOM STEERING. Reference your HS/RM/LG23926. I do agree with you that the spring loaded friction in the steering is very desirable and that better results are…

Scan106 Steering shock issues with the .940 worm compared to the 1125 and .720 types.
View original record To HM. from Hs/Rm. X2430 Hs/Rm5/LG30.9.26. .940 STEERING. X2430 With reference to Hml1/W29.9.26. In connection with the trouble experienced by Paris after fitting the .940 steering. We do not agree…

Scan107 Testing of low pressure tyres on Phantom models and their effect on steering performance.
View original record To B.J. from Hs. c. to R. c. to Wor. c. to BY. c. to PN. x7430 Hs2/LG6.10.26. x4565 x8430 LOW PRESSURE TYRES ON PHANTOMS. Replying to BJ1/E23.9.26. The steering on 8-EX car was identical to that…

Scan108 Tyre mileage, the reliability of low-pressure tyres, and the fitting of 6.75 inch tyres.
View original record contd :- -2- therefore the mileage as we would anticipate, was low. Our records shew that we get less than one-half the mileage during the hot weather compared with wet Winter weather. This is…

Scan109 Letter from Dunlop Rubber Co. discussing tyre wear data for various sizes and seasons.
View original record C O P Y. THE DUNLOP RUBBER CO. FORT DUNLOP, ERDINGTON, BIRMINGHAM. Messrs. Rolls-Royce Ltd. Derby. Expl: Dept: Dear Sirs, In reply to yours of the 30th.Sept., we have collected all the available…

Scan110 Standardisation of an anti-rattle device for the steering column controls.
View original record RR 755 REVISED (10H) (DE444 6-10-26) BM. COMPLETED 19.10.26 STANDARDISATION of CHASSIS PARTS. Description of Parts. ANTI RATTLE DEVICE - Fig.1. Origin. To prevent rattle of controls in steering…

Scan111 Requesting a side steering tube be kept for further tests in France, rather than being returned.
View original record To D/BP. from Hs/Rm. 47450 Hs/Rm4/LG24.9.26. RE. CHATEAUDUX. With reference to D/BP/Y447/H3.9.26. We do not want the side steering tube returning, but we require it for further tests in France. Will…

Scan112 Steering tests for the 12-EX model, focusing on wobble under various tyre pressure conditions.
View original record To Hs. from GWH. X7430 GWH/LG15.11.26. X7430 X4565 X457 STEERING TESTS ON 12-EX - WITH THE FOLLOWING CONDITIONS :- 6.75" tyres. Tyre pressure 35, 40, 45 lbs/sq.in. (front) 35 lbs/sq.in. (rear)…

Scan113 Proposed use of a cast dash for the Phantom model, weighing objections and considering related modifications.
View original record 47430 To Hs. E.Y. ) FROM R. c. to BJ. LHS. c. to C. Wor. DA1/M17.12.26: PHANTOM AND CAST DASH. X.8500 X.7260 X.8500 X.7430 We have explained that the proposed bonnet improvements depend on the use of…

Scan114 Instructions for the experimental production and fitting of side steering tube parts for an E.A.C.7 chassis.
View original record X7450 R.H.O. C. Ha/Rm. BY/HEBS/M.8.1.27. E.A.C.7. CHASSIS. SIDE STEERING TUBE SEC:7070 & 7052. Please receive one Blue Print of each of the following:- F.76448 Pendulum Lever. 1 off per chassis.…

Scan115 Overly reversible steering on experimental car EAC-7 and proposing solutions.
View original record To RHC. from Hs/Rm. X7430 Hs/Rm/LG19.1.27. 14-EX STEERING. With reference to the steering of EAC-7. We find that the worm and nut on this car are very reversible, more so than on any of our other…

Scan116 Bench and road tests conducted on a hydraulic steering damper, discussing its effectiveness and further testing proposals.
View original record To R. from Hs/Rn. c. to RJ. Wor. c. to RG. E. c. to DA. BY. c. to CY. [Handwritten]: Y7430 [Stamped]: ROLLS-ROYCE LTD. DERBY Hs/RG5/LG27.1.27. HYDRAULIC STEERING DAMPER. [Handwritten]: X7431 X8431 M…

Scan117 Analysis and test proposal for a hydraulic steering damper, including calculations for joggle and bye-pass requirements.
View original record contd :- -2- We also give a viscosity curve of the oil used at present in the hydraulic dampers. Tests on the Condor pump box shewed us that the back pressure occasioned by forcing liquid through an…

Scan118 Blueprint detailing the performance characteristics of a hydraulic steering damper, including oil viscosity and pressure/flow analysis.
View original record HYDRAULIC STEERING DAMPER Top Graph: OIL TEMP F DEGREES REDWOOD VISCOSITY IN SECONDS. THIN MINERAL COMPRESSOR OIL VISCOSITY 90°F 250 SECS. VISCOSITY 40°F 1600 SECS. RESISTANCE SET UP BY A GIVEN LEAK…

Scan119 Instructing the fitting of a steering damper for model EAC-V11, specifying the springs and leak dimensions.
View original record To RHC. from Hs/Rm. /7430 Hs/Rm4/LG4, 2. 27. EAC-V11 - STEERING DAMPER. Will you please fit up a steering damper for EAC-V11 with springs F.76506. The leak on each side should be .048" dia. as…

Scan120 Steering trouble on the EAC-V11 chassis and a proposal to experimentally fit standard unequal ended springs.
View original record To BY. From Hs/Rn. +7430 Hs/Rn3/LC4. 2. 27. EAC-V11 CHASSIS. +7410 EAC-V11. We are having trouble with the steering. We believe the alteration to the front springs may have some bearing on the…

Scan121 Concerns and tests regarding high-speed steering wobble on the EAC-V11 model.
View original record To R. from Hs/Rm. c. to BJ. Wor. c. to RG. E. c. to DA. BY. X7430 Hs/Rm3/LG16. 2. 27. EAC-V11 STEERING. Y457 We are rather concerned with the steering of this car at high speeds. The steering is quite…

Scan122 Data table detailing the linear movement and inclination of suspension components for various chassis models.
View original record -2- CHASSIS. | LINEAR MOVEMENT OF PEND:LEVER BALL PIN. | INCLINATION OF TUBE IN ELEVATION (AT NORMAL POSITION). | ON FULL REBOUND. | ON MAX: BUMP. | EAC-V11 Original tube. | .525 | .225 | 7 1/4º up…

Scan123 Improvement to the EAC-Vll steering geometry.
View original record To DA. from Hs/Rn. 7430. Hs/Rn3/LG4.3.27. EAC-Vll STEERING. With reference to the improved geometry on EAC-Vll steering. As we mentioned to you while you were here, incorporation of the gland on the…

Scan124 Potential improvements to steering systems, focusing on irreversibility, wobble reduction, and steering speed.
View original record COPY. To Hs/Rm. To Ds. BY. from R. c. to BJ. Worr E. EAC.7 STEERING. It is now considered that the spring geometry must be very accurate, though we found very little benefit when we first made it so…

Scan125 Instruction to fit an oil retaining gland on the pendulum lever for the 12-EX car.
View original record To RHC. from Hs/Rm. X7430 Hs/Rm2/LG7.3.27. We should be obliged if you will arrange to fit the oil retaining gland on the pendulum lever on 12-EX car. Hs/Rm.

Scan126 Steering geometry on the EAC.Vll model, related to front spring modifications and anchorage.
View original record To DA. from Hs/Rm. X9430 Hs/Rm5/LG7.3.27. EAC.Vll STEERING. We find that the modification to the front springs on EAC.Vll is responsible for some of the difference in geometry between this car and…

Scan127 Solutions to steering geometry problems on a vehicle.
View original record To Hs/Rm. from DA. X. 7430 DA4/M8.3.27. EAC.7. STEERING. We quite appreciate that you want to deal with the geometry troubles on this car by adding friction to the steering column, but as the question…

Scan128 Modifications to the 'Phantom D' steering arrangement for a shorter leg reach.
View original record X7430 [Stamp: ORIGINAL] TO C [struck through] FROM DA/EV. DA/EV1/M11.3.27. Copy to --- HS. PHANTOM 'D' STEERING. X-7430 [handwritten over text] We agree that neither EAC. 7. or 8. will give a 'D'…

Scan129 Proposals and modifications for improving steering geometry.
View original record X. 7430 To BY. from DA. c, to BJ. Hs/Rn. DA4/M12.3.27. EAC.7. STEERING GEOMETRY. Herewith we send N.schs. 2375 and 2377 on which we have made suggestions for improving the geometry of the above…

Scan130 Steering geometry and the damped pendulum lever to address high and low-speed wobbles and shimmy.
View original record Y7430 To R. from Hs/Rn. c. to BJ. Wor. c. to RG. E. c. to DA. STEERING. 4457 With reference to R3/MS.3.27. (1) EAC.Vll GEOMETRY. From our tests on this chassis, we do believe that on a big car capable…

Scan131 Improving steering systems, addressing wobbles, and the concept of irreversible steering.
View original record contd :- -2- If we introduce spring loaded friction into the pivots or cross steering tube on the other hand we reduce both low and high speed wobbles. On the new type axle as at present arranged we…

Scan132 Improving steering performance by adjusting friction placement and spring centring.
View original record contd :- -3- However, increasing the dimensions of the worm and nut should result in consistency over a greater period. We are convinced that we can demonstrate that friction incorporated on the…

Scan133 Rejecting proposed alterations to the steering system, specifically a lower gear ratio.
View original record Hs. from Hs/Rn. X7430 Hs/Rn4/LG15.3.27. STEERING. You will see by the attached note from R. that he is advocating a damped pendulum lever and lower geared steering. We want neither of these…

Scan134 Spring geometry, damping friction, and proposed improvements to the steering system.
View original record COPY To Hs/Rm To Ds. BY. from R. c. to BJ. Wor: E. EAC.7 STEERING. It is now considered that the spring geometry must be very accurate, though we found very little benefit when we first made it so on…

Scan135 Technical report discussing steering geometry and the effects of a damped pendulum lever on high and low-speed wobbles.
View original record To R. from Hs/Rm. c. to BJ. Wor. c. to RG. E. c. to DA. BY. Hs/Rm5/LG14.3.27. STEERING. With reference to R3/M6.3.27. (1) EAC.V11 GEOMETRY. From our tests on this chassis, we do believe that on a big…

Scan136 Improving steering systems by addressing wobbles, exploring irreversible steering, and noting component deterioration.
View original record contd :- -3- If we introduce spring loaded friction into the pivots or cross steering tube on the other hand we reduce both low and high speed wobbles. On the new type axle as at present arranged we…

Scan137 Report discussing the effectiveness of friction in the steering system to improve shock absorption and reduce sponginess.
View original record contd :- -3- However, increasing the dimensions of the worm and nut should result in consistency over a greater period. We are convinced that we can demonstrate that friction incorporated on the…

Scan138 Outlining eight potential improvements for vehicle steering systems.
View original record To HS. DA. BY. from R. c. to BJ. Wor. CWB. PN. E. X7430. R3/M22.3.27. STEERING - GENERAL. X.8430 X.5430 X.7430 Z.235 We have now many items to make this better - 1) Increased irreversibility: Nearly…

Scan139 List of favoured and avoided design combinations for a steering system.
View original record contd :- -2- you to pick out the best combination. I favour - Very small extra complication and cost. (a) Just irreversible worm when worn to good bedding. (b) Damping by ball ends and pendulum lever.…

Scan140 Two ideas for improving steering geometry and reducing wobbles.
View original record X. 7430 Hs/Rm. DA. EY. from R. c. to BJ. Wor. E. RA/M22.3.27. EAC. 7. STEERING GEOMETRY. Two ideas pass through my mind - (1) Surely from all our experiences it is good to damp the elasticity which is…

Scan141 Improvement of steering geometry by comparing the 'bump' and 'rebound' characteristics of the Phantom and EAC.7 models.
View original record To Hs. from DA. COPY. X7430. DA3/ML.4.27. EAC.7. STEERING GEOMETRY. X5430 We are working on an arrangement of the EAC.7 steering which will combine the two previous proposals with a view to getting…

Scan142 Continued note on modifications to the EAC.7 geometry concerning the ball pin on the axle lever.
View original record contd :- -2- this it will be seen that the EAC.7. geometry as actually fitted up is considerably worse than we originally intended, due to slight modifications which occurred afterwards, including the…

Scan143 Development of steering geometry for the EAC.7 model, comparing it with Phantom and India models.
View original record To Hs. from DA. 7430 DA3/M1.4.27. EAC.7. STEERING GEOMETRY. X. 7430 X. 5430 We are working on an arrangement of the EAC.7. steering which will combine the two previous proposals with a view to getting…

Scan144 Continuation page discussing issues with modifications to the ball pin on the axle lever.
View original record contd :- -2- fitted up is considerably worse than we originally intended, due to slight modifications which occurred afterwards including the ball pin on the axle lever. DA.

