Rolls-Royce Archives
| Identifier | Entry | ||
| img001 | Policy on the Universal Gearbox for B.III cars. | ||
| View original record | HPS. from Rm. By. Da. 1153 also -1260 Rm7/R.S.11.37. UNIVERSAL GEARBOX. Further to our conversation with you, owing to the decision to do no major alterations on the B.III, the policy with regard to… | ||
| img002 | Improvements to piston design, including skirt length and spring pressure. | ||
| View original record | To EH. from R. Copy to CJ. " " BN. " " WOR. Urgent. ORIGINAL RE PISTONS. I am pleased to hear that the longer piston promises to be better. Get the works to run from hand to mouth, as an increased… | ||
| img003 | Hurried inspection report on a 10 HP Fiat car, listing eleven points of concern. | ||
| View original record | To C.J. from R. c. to E.J. - WJH. c. to Wor. - CWS. c. to G. - HS. [Stamp: ORIGINAL] [Stamp: RECEIVED MAY 25 1922] [Handwritten: Hs] [Handwritten: MISC - OPs - FIAT + R] [Handwritten: SWALLOW… | ||
| img004 | Continued technical evaluation of a vehicle's springing, carburation, and chassis. | ||
| View original record | (2) 5" shorter than 'Peregrine', hence springing can never be made really good. (12) Carburation would require good petrol or water tem- perature carefully watching - there is only water heat to… | ||
| img005 | Engine suspension differences between the Goshawk, Goshawk 1, and Goshawk 11 chassis. | ||
| View original record | TO HS. FROM R. c.c. to CJ. BJ. EF. ORIGINAL RECEIVED 29 DEC 1922 GOSHAWK 1. X3481 3535 It will be very interesting to us to see this little chassis as soon as convenient for you to send it here, as… | ||
| img006 | Query regarding payment for petrol and a damaged tyre tube on the Hawk-Northcliffe chassis. | ||
| View original record | R.R. 235a (100 T) (S.H. 798. 10-12-20) G. 2948 ORIGINAL. TO HS. FROM E. R E3/M16.12.22 H-N RE. PETROL BOUGHT AT CHICHESTER. Would you kindly confirm that in addition to the cost of attention to the… | ||
| img007 | Design improvements to prevent warping in the 'Goshawk II' clutch plate. | ||
| View original record | To HS. from R. Copy to CJ. " " WOR. " " BY. " " DA. ORIGINAL RE "GOSHAWK II" CLUTCH. 