Scan145 Alternative steering proposals and modifications, intended for Phantom cars.
View original record BY. from DA. c. to BJ. Hs. X7430 DA10/M7.4.27. STEERING - GENERAL. X.8430 X.5430 X.7430 With reference to R3/M22.3.27., we send herewith N.sch.2387 and 2390 which we have sent to R. and RG. N.sch.2387…

Scan146 Experimental development of a returning spring for a steering worm tube.
View original record To BY. from DA. Hs. c. to BJ. x7430 DA12/M7.4.27½ STEERING GENERAL. X.7430 X.5430 X.8430 With reference to the proposed returning spring on the worm tube, we have suggested to R. that he should allow…

Scan147 Steering geometry alterations, involving a modified dumb iron and a shortened pendulum lever.
View original record To DA. from Hs/Rn. c. to BY. BJ. X7430 Hs5/LG11.4.27. EAC-7 - STEERING GEOMETRY. X7430 With reference to DA4/M12.3.27. We can alter the car as indicated on N.sch.2377 without very much difficulty. We…

Scan148 Steering geometry of the Phantom model, comparing the EAC.7 with the 'V' series.
View original record To BY. from Hs/Rn. 47430 Hs/Rm7/LG12.4.27. PHANTOM STEERING GEOMETRY. X7430 X7430 It will be seen from the attached curve of DA's that EAC.7. as we have it, is not appreciably better than 'V' series…

Scan149 Steering performance of the Phantom 7-EX model after 10,000 miles and outlining proposed modifications.
View original record To Hs. from R. c. to BJ. Wor. c. to DA. CWB. c. to BY. PN. +7430 R4/M3. 5. 27. PHANTOM STEERING - 7-EX X. 8430 X. 7430 X. 5420. X. 235 As you know this car has run 10,000 miles in France, therefore…

Scan150 Design of an improved front axle for the 20 HP model, based on the Phantom.
View original record contd :- -2- We are designing an improved front axle for the 20 HP. on the lines of the lighter and better Phantom. We are making an attempt at a design of an axle so as to give a parallel lift to the…

Scan151 Steering worm and nut combinations to control reversibility.
View original record To Hs. from R. c. to BY. DA. +7430 R2/M11.5.27. STEERING. X.8430 X.7430 I want you to be very definite in not coming to any conclusions about steering irreversibility unless the steering worm and nut…

Scan152 Experiments and modifications for the improvement of the Phantom steering system.
View original record To BY. from DA. c. to BJ. hs. X7430 DA1/M12.5.27. PHANTOM STEERING. x. 8430 X. 7430 X. 8430 In connection with the experiments for the general improvement of the steering, we send herewith N.sch. 2414…

Scan153 Outstanding issues with car EAC-7, specifically the steering, rear brake drums, and radiator fan fitting.
View original record To DA. from Hs/Rn. X7430 Hs/Rnl/LG14.5.27. EAC-7. X7220 The outstanding portions of this car which require attention are - the steering and the stiffening of the rear brake drums. With reference to…

Scan154 EAC.7 geometry layout, postponing work in favour of a new scheme and other urgent tasks.
View original record To BY. from DA. c. to Rm. X7430 DA3/M20.5.27. EAC.7. GEOMETRY. X.7430 X.8430 With reference to BY/CGH6/G17.5.27., the last para., the two layouts of the EAC.7. geometry - N.schs. 2375/7 - should not…

Scan155 Trial results for a spring self-centering steering device and requesting new springs with different load ratings.
View original record 42430 To BY. From Hs/Rn. Hs/Rml/LG24.5.27. 40/50 HP. SPRING SELF-CENTERING DEVICE. 78430 We have been trying out this device as arranged. The actual measured loads at the pendulum lever ball end are 3…

Scan156 Experimental self-centering spring and a friction device for the Phantom steering column.
View original record To BY. from DA. c. to BJ. Hs. X7430 DAL/M26.5.27. PHANTOM STEERING - SELF CENTREING SPRING. X. 7430 X. 8430 Herewith we send N.sch.2418 shewing an arrgt. for experimental purposes of a spring e in the…

Scan157 Differences in front axles and their effect on steering performance.
View original record To RHC. from Hs/Rm. Hs/Rm3/LG9.6.27 X7430 FRONT AXLE. X7420 We are very interested in the considerable difference which we find in various axles and their effect on steering. So far, the only marked…

Scan158 How to trial a shortened 'D' steering column on a Phantom by using blocks on the pedals.
View original record +7+30 To Sg. from Hs/Rm. C. to EY. Hs/Rml/LGS.7.27. RE. SHORTENED 'D' COLUMN. 482430 With reference to Sg8/M6.7.27. We have no car upon which we could fit this shortened column. We cannot fit it on…

Scan159 Trial modifications for the Phantom steering system.
View original record To Hs. DA. from R. BY. c. to BJ. BY. E. X7430 R5/M14.7.27. PHANTOM STEERING MODIFICATIONS. X.8430 X.7430 We are sending for trial the following because we all feel certain that we might get some…

Scan160 Requesting details to adapt a column support scheme for cars EAC.7 and EAC-8.
View original record X7430. To BY. from Hs/Rm. Hs/Rml/LG1 8.10.27. We have been asked to carry out some tests on the column support shewn on N.Sch. 2484 on EAC. 7 (12-EX) and EAC-8 (14-EX). Will you please therefore…

Scan161 The experimental fitting of new stays to the E.A.C.7 chassis steering column.
View original record C Hs/Rm X2430 BY/HEB3/M.29.10.27 RECEIVED 29 OCT 1927 E.A.C.7. CHASSIS. STEERING COLUMN - SEC: 7050. It has been decided to try Experimentally a set of stays to Steering Column on the lines of those…

Scan162 Trial and effects of a return spring in the steering column.
View original record To R. From Hs/Rm. c. to BJ. Wor. c. to E. DA. c. to BY. X7430 Hs/Rm6/LG7.11.27. RETURN SPRING IN THE STEERING COLUMN. X7430 We have tried out the return spring in the steering column. This gave 5 lbs.…

Scan163 Experiments to improve steering by altering the pendulum lever length and gear ratio.
View original record To R. from Hs/Rm. c. to BJ. Wor. c. to E. DA. c. to SY. 47430 Hs/Rml/LG24.11.27. EAC.7. (14-EX) STEERING. 47450 Originally we had trouble with the steering on this car. To improve the geometry we…

Scan164 Approval for the use of a 7.5' pendulum lever on car EAC.7 and the resulting steering ratio.
View original record Hs. from DA. X. 7430 DA6/M.12.27. EAC.7. STEERING. With reference to the length of the pendulum lever, and the resulting steering ratio on EAC.7., R. approves of the use of the 7.5" pendulum lever on…

Scan165 Requesting the production and fitting of parts for a standard type pendulum lever on an experimental chassis steering column.
View original record C. Hs/Rm. X7P30 BY/HEB20/M.2.12.27. E.A.C.7. CHASSIS. STEERING COLUMN & BOX SEC:7050. RE FITTING STANDARD TYPE PENDULUM LEVER IN PLACE OF DAMPED SPRING PENDULUM LEVER. Herewith please receive one Blue…

Scan166 Refitting a standard type pendulum lever, listing required parts and correcting a part number.
View original record X7430 c. Hs/Rm. BY/HEB4/M.5.12.27. E.A.C.7. CHASSIS. STEERING COLUMN & BOX SEC:7050. RE FITTING STANDARD TYPE PENDULUM LEVER IN PLACE OF DAMPED SPRING PENDULUM LEVER. Further to our memo'…

Scan167 Loss of steering lock issue caused by fitting a short pendulum lever.
View original record To Da. from Hs/Rm. X7430 Hs/Rml/LG7.12.27. EAC. 7. STEERING. X7450 With reference to DA6/ML.12.27. The immediate disadvantage which we incur when fitting the short pendulumlever is loss of lock…

Scan168 Instructions for a shortened steering nut and cage on the Phantom chassis to increase the angular movement of the rocking shaft.
View original record C. Hs/Rm. X7030 BY/HEB5/M.13.12.27. PHANTOM CHASSIS & E.A.C.S.(12-EX). STEERING COLUMN AND BOX SEC:7050. TO "N" SCHEME 2431. SHORTENED STEERING NUT AND CAGE TO OBTAIN GREATER ANGULAR MOVEMENT OF…

Scan169 Shortened steering nut and cage for the Phantom Chassis to achieve greater angular movement.
View original record c. Hs/Rm. X7430 BY/HEB10/M.29.12.27. PHANTOM CHASSIS. STEERING COLUMN & BOX SEC:7050. SHORTENED STEERING NUT & CAGE TO OBTAIN GREATER ANGULAR MOVEMENT OF ROCKING SHAFT. Further to our memo'…

Scan170 Car performance, covering engine misfires, handling, and potential design improvements.
View original record Hs. E. from R. c. to BJ. Wor. DA. c. to SG. BY. LHS. C. +7430- R1/M31.12.27. EAC.7. X.7770 X.7410 X.7430 Regarding misfires, these have been cured on the magneto by a fresh set of plugs set at .020".…

Scan171 Continued note on the sequence starter, comparing it to the Phantom and 20 HP models.
View original record contd :- -2- The sequence starter seems very good : hope to get it slightly better and somewhat simpler, but it is definitely superior to Phantom and 20 HP. as at present. R.

Scan172 Difficulties with a larger experimental worm gear of .900 pitch.
View original record 7430 Hs. BY DA/HDY. c. to BJ. Wor. R7/M17.1.28. DIFFICULTY WITH LARGER EXPERIMENTAL WORM OF .900 PITCH. X. 8430 X. 7430 I cannot understand why this should be XXXX so, because the angle of the worm…

Scan173 Alternative designs for Super Sports model pedals, covering support, manufacturing, and material considerations.
View original record DA/HDY. HS. BY. From. R. X.7470 R2/M19.3.28. c. to BJ. Wor. SUPER SPORTS - EAC.10 PEDALS - N.SCH.2499. X.7470 I am not sure I am right in asking for entire support from the frame, but I feared any…

Scan174 Adjustments to the steering wheel position for the Continental Phantom 15.EX.
View original record to R. from EV. X7430 EV9/8.2.28. copy to C.Sqr.B. [struck through] CWB. [struck through] Hs. Hs. [handwritten in box] RE STEERING POSITION. CONTINENTAL PHANTOM. 15.EX. The following "Sales" officials…

Scan175 The continued testing of a 9.5 inch pendulum lever to improve vehicle parking and reduce road shocks.
View original record /7430 To R. from Hs/Rn. c. to BJ. Wor. c. to DA. BY. c. to OY. Hm. Y -------- Hs. absent. Hs/Rn2/LG9.2.28 9.5" PENDULUM LEVER. +8430 We have been continuing tests with the 9.5" pendulum lever on a…

Scan176 The 10,000-mile test of the 15-EX car in France, detailing ongoing steering and frame rigidity tests.
View original record 47430 To R. from Hs. c. to BJ. Wor. c. to E. Da. c. to BY. DA/EV. HS2/LG28. 2. 28. 15-EX CAR - 10,000 MILES TEST +892 of 5 IN FRANCE. We attach herewith a report from Hs/Rm. on the condition of the…

Scan177 10,000-mile test report for the 15-EX test car, detailing its performance and condition.
View original record C O P Y. Hs/Rm 26.2.28. Chateauroux, Indre, France. 15-EX - 10,000 MILES TEST CAR. Car generally. The car generally is in splendid condition; the engine is in good tune and very smooth over its whole…

Scan178 Stability and customization of the Phantom Sports steering column.
View original record DA. HS. from R. c. to BJ. Wor. BY. E. 47430 R1/M1.3.28. PHANTOM SPORTS STEERING COLUMN. X.8430 X.7430 X 7380 I noticed that the steering column was not as steady on this car as on my car at Le…

Scan179 Sizing and positioning of the Phantom steering wheel for Standard, Sports & Supersports models.
View original record DA/EV. from R& Hs. c. to BJ. Wor. PN. c. to C. CWB. SG. 47430 R3/M5.3.28. PHANTOM STEERING WHEEL. X.7430 STANDARD, SPORTS & SUPERSPORTS. X.8430 X.3861 Personally I like our standard of 16", but 15"…

Scan180 Letter discussing modifications to steering lubrication, undershields, rattles, and suspension for a car belonging to 'PN'.
View original record 4730 Expl: Dept: Messrs. Rolls-Royce Ltd., Derby. Hs/Rn3/LG5.3.28. 789H0B Mr. Hancock from Hs/Rn. Thank you for your letter of the 3rd. I suggest moderating the pivot lubrication to cut down the…

Scan181 Test report on steering column movement issues and subsequent modifications for the 15-EX chassis.
View original record To R. from Hs/Rm. c.c. to BJ. Wor. c.c. to E. Da. c.c. to BY. FN. c.c. to CWB. +7430 Hs/Rml/LG7.3.28. 15-EX CHASSIS. 489406 X8724 We have been conducting tests on 15-EX due to complaints in the daily…

Scan182 Resolving steering column vibrations and rattles in experimental car models 12-EX and 15-EX.
View original record contd :- -2- scheme by fitting strips of rubber buffer bwteen the scuttle armature and the dash. The result was a 90% cure of column vibrations and rattles. We put the light stays back to relieve the…

Scan183 Adjustments to steering damping and pivot lean to manage high-speed wobbles and improve road handling.
View original record contd :- -3- improve both the scuttle armature and dash rigidity with semi isolation at the same time reduce bonnet rattles. On the last 10,000 miles test on 10-G3 it was the only way we could get…

Scan184 Continued road test report detailing vehicle performance regarding suspension, coachwork, brakes, and engine.
View original record contd :- -4- Light bodies in our experience always seem to accentuate wobbling and joggling troubles (see comparison of 10-EX and 7-LC in France). 15-EX is really very good with the short pendulum…

Scan185 Report page summarising performance observations, focusing on the need for damping in suspension and steering at different speeds.
View original record contd :- -5- It is wonderfully smooth even at the highest revolutions. The valves bounce rather prematurely - 63 m.p.h. on 3rd. - this may have something to do with the loss of tappet clearance of the…

Scan186 Blueprint diagram comparing two designs for a column stay attachment, one effective and one not.
View original record COLUMN STAY ATTACHMENT HEAVY TUBULAR STAY ATTACHED TO DASH CLOSE TO COLUMN SUPPORT VERY EFFECTIVE TUBULAR SECTION L SECTION LIGHT SHEET METAL STAY. NOT MUCH GOOD

Scan187 Blank document page with a Print Room stamp from Derby.
View original record ROLLS-ROYCE, LIMITED PRINT ROOM, 8 MAR 1928 DERBY

Scan188 Blueprint analyzing steering column movement under different support conditions to find a cure for trouble.
View original record CONDITION OF CAR Ⓐ As it left DERBY SUPPORTS 1 & 6 Ⓑ As A. DUST COVER 3 MADE INTO RIGID CLAMP Ⓒ As B. TWO LIGHT STAYS LIKE 4 ADDED (D) As C. COLUMN STAY MOVED FROM 1 TO 2 (E) As A WITH TUBULAR SUPPORT…

Scan189 The reverse side of a photograph marked with a purple print room stamp.
View original record ROLLS-ROYCE LTD. PRINT ROOM 8 MAR 1928 DERBY [Illegible faint pencil markings across the document]

Scan190 To halt production of the Continental Phantom's cast dash due to insufficient rigidity.
View original record To EY. from Hs/an. X7430 Hs/Rn2/LC9.3.28. X7500 X7430 CONTINENTAL PHANTOM - CAST DASH. You will see from the reports of our tests in France that the cast dash is insufficiently rigid to carry the…

Scan191 Modification to the steering nut and cage for the E.A.C.7. chassis to prevent the steering stop from fouling.
View original record C. Hg/Rm. X7430 BY/HEB9/M.9.3.28. E.A.C.7. CHASSIS. STEERING COLUMN & BOX SEC:7050. SIDE STEERING TUBE - SEC:7070. Owing to this chassis being fitted with a 7.500 Pendulum Lever the stop on the…

Scan192 Static tests of the Phantom Sports steering column, focusing on frame deflection and torsional rigidity.
View original record To R. from Hs. c. to BJ. Wor. c. to E. DA. c. to EY. x7430 Hs1/LG9.3.28. PHANTOM SPORTS STEERING COLUMN. x7380 With reference to R1/M1.3.28. In addition to our report on the tests carried out on the…

Scan193 Static stiffness test results comparing a standard 40/50 chassis with a Continental Phantom chassis.
View original record Hs/Tsn/LG9.3.28. CONTINENTAL PHANTOM FRAME - STIFFNESS TESTS ETC: A series of static tests have been done on complete chassis in order to settle two points :- (1) To determine the amount of frame…

Scan194 Experiments on measuring frame twist and torsional stiffness in vehicle chassis.
View original record contd :- -2- the steering wheel to a more serious extent on the sports than on the standard car. This experiment takes no account of the column 'dithering' due to insufficient support, but was merely…

Scan195 Report comparing frame twist percentages between two car models at various front wheel lifts.
View original record contd :- -3- In the following table α is the twist at A: and β that at B. β/α is shewn as a percentage for various front wheel lifts. 17-EX. 50 PH. Wheel lifted. β/α % average. β/α % average. O.S. 2"…

Scan196 Observations and suggestions regarding the rigidity of the cast dashboard for supporting the steering column on the 15-EX model.
View original record To DA. from Hs/RM. +7430 Hs/Rm3/LG10.3.28. CAST DASH RIGIDITY. 47500 for prints After seeing 15-EX we make the following observations. We think that semi-isolation will look after all the dash (if the…

Scan197 Issues with the dash and steering column, focusing on how the dash flexes.
View original record contd :- -2- round the dash, the advantage being that this would stiffen it where it is coupled to the radiator stay, but really the column seems at present to be the source of the trouble; if we…

Scan198 Modifications to the steering system for the 12-EX model, including changes to pivots, springs, and steering ratio.
View original record +7430 To Sy. from Hs/Rm. Hs/Rml/LG 6.3.28. STEERING. +7430 R. has given us such glowing accounts of the steering on his car that we wish to reproduce it as far as possible on 12-EX. Will you therefore…

Scan199 The alteration of the overall steering ratio to 15/1 for Phantom Chassis 12-EX.
View original record c. Hs/Rm. X7430 BY/HEB15/M.22.3.28. PHANTOM CHASSIS 12-EX. STEERING COLUMN & BOX SEC:7050. SIDE STEERING TUBE - SEC:7070. ALTERING OVERALL STEERING RATIO TO 15/1. Herewith please receive one Blue…

Scan200 Bench tests comparing the efficiency of different lead steering worm and nut designs.
View original record To R. from Hs/Rn. c. to BJ. Wor. c. to RG. E. c. to BY. OY. c. to DA. X7430 Hs/Eml/LG22.3.28. STEERING. X. 8430 X. 7430 X. 8420 We have been running one of the latest .900 worms with the longer…

Scan201 Steering system design, focusing on worm and nut type steering, road shock immunity, and friction improvements.
View original record contd :- -2- The conclusions that we made in Hs/Rm2/LG19.7.27 are therefore confirmed by our recent experiments, and we do believe that with the worm and nut type of steering it is very difficult to…

Scan202 Analysis of friction in a spring-loaded cross steering tube scheme, including a comparison table of different axle conditions.
View original record contd :- -2- spring. This scheme in conjunction with the spring loaded cross steering tube allows us to get the additional friction which we can make use of owing to our low overall steering ratio of…

Scan203 Comparison table of steering specifications for different Phantom series.
View original record COMPARISON OF STEERING PHANTOM SERIES | 'V' | CONVERS | 'B' 2 | 'F' 2 | 14 EX E.A.C. 7 | SPORTS CAR WITH SHORT PEND LEVER F'2 CONV. | EXP LEAD | 1.125 | .940 | .720 | .720 | .720 | .720 | .900 PITCH…

Scan204 Stamped document from the Derby print room.
View original record PRINT ROOM 23 MAR 1928 DERBY.

Scan205 Steering improvements for the 20 HP and 45 HP models.
View original record DA. HS. BY. from R. c. to BJ. Wor. E. RL/M25.3.28. +7430 X.5430 X.7430 20 HP. & 45 HP. STEERING. PN. says that the sports car was very good, but still imperfect, because there is too much reaction on…

Scan206 Layout of the 'SS' side steering tube, referencing drawing N.sch.2567.
View original record BY. from DA. c. to BJ. Hs. X7450 DA4/M26.3.28. 'SS' SIDE STEERING TUBE. X.7450 X.7410 X.7380 Herewith we send N.sch.2567 shewing the layout of the steering, side steering tube, front end of frame etc.…

Scan207 Use of a friction damper on the 12-EX scuttle to solve issues of steering column waggle and customer complaints.
View original record Hs. from DA/EV. c. to BJ. R. +7430 DA/EV1/M27.3.28. 12-EX SCUTTLE. X.7500 X.7430 X.4613 We are not convinced from what little we know about what happened on 15-EX that the friction damper between the…

Scan208 Semi-isolation scheme for a steering column using rubber to prevent squeaks and improve rigidity.
View original record To DA. from Hs/Rm. c. to BY. X7430 Hs/Rm2/LG27.3.28. SEMI-ISOLATION. XW413 We send you a scheme for semi isolation which we have been using with success. We find that it is necessary to use rubber…

Scan209 Blueprint showing a semi-isolation bolt assembly using rubber components.
View original record SEMI ISOLATION 117 M.C. BOLT CENTRES AS ON F.4735. STRIP OF RUBBER RUNNING RIGHT ROUND TOP OF THE DASH IF AVAILABLE. OTHERWISE CONTINUOUS PIECES CUT TO FIT OFF CAR BUFFERS. THESE ARE THE REQUIRED…

Scan210 The reverse side of a document showing a date stamp from the Print Room in Derby.
View original record PRINT ROOM 27 MAR 1928 DERBY.

Scan211 Technical review of steering system design, focusing on worm gears, helix angles, and damping friction for Phantom models.
View original record DA. Hs. BY. c. to BJ. Wor. RG. OY. c. to E. CWB. PN. Fl. (Handwritten: X7430) R1/M28.3.28. STEERING - PHANTOM ETC. GENERAL REVIEW X. 8430 AND EXP: .900 LARGE WORM. X. 7430 I am not convinced that…

Scan212 Improvements to steering and axle design, including friction, damping, and weight reduction.
View original record contd :- -2- greater than the friction in motion. This would be equivalent to fitting a hartford each side the longitudinal flexibility. If it were found (as one believes) to be most advantageous on…

Scan213 Relative positions and design differences of side lever mechanisms on the Phantom chassis.
View original record X7430 Dr. c.Hs BYT/G.30.3.28. RECEIVED MAR 30 1928 We send you herewith print of LF.1073 showing relative positions of the side lever mechanisms on present production Phantom chassis, and the side…

Scan214 Unsatisfactory method for staying the steering column to the dashboard on the EAC.14 model.
View original record - 2 - BY7/G.30.3.28. There is one other matter in connection with the dash whilst dealing with this subject which demands consideration. On EAC.14 dashboard the Experimental Department found during…

Scan215 Potential steering modifications for J, F and M series vehicles.
View original record To BY. from Hs/Rn. Hs/Rm1/LG2. 4. 28. With reference to Rl/M35.3.28. para.4. We should like to know whether there is any objection due to fouls etc. to us fitting the improved geometry to J. and F.…

Scan216 Alternative proposals for the 'SS' steering box, comparing small versus large worm designs.
View original record X. 7430 BY. from DA. c. to BJ. Hs. DA2/M3. 4. 28. 'SS' STEERING BOX. Herewith we send N.schs. 2570/74, shewing alter-native proposals for the steering column box. We have shewn the small worm and box…

Scan217 Requesting to expedite modifications for a steering column deflection measuring device.
View original record To RHC. from Hs/Rn. X7430 Hs/Rm3/LG4.4.28. Will you please urge the following small bits which are a modification for the existing device for measuring steering column deflection. Hs/Rn.

Scan218 Review of flexibility issues and proposed solutions for dashboards, scuttles, and steering columns on 20 HP & 40 HP models.
View original record DA. BY. Hs. from R. X7430 R3/M7.4.28. c. to BJ. Wor. C. E. SG. 20 HP. & 40 HP. STEERING COLUMNS, X.5500 X.7260 SCUTTLES AND DASHBOARDS REVIEWED. X.7500 X.7250 X.7430 X.5430 A dashboard should be able…

Scan219 Potential purchase of a 1927 straight-eight Bugatti to study its road-holding characteristics.
View original record Hs. E. from R. Da. c. to BJ. C. Sg. +7430 R1/M2.4.28. RE. STEERING. X. 8430 X. 7430 X. 2266 The carw which (after the Hispano) might be interesting from a road holding point of view, and for other…

Scan220 Steering leverage, worm gear specifications, and mounting options.
View original record X. 7430 DA. BY. from R. c. to BJ. Hs. R4/M16.4.28. SS. STEERING N.SCH.2570 Perhaps we ought to keep between 15 and 16 leverage - turns from full lock to full lock 2.6, and the larger worm, about .9…

Scan221 Steering system performance, flexibility, and comparisons with competitor vehicles.
View original record X7430 To DA. from R. R2/M16.4.28. HS. E. c. to BJ. Wor. BY. PN. C. CWB. SG. STEERING. X. 7430 X. 5430 X. 8430 X. 963 It is fairly certain that with a 15/1 steering we are still faster than the average…

Scan222 Bump rig experiments conducted on a cast dash to measure steering column deflection and movement.
View original record To R. from Hs/Rm. C. to [REDACTED] C. to [REDACTED] X7430 Hs/RmL/LG16.4.28. CAST DASH. X8500 / X7570 X 8772 We have been conducting experiments on the bump rig with the cast dash with stiffener and…

Scan223 Steering column deflection, proposing modifications to the dash and suspension based on testing experimental cars.
View original record contd :- -2- but this is obviously a condition exaggerated by the bumper as it did not worry us at all on 15-EX. Therefore, whilst we are interested in the cause of the deflection, it is not a serious…

Scan224 Test results for steering column movement measured at the thrust race on a bumping rig.
View original record COLUMN MOVEMENT TESTS. BUMPING RIG - MOVEMENT MEASURED AT COLUMN THRUST RACE. 2" CAMS. 108 R.P.M. BUMPING FRONT WHEELS. CONDITION OF CHASSIS. COLUMN MOVEMENT. Bumper running. Static test horizontal.…

Scan225 Blueprint for an experimental stiffener for a cast dashboard undergoing bumping tests.
View original record EXP. STIFFNER FOR CAST DASH. BUMPING TESTS. DIAGRAMATIC VIEW OF STEERING COLUMN TRIANGULATED SUPPORT, ONLY. THREE BOLTS SPACED AS INDICATED AT A. 10 GAUGE SHEET M.S. 22.250 3/4" OUTSIDE DIA. TUBE. OR…

Scan226 With a diagram discussing experiments on steering pivot geometry for directional stability.
View original record Hs from Rm. STEERING R is anxious that we should complete the experiments we have in hand with regard to the steering pivots. He is interested in the pivots giving "s" more out of centre point and…

Scan227 The status and completion of pivots.
View original record R.H.C. has such pivots in hand which I believe are almost completed, it would be worth while finishing them off.

Scan228 Proposals for stiffening the steering column on the sports chassis.
View original record BY. from DA. c. to BJ. Hs. X. 7430 DA4/M18.4.28. EAC.14. SUPPORT OF STEERING COLUMN. Herewith we send N.schs. 2583/4/6 shewing proposals for stiffening the steering column on the sports chassis in…

Scan229 Proposal to improve the 20 HP model's appearance by cancelling the upright steering.
View original record DA/EV. E. HS. Y7430 R3/M18.4.28. c. to BJ. Wor. PN. BY. c. to C. SG. PHANTOMS. X. 7430 X. 8430 I like DA/EV's idea of treating the above like I had arranged for the 20 HP. to improve its appearance -…

Scan230 Outlining remarks and suggestions for the Phantom Scuttle Isolation design.
View original record 47430 Hs. from DA/EV. GEATRIX [strikethrough] c. to LHS. SG. BY. DA/EV2/M20.4.28. X.4613 X.7500 X.7430 RE. PHANTOM SCUTTLE ISOLATION. We note that a std. sheet for semi-isolation for Phantom is in…

Scan231 Possibility of dismounting the 'SS' steering column without removing the engine.
View original record R. from DA. c. to BJ. Hs. BY. X. 7430 DA2/M21.4.28. 'SS' STEERING. N.sch.2570 With reference to R4/M16.4.28., we had considered that the steering column could be dismounted without removing the…

Scan232 Improvements to the Phantom steering system, with comparisons to other vehicles and customer feedback.
View original record 47430 To R. from Hs. c. to BJ. Wor. c. to E. DA. c. to BY. OY. Hs3/LG23. 4. 28. PHANTOM STEERING. X.8430 X.4214 X.7430 X.5430 The steering ratio of the 6 1/2 litre Bentley is 16/1. It is just over 3…

Scan233 Steering characteristics, skid correction, and comparisons between different steering systems on various car models.
View original record contd :- -2- some reason skids across the road at 45°, to correct that skid it means the steering should be turned well over on the lock in the opposite direction. With a low geared steering it is not…

Scan234 Improvements to the Phantom steering system, comparing it to Hispano and suggesting hydraulic damping.
View original record Hs. from R. c. to BJ. BY. DA. 47430 R11/M25.4.28. PHANTOM STEERING. X.7430 X.4214 X.8430 X.7420 With reference to Hs3/LG23.4.28., I quite agree that enormous improvement has been made in the steering…

Scan235 Various steering configurations and leverage ratios for Phantom models.
View original record Hs. DA. from R. c. to BJ. BY. PN. E. C. Sg. PHANTOM STEERING. X.7430 X.8430 For the present production the best we can do is - .720 worm and box. Rocking lever 1.75". Pendulum lever 9½" Steering lever…

Scan236 Necessity of increasing the pendulum lever length on the Phantom steering system to 10 inches.
View original record Hs. from DA. BY. X7430 DA3/M1.5.28. PHANTOM STEERING. X.7430 & X.8430 X.7420 With reference to R1/M28.4.28., we know the original Phantoms had 9.5" pendulum levers, but the longer lever on the front…

Scan237 Policy memo regarding the implementation of a 10-inch steering lever instead of a 9.5-inch lever, pending clearance checks.
View original record [Handwritten]: X7430 [Handwritten]: X7430 (struck through) X7450 To BY. from Rm. Hs/Rm3/LGl.5. 28. With reference to DA4/M28.4.28 - attached. If the 10" lever mentioned in this note gives a reasonable…

Scan238 Recommendation regarding the manufacturing specifications for lead steering nuts.
View original record To BY. from Hs/Rm. +7430 x5430 Hs/Rm2/LG1.5.38. In view of R's recent move on steerings, we recommend that no more .940 lead steering nuts are manufactured as these will be replaced by .812 lead. Also…

Scan239 Reduced steering ratio for the Phantom model.
View original record BY. from Hs/Rm. X7430 Hs/Rm5/LG2.5.28. REDUCED STEERING RATIO FOR PHANTOM. X7430 X7450 We have seen the layout of the 10" pendulum lever on the present standard Phantom with the ball on the inside and…

Scan240 From BJ to Hs enquiring about the testing status of a suggested steering type for the Phantom.
View original record X7430 To Hs. from BJ. Phantom Steering. BJ4/E2.5.28 With reference to R's memo. Rl/M28.4.28 and his suggestion in regard to the type of steering which should be used on the present production, how far…

Scan241 Standardised modification to the Phantom steering by shortening the pendulum lever.
View original record To B.J. from Hs. X7430 Hsl/LG3.5.28. PHANTOM STEERING. Replying to BJ4/K2.5.28. The steering for present production which is recommended by R. has already been standardised. The only alteration on…

Scan242 Revising the steering column and magneto controls to eliminate 'click-on' type ball joints on the Phantom Chassis.
View original record To H.E. To RHC. To BY/SS. 77430 x7240 Re Phantom Chassis - Revised Steering column and Magneto Controls to eliminate "Click-on" type Ball Joints. Further to our memo BY/CS5/DB.5.5.27, in which we…

Scan243 Modifications to the side steering tube for fitting a shortened pendulum lever on the Phantom 'F2' series chassis.
View original record X7430 c. Hs/Fm. BY/HEB6/M.4.5.28. PHANTOM CHASSIS "F2" SERIES. STEERING COLUMN & BOX SEC:7050. SIDE STEERING TUBE - SEC:7070. FITTING SHORTENED PENDULUM LEVER (9.500) IN CONJUNCTION WITH AXLE CONTROL…

Scan244 Fitting a 10,000' pendulum lever with a balanced side steering tube to the Phantom 'P-2-B' series chassis.
View original record c. Hs/Rm. X7430 BY/HSB12/M.4.5.28. PHANTOM CHASSIS "P-2-B" SERIES. STEERING COLUMN & BOX SEC:7050. SIDE STEERING TUBE - SEC:7070. RE FITTING 10,000" PENDULUM LEVER WITH BALANCED SIDE STEERING TUBE.…

Scan245 Changes to steering ratios by altering the worm and nut lead instead of the pendulum lever.
View original record To BY. from Hs/Rm. +7430 Hs/Rml/LG7.5.28. STEERING. +8430 With reference to R's latest note on steering. You will see that he wishes the cars fitted with old type front axles to have their steering…

Scan246 Recommending the standardisation of Phantom controls after successful testing on experimental cars.
View original record To EY. from Hs/AJL. x7230 Hs/AJL1/LG7.5.28. PHANTOM CONTROLS. x7240 LeC.2198, 2200/1. With reference to EY/C95/DB4.5.28. The above type of controls eliminating the 'click on' joints have been fitted…

Scan247 Refitting of a 10.000' Pendulum Lever with a balanced side steering tube for the Phantom Chassis F.3.B Series.
View original record 47430 c. Hs/lbs. BY/HEB6/M.7.5.28. PHANTOM CHASSIS "F.3-B" SERIES. STEERING COLUMN AND BOX SEC:7050. SIDE STEERING TUBE SEC:7070. RE FITTING 10.000" PENDULUM LEVER WITH BALANCED SIDE STEERING TUBE. As…

Scan248 The impact on driver's vision of installing a higher radiator on a Phantom.
View original record To R. from Hs. c. to BJ. Wor. c. to E. DA. c. to BY. +7430 Hs2/LG8.5.28. HIGHER RADIATOR FOR PHANTOM. +7250 If this is used in connection with the lowest raked steering E. position, it does definitely…

Scan249 Cures for steering complaints by altering ratios, worms, and springs.
View original record To R. from Hs/Rn. c. to BJ. WOr. c. to E. DA. c. to BY. OY. 47430. Hs/Rm3/LGS. 5. 28. 40/50 STEERING. X. 8430 X. 7430 With reference to the curing of complaints by reducing the overall steering ratio.…

Scan250 Comparison table of steering conversions for 40/50 models to address complaints.
View original record 40/50 CONVERSIONS FOR COMPLAINTS AIMING AT OVER-ALL RATIO OF 15/1. TABLE DATA: Column Headers: 1) SERIES: V, ORIGINAL CONVERSION, CONVERSION FOR STEERING COLS. 1 AND 2., 'B' 2, CONVERSION FOR 'B' 2…

Scan251 Trial of a new .825 lead steering worm and a 9 3/4' pendulum lever for 40/50 steerings.
View original record +7430 To EY. from Hs/Rn. Hs/Rml/LGS.5.28. 40/50 STEERINGS. X7430 X7450 You will have seen that R. is pushing for an .825 lead steering worm to take the place of the .940 lead at present being used. We…

Scan252 Trials of a new .825 lead steering worm and a 9 3/4' pendulum lever for the 40/50 steering system.
View original record To EY. From Hs/Rm. X7450 Hs/Rnl/LG.5.28. 40/50 STEERINGS. X7430 You will have seen that R. is pushing for an .825 lead steering worm to take the place of the .940 lead at present being used. We…

Scan253 The production timeline for .825 lead steering nuts, proposing the .940 conversion as a satisfactory alternative for the time being.
View original record X7430 BY. from Hs/Rn. hs/Rml/LG9.5.28. .825 LEAD STEERING NUTS. X7430 Although R. has expressed a wish that the 825 steering should be brought in as soon as possible, it will be some little time…

Scan254 New design for a damped pendulum lever using laminated springs.
View original record Hs. from R. c. to BJ. c. to BY. X. 7430 R1/M9.5.28. DAMPED PENDULUM LEVER. We have today arrived at a suitable design for a damped pendulum lever having laminated springs that we think will give good…

Scan255 Standardisation report for a 9.5' pendulum lever with otherwise standard steering.
View original record RR 785 REVISED (10/1) (D.C. 777-29-2-28) M F C. LTD +7+30 COMPLETED 10.5.28 STANDARDISATION of CHASSIS PARTS. Date 24.3.28 X No. 8430 Drawing No. Part List Description of Parts. 9.5" PENDULUM LEVER…

Scan256 Test date and costs for fitting a new part to a specific chassis.
View original record (1) The number of the chassis on which the new part will be fitted. F.2.B. (2) Date when the chassis will be handed to test. 9.6.28 (3) Cost of scrapped material, if any. Nil. (4) Cost of jigs and…

Scan257 Side steering lever length and spring specifications for the 40/50 steering system.
View original record Hs. from DA. X7430 DA4/M11.5.28. 40/50 STEERING. X.7430 X.7450 With reference to Hs/Rm3/LG, (handwritten note: X.5.28) we suggest that the length of the side steering lever shewn in columns 6 and 7…

Scan258 Specification table for Phantom side steering tube ends.
View original record PHANTOM SIDE STEERING TUBE ENDS. ARRGT. OR LOP. NO. | PIECE NO: OF SPRING. | RATING AND MAXIMUM STRESS. | TOTAL BALL END MOVEMENT. | CHASSIS TO WHICH FITTED. | REPLACED BY. ---|---|---|---|---|---…

Scan259 Technical memorandum regarding changes and performance of the 40/50 HP steering system.
View original record DA. from Hs/Rn. 47430 Hs/RnL/LG14;5.28. 40/50 HP. STEERING. x7450 x8430 With reference to DA4/M11.5.28. Columns 6 and 7 are correct for F2. series as on this series axle control was brought in. A 9.5"…

Scan260 Improving steering control and preventing high-speed wobbles by adjusting ball pin travel.
View original record contd :- -2- for the same springs in an emergency than .600 travel. We have proved by tests that when the driver locks over as hard as he can in a crisis, the whole available .600 movement in…

Scan261 Trial of 'D' type steering and suggestions for a proposed 'E' type steering for the Phantom G.2.B. series.
View original record S/W. 47430 Copy to "Hs". Sg2/W/16.5.28. Re: Phantom Steerings. We yesterday tried the steering position on 14.EX. which from information supplied from W. we found to be approximately the same to the…

Scan262 Specifications for rebuilding chassis 15-EX, including frame, radiator, and steering type.
View original record Hs. from DA/EV. c. to - BY. +7430 DA/EV1/M16.5.28. 15-EX. X.7770 X.7430 X.7380 X.7250 You told us that 15-EX will be rebuilt as an ordinary chassis, not a sports chassis, and that it will have a long…

Scan263 The new design of a damped pendulum lever with leaf springs for 'SS' steering.
View original record BY. from DA. c. to BJ. Hs. X7430 DA4/M/7.5.28. "SS" STEERING - PENDULUM LEVER. X. 7430 X. 7420 We send herewith N.sch.2600 shewing the new design of damped pendulum lever with leaf springs; The leaf…

Scan264 Sending schedule N.sch. 2605, detailing the design of a side steering tube for use with a damped pendulum lever.
View original record BY. from DA. C, to BJ. Hs. X7430 DA5/M1 7.5.28. "SS" STEERING. X.7430 X.7450 X.7425 Herewith we send N.sch. 2605., shewing the rear end of the side steering tube for use with the damped pendulum…

Scan265 Causes of 'joggling' at the steering wheel, attributing it to gyrostatic reaction and road shocks, and suggesting damping solutions.
View original record Hs. from R. c. to BJ. Wor. c. to BY. PN. c. to CWB. 47430- R7/M17.5.28. PHANTOM STEERING. X. 8430 X. 7430 My own ideas have been for some time that the 'joggling' at the steering wheel is largely due…

Scan266 Improvements and progress on the Phantom chassis, including damping, steering, and engine components.
View original record HS. BY, from R. c. to BJ. Wor. X7430 R4/M17.5.28. SS. PHANTOM. X.7430 X.7770 X.7410 We are sending you within the next day or two a spring damped pendulum lever, and in this new specimen we have been…

Scan267 The blueprint for a 40/50 HP side steering tube fitted on the 14-EX model.
View original record To DA. from Hs/Rn. X7430 Hs/Rn3/LG19.5.28. 40/50 HP. SIDE STEERING TUBE. X7450 With reference to your query re. the side steering tube fitted on 14-EX. Herewith blueprint of same. Hs/Rn.

Scan268 Responding to a query about the 40/50 HP side steering tube fitted on 14-EX, confirming a blueprint is being sent.
View original record To DA. from Hs/Rn. X7450 Hs/Rm3/LG19.5.28. 40/50 HP. SIDE STEERING TUBE. X7450 / X7430 With reference to your query re. the side steering tube fitted on 14-EX. Herewith blueprint of same. Hs/Rn.

Scan269 The compromised steering design for the 14-EX car, defending it and listing other new features.
View original record X7430 To BJ. from Hs. Hs3/LG22. 5. 28. 14-EX CAR. X7430 X7770 Replying to BJ2/E22.5.28. The remark we wish to make as regards the steering is that we do not know how to make a steering which will be…

Scan270 Instructions for fitting a .720 lead steering column in place of the existing .900 lead steering column on a 12-EX Chassis.
View original record c. Hg/Rm. X7430 BY/HEB11/M.24.5.28. 4.40 am 25/5/28 12-EX. CHASSIS. STEERING COLUMN & BOX SEC:7050. FITTING .720 LEAD STEERING IN PLACE OF EXISTING .900 LEAD. In accordance with instructions in…

Scan271 Criticisms and comparisons of various steering systems, including issues with high-speed wobble.
View original record To R. from Hs/Rm. c. to BJ. Wor. c. to E. DA. c. to BY. PN. c. to CWB. x7430 Hs/RmL/LG25.5.28. STEERINGS. X5430 x8430 We are still criticised for our steerings. We admit that they are not perfect but…

Scan272 Comparison of steering performance and design factors between the 20 HP and 40/50 models.
View original record contd :- -2- A customer who has always quoted the 20 HP. Sunbeam steering against us, admitted the other day that the latest 20 HP. RR. steering was now much superior to that of the Sunbeam. If any…

Scan273 Substitution of parts for a .720 lead steering assembly on a 12-EX chassis.
View original record c. Hs/Rm. 47+30 BY/HLDB/M.31.5.28. 12-EX. CHASSIS. STEERING COLUMN & BOX SEC:7050. FITTING .720 LEAD STEERING IN PLACE OF EXISTING .900 LEAD. With reference to our memo' BY/HEB11/M24.5.28, kindly note…

Scan274 Proposed 'E' type steering modifications for the Phantom G.2.B. series.
View original record To BY. from DA/EV. c. to BJ. Sg. 47430 Ev1/14.6.28. PHANTOM. X.7830 X.7430 X.7420 'E' TYPE STEERING FOR G.2.B. SERIES. We send herewith N.sch.2632 shewing the proposed E. type steering for G.2.B.…

Scan275 Requesting confirmation on the support of a steering column with a standard cast dash.
View original record Hs. from DA. X7430 DAL/M15.6.28. RE. SUPPORT OF STEERING COLUMN WITH CAST DASH. X.7430 X.7500 Since your Hs/Rml/LG30.4.28., we have not heard any more about the support of the column with the cast…

Scan276 Solutions to a steering problem, including spring and hydraulic damping.
View original record Hs. from T. c. to BJ. BY. 47430 R1/M15.6.28. X.7430 X.7830 X.8430 X.235 RE. PROBLEM OF STEERING. We have now sent you a spring damped pendulum lever with laminated springs. This is arranged so that in…

Scan277 Support of the steering column with a cast dash on cars 12-EX and 14-EX.
View original record x7430 To DA. from Hs/Rm. Hs/Rm5/LG1 8.6.28. RE. SUPPORT OF STEERING COLUMN WITH CAST DASH. X7430 X7500 [crossed out] With reference to DAL/M15.6.28. We agree that the cast dash is quite satisfactory…

Scan278 Trial and modifications required for 'E' steering on a G.2.B. series car.
View original record KN30 S/W. (Copy to Hs). Sg15/M/19.6.28. Re: 'E' Steering for G.2.B. Series. Referring to Evl/14.6.28. - we have this afternoon received with your BY/Mtn17/K18.6.28. print of N.Sch. 2632. We consider…

Scan279 The support of the steering column with a cast dash.
View original record Hs. from DA. X7430 DA1/M21.6.28. SUPPORT OF STEERING COLUMN WITH CAST DASH. X. 7430 X. 7500 X. 4613 We thank you for your Hs/Rm5/LG18.6.28. It would appear from this that the use of 2 bolts only at…

Scan280 Standardisation sheet memo regarding the 10' Pendulum Lever for the Phantom, pending a 10,000-mile test report.
View original record 47430. To Hs. from BJ. Standardisation Sheet. I return herewith Sheet No.7430, Phantom, 10" Pendulum Lever, on which I have made the following remark: "Agreed to be put in hand but not issued from W.…

Scan281 Agreeing to fit an 'E' type steering on vehicle 12-EX and alter the front seat.
View original record To BY. from Hs/Rn. X7430 Hs/Rnl/LG21.6.28. X7770 With reference to the 'E' type steering. We agree that we will fit this on 12-EX. We will alter the front seat as necessary. In order to avoid any…

Scan282 Requesting instructions be issued for fitting the new 'E' steering to a 12-EX car.
View original record X7430 To Sg. from Hs. c. to BY. c. to DA/EV. Hs1/LG21.6.28. X7430 X7770 'E' STEERING. G.2.B. SERIES. Replying to Sg15/M19.6.38. We have asked BY. to issue the necessary instructions so that the new…

Scan283 Proposed adjustment and spring load for the front axle control ball joint.
View original record X7240 BY. from DA. c. to BJ. Hs. DA2/M21.6.28. FRONT AXLE CONTROL - BALL JOINT X.7420 ON CONN: ROD. X.7030 X.2740 It will be remembered that Exp: Dept: have asked for an adjustment on the ball end to…

Scan284 Agreement to modify steering wheel clearance and dimension for the E. Steering G.2.B. Series.
View original record BY. from DA. c. to Hs. SG. X7430 DA2/M23.6.28. E. STEERING - G.2.B. SERIES. X.7430 X.7500 With reference to Hs1/LG21.6.28., DA/EV. discussed this matter with the Sales conference, and it was agreed…

Scan285 Standardisation report for a 10 inch Pendulum Lever chassis part.
View original record RR 755 REVISED (10H) (D.C. 777-29-2-28) MT C.LTD X7430- COMPLETED 23.6.28 STANDARDISATION of CHASSIS PARTS. Description of Parts: 10" PENDULUM LEVER. Origin: To reduce road shocks and make car parking…

Scan286 Chassis number, test date, and costs for fitting a new part.
View original record STANDARDISATION OF CHASSIS PARTS (1) The number of the chassis on which the new part will be fitted. F.2.B. (2) Date when chassis will be handed to test. 9.6.28. (3) Cost of scrapped material, if any.…

Scan287 Pedal and steering column fitting issues for the Phantom Chassis 'E'.
View original record X743/0- C. Hs. G.W.S.(g). BY/Cghs/K. 27. 6. 28. PHANTOM CHASSIS "E" STEERING. -------------------------------- With reference to N.sch: 2632 showing the above on which it is specified that we are to…

Scan288 Proposal and design challenges for a larger diameter steering wheel.
View original record X7430 To C. from Hs/Rn. c. to DA. LARGER STEERING WHEEL. X7430 X5430 You will recollect in the recent discussion we had at Conduit Street, we were told by Ev. that 14-EX (the car which was with Mr.…

Scan289 Tests and improvements to overcome high speed wobbles in 40/50 HP steering.
View original record To R. from Hs/Rm. c. to BJ. Wor. c. to E. DA. c. to BY. OY. c. to FN. CWE. 47430 Hs/Rm2/LG5.7.28. 40/50 HP. STEERING. 47380 X 457 Two factors have always limited the selectivity of the RR. 40/50…

Scan290 Experimental vehicle testing, comparing frame stiffness, suspension damping, and ride comfort.
View original record contd :- -2- The frame stiffness is worth having, because if we revert to single point mounting, which we can do in a few minutes on our experimental arrangement, we get more road shocks. Alteration…

Scan291 Tests concerning wheel balance, frame torsion, and steering issues like 'nibbling' and 'wandering'.
View original record contd :- -3- From these further tests we still consider that having the tyres 1.75" out of centre point is a definite advantage; as you suggested we put the wheels out of balance and the consequent…

Scan292 Graph showing frame twisting test results comparing standard, x-membered, and 4-point mounting configurations.
View original record FOR THESE TESTS THE FRAME WAS SUPPORTED AT THE REAR ON JACKS THEREBY ELIMINATING THE FLEXIBILITY OF THE REAR SPRINGS. LOAD STANDARD FRAME PLUS X MEMBER UNDER RADIATOR PLUS 4 POINT MOUNTING TORQUE LBS.…

Scan293 Blank document with a red ink stamp in the bottom right corner.
View original record S-ROYCE, LIMITED PRINT ROOM, 5 JUL 1928 DERBY.

Scan294 Blueprint of an X-shaped cross-member with engine mounting points for the 10-EX model.
View original record ENGINE MOUNTING IS PIVOTTED HERE 4" DEEP TO OBTAIN 2-POINT FRONT MOUNTING, DOWELS ARE INSERTED HERE. FISH PLATES X-SHAPED CROSS-MEMBER FITTED TO 10-EX

Scan295 Faded document with a date stamp and handwritten annotations.
View original record DEPT + REC'D 5 JUL 1928 DERBY.

Scan296 Critiques and comparisons of a vehicle's engine, seating, and performance.
View original record BJ. from R. c. to Wor. Hs. +7430 R1/M9.7.28. 14-EX. X.7770 X.7410 X.7830 X.7430 I quite agree with your criticisms that : (1) The engine has a slight roar. (2) The rear seat is now bad. As used in the…

Scan297 Modifications and testing of shock absorbers and springs.
View original record x7450 To CWB. from Hs/Rn. Hs/RmL/LG9.7.28. X235 X8950 With reference to CWB5/JL7.7.28. We will try and let you have the necessary shock absorbers for 29-CL within the next 14 days. With reference to…

Scan298 Steering column dimensions for the Phantom 'E' type chassis.
View original record X7430 DA. c. Hs. c. Sg. BY/Cgh8/G.13.7.28. PHANTOM CHASSIS 'E' STEERING. ---------------------------- With further reference to N. Sch. 2632 showing 'E' type steering column, we find that if we use…

Scan299 Directive to halt work on 'B' steering for the Phantom G2B series and a note to reduce car height.
View original record Hs. BY. from R. c. to BJ. Wor. SG. +7430 R2/M13.7.28. PHANTOM G2B. SERIES. X.7430 X.7770 Let there be no mistake; work on 'B' steering for series G2B. should be stopped, and notstarted again unless…

Scan300 Confusion surrounding the cancellation of 'B' type steering for the Phantom G.2B series.
View original record R. C. BJ. C. Wor. C. Hs. C. DA/EV. C. G. C. Sg. V7430 BY6/G.16.7.28. PHANTOM G.2B SERIES - STEERING. Referring to DA/EV1/M12.7.28. and R2/M13.7.28. we do not understand why DA/EV. has raised this…

Scan301 Awaiting instructions for modifications to car 12-EX in preparation for a 10,000 miles test.
View original record To BY. from Hs/Rm. Y7430 Hs/Rm/LG18.7.28. x7500 We are awaiting instructions for 'E' steering column, higher and wider dash, and higher radiator on 12-EX. You will recollect that we have promised to…

Scan302 Modifications and issues with the Phantom Chassis 'E' steering.
View original record S/W. (strikethrough) (Copy to Hs). " " De). " " Sw). 47430 Sg11/W/19.7.28. Re: Phantom Chassis 'E' Steering. Referring to BY/Cgh8/G13.7.28. we do not consider that the .300" will make any material…

Scan303 The timeline for fitting a higher radiator and dashboard to the 12-EX car.
View original record To Sg. from Hs. c. to BY. c. to DA/EV. Y7430 Hs1/L620.7.28. PHANTOM. 'I' STEERING. Y7250 Y7430 Replying to Sg11/M19.7.28. We anticipate it will be 4 or 5 weeks before we have 12-EX car fitted with the…

Scan304 Modifications to the 'E' type steering column and pedals for the Phantom chassis.
View original record W/S (Sg). c. Hs. c. Da. Y7430 BY/Cgh/G.21.7.28. re PHANTOM CHASSIS 'E' STEERING. With reference to Sg11/M19.7.28. we have arranged for the length of 'E' type column to be the same as 'D' type, which…

Scan305 On modifications for the 16-EX sports car with a Barker body, detailing work on the steering column and ignition timing.
View original record To Sg. from Hs/Rm. 47430 Hs/Rm2/LG26.7.28. 16-EX - Sports with Barker body. X7770 Replying to Sg13/M25.7.28. We must fit something to hold the column up on this car - semi-isolation or stays. Also…

Scan306 Improving the Phantom steering by increasing the wheel off-set to reduce high-speed wobbles.
View original record To R. from Hs. c. to BJ. Wor. c. to E. DA. c. to BY. +7430 HS3/LG13. 3.28. PHANTOM STEERING. 47810 We attach a note from OY. which confirms our results that with 1/2" increased off-set of the wheels…

Scan307 Preliminary test results of front wheels with increased off-set to eliminate tramping and snatchy steering.
View original record C O P Y. July 23rd, 1928. Co. to Mr. Ainsworth. Mr. Soutter. Mr. Darling. Mr. Nadin. Mr. Bagnall. Mr. Poole. Mr. Hives. England. To Mr. Beaver. Mr. Knapton. Mr. Ross. WHEELS. From OY. Preliminary test…

Scan308 The unsatisfactory performance of the 900 Lead Larger Diameter 40/50 steering worm.
View original record X7430 To RHC. from Hs/Rn. Hs/Rn2/LG1 6.8.23. 900 LEAD LARGER DIA. 40/50 STEERING WORM. This steering has proved unsatisfactory on 12-EX car. For the time being therefore it is no use proceeding with…

Scan309 Longer steering box for an E.A.C.7 chassis to allow for greater angular movement.
View original record X7430 RMC c. Hs/Rm. BY/HEB4/M.21.8.28. RECEIVED 21 AUG 1928 E.A.C.7.CHASSIS. STEERING COLUMN & BOX SEC:7050. LONGER STEERING BOX TO ALLOW FOR GREATER ANGULAR MOVEMENT OF ROCKING SHAFT TO SUIT 7.500…

Scan310 Instructions for altering the steering box and supplying associated parts for an E.A.C.7 chassis.
View original record c. Hs/Rm. 74-30 BY/HEB4/M.23.8.28. E.A.C.7. CHASSIS. STEERING COLUMN & BOX SEC:7050. LONGER STEERING BOX TO ALLOW FOR GREATER ANGULAR MOVEMENT OF ROCKING SHAFT TO SUIT 7.500 PENDULUM LEVER. Further to…

Scan311 The cancellation of 'B' type pedals and the modelling of 'D', 'E', and 'C' type pedals.
View original record 77430 BY. from DA/EV. c. to BJ. Wor. Hs. DA/EV3/28.8.28. RE. 'SS' PEDALS. X.7470 X.7430 On N.sch.2531 and 2543 we shewed the particulars of the 'B' type pedals. We send herewith N.sch.2671 shewing the…

Scan312 Driving seat positions and component specifications for 'C', 'D' and 'E' type steering.
View original record BY. from DA/EV. c. to BJ. Wor. Hs. c. to Mr. Burton. 47430 EA/EV2/28.8.28. 'SS' X7830 X.7500 DRIVING SEAT POSITIONS. X7430 X.7311 We send herewith N.sch.2646/8 shewing the following features for 'C',…

Scan313 Design and trial of new steering wheels for Phantom and India models, with an increased diameter.
View original record BY. from DA/EV. c. to BJ. C. Hs. 47430 DA/EV1/M30.S.28. RE. STEERING WHEELS. X.3861 X.5430 20 HP. AND 40/50. X.7430 X.4557 We send herewith N.sch.2689 and 2690 shewing steering wheels for Phantom and…

Scan314 Requesting an update on the status of the 'Phantom' 'E' Steering for the 12.EX chassis.
View original record S/W. Hs. +7430 Sg6/M/7.9.28. Re: 'Phantom' "E" Steering. Referring to Hs1/LG20.7.28. - I should be glad if you would kindly let me know how matters now stand in regard to the above, and our being able…

Scan315 Fitting of Phantom 'E' steering and other jobs on the 12-EX car.
View original record X7430 To Sg. from Hs. Hs1/LG10.9.28. PHANTOM 'E' STEERING. X7430 X7250 (crossed out) With reference to Sg6/M7.9.28. 12-EX car is at present in the shop having the E. steering fitted. There are several…

Scan316 Modifications to steering plates and springs for testing on car 12-EX in France.
View original record To RHC. from Hs/Rn. X7430 Hs/Rn3/LG21.9.28. 12-EX STEERING. N.SCH.2296. X7430 (handwritten and crossed out) You will recollect that in order to get the car out to France the last time, we turned the…

Scan317 Requesting the modification of an attached spring drive piece for an experiment on a pendulum lever.
View original record To RHC. from Hs/Rn. X7430 Hs/Rn2/LG26.9.23. PENDULUM LEVER USED AS SPRING DRIVE. Will you please modify attached spring drive piece and make the three small stops. We are anxious to complete this…

Scan318 Blueprint for stops for a damped spring steering system.
View original record XSA785 Table: TOTAL MOVEMENT | "A" -.5 4° | 1.295" 8° | 1.142" 12° | .987" Title: STOPS - DAMPED SPRING STEERING- 1 OFF EACH - S/N- Annotations & Dimensions: DRILL .125" DIA C'SINK 60° .950" -.5…

Scan319 Modification to a driving dog for damped spring steering.
View original record 2L54/35 2.175" RAD +0 -5 .150" +0 -3 .200" +2 -0 SPECIAL DOG REDUCED TO THE SAME RADIUS AS THE OTHER THREE, & SLOTTED FOR STOPS. 4 HOLES DRILLED & TAP S.B.A. WITH STOP IN POSITION, .250" DEEP.…

Scan320 Requesting an availability date for the Phantom 'E' Steering vehicle for sales inspection.
View original record X7430 S/W. Hs. Bs9/M/5.10.28. Phantom 'E' Steering. Referring to your Hs1/LG10.9.28. wherein you informed us you anticipated having 12.EX. on the road in about 10/14 days from then, would you kindly…

Scan321 Request to arrange a trial for a damped pendulum lever on EAC. 7.
View original record X7430 HS. FROM DA. ORIGINAL DA3/M10.10.28. Referring to the latest damped pendulum lever - N. scheme 2600 - R. would have liked one of these tried on EAC. 7. Could you arrange to do so? DA.…

Scan322 Design for a damped pendulum lever with leaf springs.
View original record NSch 2600 THESE NUTS SHOULD BE SCREWED UP HARD IN ORDER TO FLATTEN OUT ALL THE PLATES AND RELIEVE THE CENTRE SECTION OF SPRING OF ALL STRESS DUE TO LOAD APPLIED TO THE ENDS OF THE SPRINGS. AT .500"…

Scan323 Method of central lubrication for the pendulum lever ball end.
View original record #7430 BY. from DA. c. to BJ. HS. DA6/M10.10.28. 'SS' CENTRALISED CHASSIS LUBRICATION. X.3806 PENDULUM LEVER. X.7430 X.4400 We send herewith N.sch.2737 which we have shewn the method of getting central…

Scan324 Testing and movement of the 12-EX car in relation to 'E' Steering.
View original record W/S. X7430 Hsl/LG11.10.28. RE. 'E' STEERING. X7770 Replying to Bs9/M5.10.28. 12-EX car is now on test and our programme is to take this car to WW. next week. After R. has seen it we will arrange for…

Scan325 Standardisation of a semi-isolation scuttle scheme to prevent scuttle jellying and reduce steering column vibration.
View original record RR 755 REVISED (10H) (D.C. 777 - 29-2-28) MF C.LTD 47430 Completed 11/10/28 STANDARDISATION of CHASSIS PARTS. Date 23.3.28 Description of Parts. SEMI ISOLATION OF SCUTTLE SCHEME. X No. 4613 Drawing…

Scan326 Signed agreement table regarding the standardisation of coachwork features.
View original record STANDARDISATION OF COACHWORK FEATURES. SIGNATURE. LORD HERBERT SCOTT FOR C.S.C. MR. EVERNDEN FOR LEADING COACH-BUILDERS. DATE+ 4.5.28 20.4.28 REMARKS. Agreed - subject to cost being approved. Herbert…

Scan327 Fitting of a damped pendulum lever to vehicle EAC.7 and the associated required parts.
View original record To DA. from Hs/Rm. Hs/Rml/LG17.10.28. With reference to DA3/M10.10.28. There is no doubt that we could arrange to fit the latest type damped pendulum lever N. sch. 2600 on EAC. 7. You will appreciate…

Scan328 The urgent trial of a damped pendulum lever on car EAC.7.
View original record Hs. from DA. 47430 DA1/M20.10.28. RE. DAMPED PENDULUM LEVER. X. 7430 X. 7450 In reply to Hs/Rml/LG17.10.28, R's object in instructing us to get the damped pendulum lever tried on EAC.7. was in order…

Scan329 Request for particulars of steering and pedals for experimental cars 21-EX, 22-EX, and 23-EX.
View original record X7430 To DA/EV. from Hs. Hs3/LG12.11.28. BODIES FOR 'SS'. X7420 We should be glad if you will let us have particulars of the steering and pedals for 21-EX, 22-EX and 23-EX cars. Hs.

Scan330 Arrangements to fit a damped pendulum lever N. sch. 2800 onto EAC.7.
View original record To DA. from Hs/Rm. X7430 Hs/Rml/LG17.10.28. X7450 With reference to DA3/M10.10.28. There is no doubt that we could arrange to fit the latest type damped pendulum lever N. sch. 2800 on EAC.7. You will…

Scan331 Query regarding the availability of 'E' type steering on 12-EX for inspection in London.
View original record X7430 Bs2/K/29.10.28. S/W. Hs. copy to Sn. [struck through] Can you now give us any idea as to when the "E" type steering on 12-EX will be available for inspection by the S.C. in London. Bs.…

Scan332 Potential ergonomic and visibility improvements for the steering and pedal setup on chassis 12-MX.
View original record X7430 PN.2/WT2.11.28. S/W. HS...from PN. Copy to Wor. [Illegible stamp] Chassis No. 12-MX. The new E. steering on this car with the new pedal positions etc appear to be very pleasant and useful in…

Scan333 Specifying the required steering column types for bodies 21EX, 22EX, and 23EXM.
View original record [k in box] to HS. BP. from EV. X7430 ORIGINAL EV13/12.11.28. RE "S.S". STEERING COLUMNS. Please note that the columns required on the 3rd. 4th. & 5th. bodies. 21EX.22EX & 23EXM respectively will be…

Scan334 Post Office telegram regarding steering column specifications for various models.
View original record POST OFFICE TELEGRAPHS. x7430 Office Stamp: DERBY 13 NOV 28 Time handed in: 10.57 Office of Origin: CHICHESTER Words: 18 To: ROBOTHAM ROYCAR DERBY = Message: S S COLUMNS 21 EX C 22 EX D 23 EX SPECIAL…

Scan335 Relaying a telegram concerning 'SS' columns and special angle sports chassis.
View original record X7430 To BY. from Hs. Hs/LG14.11.28. We have received the following telegram from DA/EV :- 'SS' COLUMNS 21-EX 'C', 22-EX 'D', 23-EX SPECIAL ANGLE SPORTS - EVERNDEN. Hs.

Scan336 Fitting and performance of shock absorbers and a damper pendulum lever on the 14-EX car.
View original record To R. from Hs/Rm. x7430 Hs/Rm2/LG16.11.28. 14-EX CAR. x7520 We fitted the shock [word crossed out] absorbers on this car with dynamic restrictions front and rear in addition to a valve load…

Scan337 Suggesting a new naming convention for steering column positions for ease of communication via telegraph.
View original record HS. BY. from R. DA. c. to BJ. SG. 47430 R2/M21.11.28. STEERING POSITIONS. X. 7430 X. 8430 X.1775 When we introduce or adopt anything like the recently improved steering column positions we ought to…

Scan338 Nomenclature for steering positions to avoid confusion.
View original record X7430 BY5/G.26.11.28. R. c. Hs. c. DA. c. Sg. STEERING POSITIONS. Referring to R2/M21.11.28. which is apparently the result of Sales suggesting new nomenclature for the steering positions, we pointed…

Scan339 Steering positions and body subframe requirements for 'S.S.' experimental chassis.
View original record RHC. c. Hs. c. BY/HEB. c. BY/TWD. c. BY/CS. c. BY/RD. X7430 BY/Cghl/G.1.12.28. 'S.S.' STEERING POSITIONS. The latest proposal is that the sixth chassis (23-EX) should be fitted with 'E' type steering,…

Scan340 Instructing the dispatch of two subframes to coachbuilders Hooper's and Barker's for specific chassis.
View original record Hn. from DA/EV. c. to Hs. X7430. DA/EV1/M8.12.28. RE. SUBFRAMES. X.7370 X.7830 X.7430 Please send one subframe to Hooper's and one to Barker's. They are both alike. We will instruct the bodies by…

Scan341 Print for a Barker enclosed limousine body on a 'D' steering SS chassis.
View original record BY. from DA/EV. c. to bJ. Hs. X7430 DA/EV10/M18.12.28. 21-EX. X.7430 X.7830 We send herewith N.sch.2776., shewing the Barker enclosed limousine on a 'D' steering SS. chassis. This body will be ready…

Scan342 Sending drawings for a Hooper Pullman landaulet 'C' column and seating accommodation.
View original record To BY, from DA/EV. c. to BJ. Hs. X7430 DA/EVll/MM/8.12.28. 22-EX. X.7430 X.7830 We send herewith N.sch.2781 Hooper Pullman landaulet 'C' column on SS. and N.sch.2783 the seating accommodation for the…

Scan343 Technical memorandum discussing issues with the 'SS' Brakes servo performance and design compared to the Phantom model.
View original record To DA. from Hs/Rm. c.c. to BY. c.c. to Wor. X7430 Hs/RmL/LG18;12.28. 'SS' BRAKES. X7420 X7370 The two chassis we have so far tried with brake leverages to N.sch.2539 and servo arrangement to…

Scan344 Comparison of two servo designs ('40/50' and 'SS') with calculations for braking forces and efficiency.
View original record contd :- -2- possible to lock the front wheels with a 'kick' application of the pedal, whereas with gradual application the rear wheels would always skid first. It would therefore appear that for…

Scan345 Brake servo performance, modifications to cams and levers, and chassis weight savings for the SS model.
View original record contd :- -3- SS. servo has only 56% of the power of the old 40/50. This is rather the impression that is given on the road. To bring the servos on equality, therefore, we have fitted 30° cams. The…

Scan346 Page of calculations and analysis regarding servo braking efficiency for car 18-EX, comparing different cam angles.
View original record contd :- -4- DIRECT : 16.65/6.25 x 1.375/1.725 x 2.00/2.00 x 1.875/4.00 x 2.85 x 16.2 = 21.5 SERVO REAR : 16.65/6.25 x 1.37/1.725 x 2.125/2.00 x 2.85/4 x 16.2 x S = 26.5 X S = 26.5 X .85 = 22.3 SERVO…

Scan347 Correction notice regarding steering positions for models 21-EX and 22-EX.
View original record X7430 RMO c. Hs. c. BY/HMB c. BY/IWD c. BY/CS c. BY/ED BY14/M.21.12.28. 'SS' STEERING POSITIONS. Referring to BY/Cgh1/G.1.12.28, wherein it is stated that 21-EX. is to be "C" Type Steering, 22-EX. is…

Scan348 Modifications to the frame to resolve difficulties in withdrawing the 'SS' steering assembly.
View original record X. 7430 BY. from DA. c. to BJ. Hs. DA2/M29.12.28. 'SS' STEERING. Replying to BY/CGH3/N13.12.28., as far as we can see from the drg. any difficulty there is arises with N.sch.2574. We have indicated on…

Scan349 Tests of an 'SS' engine mounting using rubber strips to reduce vibration.
View original record To R. from Hs/Rm. c. to BJ. Wor. c. to SG. E. c. to DA. BY. X7430 Hs/Rm2/LG9.1.29. 'SS' ENGINE MOUNTING. X7005 Further to our Hs/Rm2/LG7.1.29. We have now carried out further tests with the 4 engine…

Scan350 Experiments with rubber isolated engine mountings to reduce engine roughness and vibrations.
View original record To R. from Hs/Rm. X7436 Hs/Rm2/LG7.1.29. c. to BJ. SG. c. to WoR. HS. c. to DA. BY. c. to E. 'SS' ENGINE MOUNTING. X7005 = We have tried four engine feet isolated with thin strips of sheet rubber. The…

Scan351 Ineffective dampers and tests being carried out on a 20 HP car.
View original record contd :- -2- dampers ineffective. We are carrying out tests in parallel on the 20 HP. car on the lines suggested in your telegram. Hs/Rm.

Scan352 Blueprint showing a cross-section and mounting plate for an experimental engine test.
View original record S.S. EXP ENGINE TEST ROLLS-ROYCE, LIMITED PRINT ROOM 7 JAN 1929

Scan353 The testing and results of 'SS' engine mountings to reduce vibration.
View original record To E. from Hs/Rn. c.c. to DA. c.c. to Wor. X7430 Hs/Rm5/LG8.1.29. 'SS' ENGINE MOUNTING. X7430 We have today wired you as follows :- "ELLIOTT - FOUR FEET ON STRIP RUBBER GIVE EXCELLENT "RESULTS STOP…

Scan354 The advantages of a rigid frame with a cross member for improved car control.
View original record contd :- -2- We feel convinced that it would be very undesirable to consider removing the cross and going back to our flexible frame now that we have appreciated the advantages which torsional…

Scan355 Secret memo regarding the steering and body type for vehicle 23-EX.
View original record X7430 FROM DA/EV. SECRET. DA/EV2/M8.1.29. Copy to HS/RM. SS. STEERING POSITION. 23-EX. Thank you for BY/CGH3/G5129. 23-EX. should be fitted with E. type steering. The body on this car will be an open…

Scan356 Request for a scheme to modify controls on the S.S. steering wheel, as suggested by 'R.' at Le Canadel.
View original record X7430 To Da. from Hs. c. By. WOR. Hs4/T16.1.29. S.S. CONTROLS ON STEERING WHEEL. X7430 / X7240 When at Le Canadel, R. suggested we ought to have the modified controls on the steering in the first S.S.…

Scan357 Design for lowering the controls on the steering column.
View original record Hs. from DA. c. to Wor. BY. X7240 DAL/M19.1.29. 'SS' CONTROLS ON STEERING COLUMN. X.7240 X.7430 Replying to Hs4/E16.1.29, we had made some progress with a design for lowering the controls on the…

Scan358 Proposal for altering the controls on top of the steering wheel to reduce their height.
View original record BY. from DA. c. to BJ. Hs. X7240 DA3/M22.1.29. 'SS' CONTROLS ON TOP OF STEERING WHEEL. X. 7240 X. 7430 We send herewith N.sch.2809 shewing the proposed arrangement for reducing the height of the…

Scan359 Outstanding work for the 'SS' Production 10,000 mile car, including items from 'Camacha' and controls.
View original record 47430 Wor. from DA. c. to HS. DA1/M21.1.29. 'SS' PRODUCTION 10,000 MILE CAR. X.7941 X.7240 X.8770 X.7430 E. has shown me a letter from you re. items outstanding from WW. for production 10,000 miles…

Scan360 Performance of side steering tube ends on SS cars during a 10,000-mile test.
View original record To BY. from Hs/Rn. X7430 c. to Wor. Hs/RM6/LG22.1.29. SIDE STEERING TUBE ENDS. X7450 X8450 The SS. cars that have run in France have so far been fitted with side steering tubes having ends to…

Scan361 Lowering steering column controls and standardizing larger steering wheels.
View original record DA. Hs. from R. BY. c. to BJ. Wor. E. c. to SG. C. 47430 R4/M23.1.29. X.7430 X.7240 X.5430 X.5240 CARS - STEERING COLUMN CONTROL. It will be remembered that some of our users have suggested that these…

Scan362 Wear and failure issues with spring bearings and steering components, comparing SS and Phantom models.
View original record Hs. from DA. c. to BY. 47430 DAL/M30.1.29. SECRET. S.S. X.7770 X.7430 X.7410 X.3806 With reference to Hs2/LG25.1.29. and Hs/RmL/LG 25.1.29., we are dealing with the points mentioned where possible,…

Scan363 Suggestions for protecting overflow pipes and problems with soldered joints on petrol and lubrication pipes.
View original record Contd :- -2- With reference to Item 1. we are sending you immediately some suggestions for protecting these overflow pipes from mud. X.3806 With reference to the items in MsXX HS2/LG25.1.29 the petrol…

Scan364 Wear issues and proposed solutions for side steering tube ends, scheme 2301.
View original record To HY. from Hs/Rm. X7450 c. to DA. c. to Wor. Hs/Rm3/LGS. 3. 29. N. SCHEME 2301. SIDE STEERING TUBE ENDS. In view of GWH's report that wear had taken place on the pendulum lever ball end, we have been…

Scan365 Assembly and standardisation instructions for 'SS' type side steering tube ends.
View original record To MX. } To Wor. } from Hs/Rn. c. to Sft. c. to BY. c. to Hm. c. to DA. X7450 Hs/RmG/LGS.3.29. ERECTION OF 'SS' TUBE ENDS. N.SCH.2301. This side steering tube end will shortly be standardised. It will…

Scan366 Cross-sectional diagram of the S.S. Side Steering Tube Ends, highlighting points for fitting up.
View original record S.S. Side Steering Tube Ends N. Sch 2301 P A N S GAP POINTS REQUIRING ATTENTION WHEN FITTING UP R.R. LIMITED PRINT ROOM. 7 JUN 1929 DERBY

Scan367 Cross steering tube ball ends.
View original record 47430 To BY. from Hs/Rn. Hs/Rn2/LG4. 4. 29. 47430 Re. CROSS STEERING TUBE BALL ENDS. With reference to Mxl/T4. 4. 29. We send you herewith ball end and pad referred to by Mx. The outer pad is grooved…

Scan368 The return of four springs for a special test on Chassis No. 89 - KR.
View original record X7450. S/W. HS/Rm. LE7/H/10.4.29. Chassis No. 89 - KR. I am returning to you the four springs sent down for fitting to the side steering tube of the above chassis for a special test. J.L.E.

Scan369 Letter discussing a broken shock absorber and requesting steering system experiments on car 22-EX.
View original record 47430 Expl: Dept: Messrs. Rolls-Royce Ltd., Derby. 10th. April 1929. 47941 Hotel de France, Chateauroux, Indre, France. Mr. Hancock from Hs/Rn. 22-EX CAR. (1) SHOCK ABSORBERS. We have received your…

Scan370 Propeller shaft leaks, shock absorber arrangements, and the K.S. telegage.
View original record contd :- -2- steering tube to N.sch.2258. We should like you to try this out and report on it. (d) We should also like you to state what arrangement of front shock absorbers give the best compromise…

Scan371 Return of four special side steering tube springs for chassis 89-KR.
View original record W/S. Cx. from Hs. X7450 Hs1/LG11.4.29. X4117 We have had a note from JLE. saying that he is returning the 4 special springs we sent you for the side steering tube springs on chassis 89-KR. We should…

Scan372 Letter discussing braking linkage efficiency and the supply of new Ferobestos brake linings.
View original record +7430 Expl: Dept: Messrs. Rolls-Royce Ltd., Derby, Angleterre. 19th. April 1929. 27541 Hotel de France, Chateauroux, Indre, France. Mr. Hancock from Hs/Rm. We are in receipt of your report of the…

Scan373 Continued memorandum discussing brake lining performance, modifications, and steering problems.
View original record contd :- -2- These linings as far as I remember gave excellent results except that we found that they had worn rather excessively at the end of the 10,000 miles. The makers now contend they have…

Scan374 Modifications and testing for steering and suspension components.
View original record contd :- -3- cross steering tube which from your reports you have never previously tried with two front shock absorbeds on. We should very much like you to find out whether it is the friction in the…

Scan375 10,000-mile test on the 22-EX car, detailing issues with steering, shock absorbers, slipper drive and the starter motor.
View original record To Sg. from Hs. x7430 Hs4/LG22.4.29. 10,000 MILES TEST ON 22-EX CAR. x7941 x7655 x7430 Replying to Sg20/E19.4.29. Referring to the report dated 10th.April. The reason for the remarks that the steering…

Scan376 High load required on the 'SS' steering system and requesting a spring design.
View original record x7430 To DA. from Hs/Rn. Hs/Rn4/LG23.4.29 'SS' STEERING. x7430 x7425 We have been carrying out a considerable amount of work on the SS. steering. We find that with the larger balls in the cross…

Scan377 Schemes for controls on the steering column for the India 4 model, including an option with a Klaxon switch.
View original record BY. from DA. c. to SG. Hs. +7240 DA6/M23.4.29. INDIA 4. CONTROLS ON STEERING COLUMN. X. 7430 X. 2740 Herewith we send N.sch. 2882 shewing the controls on the top of the steering column lowered into…

Scan378 Letter to Mr. Hancock in France discussing steering setup, tyre effects, and a damaged starter motor/flywheel.
View original record X7430 Expl: Dept: Messrs. Rolls-Royce Ltd., Derby. 6th. May 1929. X7941 Hotel de France, Chateauroux, Indre, France. Mr. Hancock from hs/rm. We thank you for your reports dated 2.5.29, 3.5.29 and…

Scan379 Letter discussing braking tests and requesting details and feedback on cross steering tube springs.
View original record contd y- -2- We have carried out braking tests in parallel with your own here and find that with woven cotton servo and .5° cams, short levers on both ends of the pedal counter- shaft and reduced…

Scan380 Proposal to change the spring rating for the S.S. chassis steering side tube.
View original record X7450 Hs. Dept. BY4/G.14.5.29. S.S. CHASSIS - STEERING SIDE TUBE SPRINGS. R. says he considers we should fit springs into the side steering tube with a rating of 2000 or 2500 lbs. per inch instead of…

Scan381 Specifications for S.S. side steering tube springs.
View original record To BY. from Hs/Rm. x7450 Hs/Rm1/LG15.5.29. S.S. SIDE STEERING TUBE SPRINGS. x7450 x7430 With reference to BY4/G14.5.29. We are not yet in a position to recommend any departure from the present 1500…

Scan382 New springs for 'SS' steering column controls being satisfactory for production and a request to correct lever movement.
View original record To BY/HEB. from Hs/AJL. X7240 Hs/AJL1/LG18.6.29. 'SS' STEERING COLUMN CONTROLS. X7430 The new springs F.81046 supplied at our request to bring the steering column control operation in line with the…

Scan383 Alterations to the 'SS' steering lock to achieve a 38 degree lock.
View original record X. 7430 BY. from DA. c. to SG. Hss DA3/M23.5.29. 'SS' STEERING LOCK. Replying to BY/CGH2/G17.5.29. re. reduction of the steering lock by the shaft of the front axle control damper, we send herewith…

Scan384 Strength requirements for S.S. side steering tube springs.
View original record To BY. from Hs/Rn. x7430 Hs/Rnl/LG15.5.29. S.S. SIDE STEERING TUBE SPRINGS. x7450 With reference to BY4/G14.5.29. We are not yet in a position to recommend any departure from the present 1500 lbs/in.…

Scan385 Standardisation of the cross steering tube and the two available spring options for different ball end loadings.
View original record x7430 To BY. from Hs/Rm. Hs/Rm1/LG14.6.29. c. to Mx. Hm. CROSS STEERING TUBE. x7425 The cross steering tube standardised is N.sch.2797. There are two springs available to give different ball end…

Scan386 New springs for the 'SS' steering column controls and a request for production corrections.
View original record To BY/HEB. from Hs/AJL. X7430 Hs/AJL1/LG18.6.29. 'SS' STEERING COLUMN CONTROLS. X7430 (crossed out) X7240 The new springs F.81046 supplied at our request to bring the steering column control operation…

Scan387 Report from Bourges, France, detailing road tests, fuel supply issues with the Autovac, and speedometer discrepancies on car 21EX.
View original record HÔTEL D'ANGLETERRE CENTRAL CH. LE BIHAN PROPRIETAIRE BOURGES TÉLÉPHONE: 51 X7432 Sunday. Bourges. 23-6-29 To, Mr Hives. Expt Dept. R.R. Ltd. Dear Sir, Your letter dated 21-6-29 received at Folkestone…

Scan388 Vehicle road test detailing issues with steering, engine vibration, and fuel starvation.
View original record We left Boulogne after lunch and drove to Paris, and PN's first criticism, was the steering of the car. He said it was far too light, and not the same as when he passed the car, when the steering was…

Scan389 Test drive report complaining about the steering and stability of Chassis 20-EX.
View original record Hs. from Hm. x) 430. Hm15/W10.2.30. Re Chassis 20-EX. I ran this Car about 320 miles over the week-end, and I do not like the Steering at all. Its worst feature is the absence of stability at high…

Scan390 Steering performance and radiator 'jellying' on a Phantom II Coupé during road tests.
View original record 87430. To: Hs. Re: Phantom II Steering We have just had a most interesting test of steering on a Coupé Phantom II on a really bad bit of road, rather like the stretch that used to exist between…

Scan391 Test results and recommendations for the Phantom II steering system.
View original record To BY. From Hs/Rn. c. to MX. c. to ZP. x7430 Hs/Rn.1/W.12.5.30. x401 x7425 x7430 PHANTOM II STEERING. We carried out most careful tests on the first Phantom II car in France, to determine the best…

Scan392 Recommendations regarding Phantom II steering complaints, focusing on wheel balance, tyre pressure, and pivot lean.
View original record To H.M. For Depot Sheet. From HA/MM. C. to MX. C. to HY. X7430 He/MM.1/MJ.13.5.30. X.401 X.7520 X.7810 X.7420 X.7920 X.7430 X.7425 PHANTOM II STEERING. We have investigated one or two cases of Phantom…

Scan393 Technical notes on steering tube adjustments, 'toe-in' settings, and shock absorber issues.
View original record -2- the measurement of pivot lean. (4) CROSS-STEERING TUBE. A very important feature in the functioning of the steering is the "toe-in" of the front wheels, or front wheel "gather" (Page 13 Steering…

Scan394 Poor steering issues related to shock absorbers and tyres, including a diagram for testing cross-steering tube load.
View original record -3- It is possible that when the shock absorbers are filled, all the air is not excluded from the system and consequently as the car is driven about this air is expelled and the oil level falls.…

Scan395 Blueprint showing a cross-section of a steering tube with assembly and testing specifications.
View original record GAP HERE .005 TO .015 IF THIS GAP IS TOO GREAT WHEELS MAY TOE IN EXCESSIVELY (A) PACKING WASHERS FITTED HERE TO INCREASE POUNDAGE (B) STANDARD POUNDAGE REQUIRED TO TWIST THE CROSS STEERING TUBE BY…

Scan396 Seating positions, dimensions, and adjustments for different driver types.
View original record X7430 C. from Da&Ev. c. Sg. E. Hs. Da/EV3/M29.5.30. SEATING POSITIONS. X. 7430 X. 5430 X. 7470. X. 5470. It was demonstrated at a conference at WW. yesterday that the driven seats of our experimental…

Scan397 Need to improve the design and placement of control levers on the steering wheel.
View original record [Handwritten top left] Hs [Handwritten top right] M430 [Handwritten top right, faint] 17/8/30 To R. from Sg. re Control Levers Sg27/B.30.6.30 Copy to Wor. Hs. on Steering Wheel. BY. EP. E. DA. I have…

Scan398 The design of steering column controls, comparing the company's rack system to American friction-based systems.
View original record Extract from - SG. RG. } FROM R. HS. BY. } X7430 R1/M8.7.30. WORK AT WW. X.7240. X.7430. CONTROLS ON STEERING COLUMN. DA. is working on these. The wheel is being dished slightly more, and the controls…

Scan399 Proposal to standardise an all-black finish for the 40/50 Chassis steering wheel.
View original record S/W. To Bl. from Sg. c. to Nor. c. to Hs. Hs. X 7430 Sg9/D14.7.30. Y5430. Re: 40/50 Chassis Steering Wheel. Referring to BY10/G.10.7.30, we saw the steering wheel with black finish all over on 25-EX.…

Scan400 Proposed controls on the steering column, including the Klaxon switch and control ball height.
View original record X 7430. By. from Da. C. Sg. Hs. Dal/M/9.7.30. X. 7240 X. 7430 P.2. CONTROLS ON STEERING COLUMN. We send herewith N. schs. 3130/31 shewing the proposed controls above the steering wheel still further…

Scan401 Availability of detail drawings for the Phantom II controls on the steering column.
View original record Sg. c. Hs. X7430. BY9/G.17.9.30. RE PHANTOM II CONTROLS ON STEERING COLUMN. With reference to Sg15/E.9.9.30. detail drawings in connection with the above have already been issued, and it is hoped to…

Scan402 Design of steering column controls, comparing them to American versions.
View original record Extract from - SG. RG.) FROM R. HS. BY.) X/7240 RL/M8.7.30. WORK AT WW. X.7240. X.7430. CONTROLS ON STEERING COLUMN. DA. is working on these. The wheel is being dished slightly more, and the controls…

Scan403 Standardisation of chassis parts for a steering wheel with an all-black finish.
View original record RR 755 REVISED (10H) (DG 349 19-7-29) BM. 6/543. COMPLETED 29.9.30. STANDARDISATION of CHASSIS PARTS. x7430. Date 14.7.30. Description of Parts. STEERING WHEEL ALL BLACK FINISH. X No. 7430, 5430…

Scan404 Proposed modifications to the controls on the steering column and the klaxon switch.
View original record By. from Da. C. Sg. Hs. X7240 Dal/M19.7.30. X.7240 X.7430 P.2. CONTROLS ON STEERING COLUMN. We send herewith N. schs. 3130/31 shewing the proposed controls above the steering wheel still further…

Scan405 Slight alteration to the S.S. Side Steering Tube setting.
View original record To BY. From Hs/Rn. c. to Da. X7450 Hs/Rn. 4/MJ.12. 8. 29. S.S.SIDE STEERING TUBE. -------------------- X7770. X7450. As a result of recent tests in France we wish to make a slight alteration in the…

Scan406 Blueprint detailing the modified S.S. tube setting.
View original record MODIFIED S.S. TUBE SETTING 2.338 REAR 2.255 FRONT INCREASE WIDTH OF END PIECE .062" AT EACH END OF TUBE P N a F79861

Scan407 Blank document page with a 'Print Room' date stamp.
View original record ROLLS-ROYCE, LIMITED PRINT ROOM, 12 AUG 1929

Scan408 Graph plotting load in LBS against the relative movement of two ball ends for different tube settings.
View original record LOAD LBS 500 400 300 200 100 0 -100 -200 -300 OPTINON TESTED 21 E.X. AS SENT OUT. MEAN OF BOTH ENDS. MODIFIED SETTING OF S.S. TUBE TO N. SCH. 2301 RELATIVE MOVEMENT OF TWO BALL ENDS.

Scan409 Mostly illegible document with a purple ink stamp from the Print Room in Derby.
View original record ROLLS-ROYCE, LIMITED PRINT ROOM, 13 AUG 1929 DERBY.

Scan410 Attaching a clearer print of proposed modifications to the side steering tube adjustment.
View original record To De. From Hs/Rm. filing X-7450- Hs/Rn.1/MJ.19.8.29. S.S. SIDE STEERING TUBE. We attach a print which shows rather more clearly the modifications we propose to make to the side steering tube…

Scan411 Modification to the setting of spring-loaded joints for the 'SS' Chassis side steering tube.
View original record RWC c. Ha/Rm. X7450. BY/HEB4/M.30.8.29. "SS" CHASSIS. SIDE STEERING TUBE SEC:7070. MODIFICATION TO SETTING OF SPRING LOADED JOINTS. In accordance with memo' Ha/Rm4/MJ12.8.29. please receive one Blue…

Scan412 Pros and cons of 'C' steering design and proposing experimental modifications for better ergonomics.
View original record SG. FROM DA/EV. X7430 DA/EV3/1.10.10.30. C. to HS. BY. CX. 'C' STEERING -P. 2. We have always criticised C. steering P. 2. on the grounds that the wheel projects very much above the waist line of the…

Scan413 Fitting of lower controls on the steering column for a Phantom II car, chassis 22-EX.
View original record x7430 Dg. c. Hs. ------ BY/Cgh2/G.13.10.30. RE PHANTOM II. CONTROLS ON STEERING COLUMN. ----------------------------------------- With reference to Sg15/E.10.10.30. the lower controls will be fitted…

Scan414 Proposed new position of the 'C' type steering column and required alterations to the dash and frame brackets.
View original record (9h) 16/30 X7430 DA/EW [crossed out] c. Sgr. [crossed out] c. Cm. [crossed out] c. Hs. BY/Cgh15/G.15.10.30. 'C' STEERING - P.2. With reference to DA/EV3/M10.10.30. the proposed new position of 'C'…

Scan415 Proposed modification to 'C' Steering, suggesting a trial on a car before final approval.
View original record [Handwritten top] X7430. (82) 16/10/30 [Handwritten left] Hs To Hs. from Sg. re "C" Steering. [Text struck through] Copy to BY. DA/EV. -Cx- Referring to DA/EV3/M10.10.30 we should like to see the…

Scan416 Arranging to fit a modified 'C' type steering column and improved controls to the same Phantom II car for evaluation.
View original record (8 1/2) 19 2/0 x7430. To Hs. from Sg. re P.II. Improved Controls on Steering Column. Sgl3/E16.10.30 Referring to BY/Cgh2/G.13.10.30 I was wondering whether you could arrange for the modified "C" type…

Scan417 Bringing experimental cars with lowered controls and modified steering to London.
View original record To Sg. From Hs. c. to Wor. C. c. to CX. Ds/EV. 87430. Hs.3/AJ.18.10.30. LOWERED CONTROLS & MODIFIED C STEERING. When we bring 25-EX. to London on Wednesday next, we will also being 22-EX. Exp. car…

Scan418 Layout and design principles for the instrument board on 'C' and 'D' type vehicles.
View original record X7430 BY. FROM DA/EV. DA/EV1/M27.10.30. Copy to - SG. CX. HS. P. 2. INSTRUMENT BOARD. N. 2. SERIES. X.7530. X.7430. We thank you for BY/CGH12/G231030., and also for the picture layout of the board for…

Scan419 Requesting remarks on criticisms of the reduced controls on the steering column.
View original record MS. FROM DA. X/7430 DA4/M/7.11.30. REDUCED CONTROLS ON STEERING COLUMN. X. 7430. X. 5430. We understand from R. that you have some criticisms to make on these controls. Unfortunately we did not see…

Scan420 Criticisms and proposed design changes for the lower controls on the steering column.
View original record x7430 Da. From Hs/Rm. Hs/Rm.4/AD11.11.30. LOWER CONTROLS ON STEERING COLUMN. x7430 With reference to, Da4/M7.11.30., Sg's criticisms of these controls were :- (1) That the large black knobs spoilt the…

Scan421 Requesting a steering wheel mock-up, discussing clearance issues with the mixture lever.
View original record HS/RM. FROM DA. X7430. DA2/M15.11.30. LOWER CONTROLS ON STEERING COLUMN. x.7430. X.5430. Thank you for HS/RM4/AD111130. Could you send us a steering wheel fitted up with the 'mock up' you refer to.…

Scan422 Modification request to improve accessibility of an oil hole on the 40/50 HP Chassis Steering Column Controls.
View original record RECEIVED 19 NOV 1930 BY/HRP c.Hs/GWH. 87430 BY/SS2/J.19.11.30. 40/50 H.P. Chassis Steering Column Controls. In order to improve the accessibility of the small oil hole in the Support Flange, will you…

Scan423 Modification and delayed implementation of a revised 'C' steering column.
View original record SG. FROM DA/EV. DA/EV2/M27.11.30. C. to HS/RM. C. to C. C. to EY. REVISED "C" STEERING - P.2. X.7430. We saw this fitted to 22-EX. and it was approved as far as the column was concerned, but the…

Scan424 Confirming the approval and arrangements for the introduction of the revised 'C' Steering on the N.2. Series.
View original record X7430 HS/Rm To EV. from Sg. re Revised "C" Copy to Hs/Rm. Steering - P.2. C. BY. Sg12/E112.30. I am in receipt of DA/EV2/M27.11.30. This memo. has, I think, crossed Hn's memo. of the 26th,…

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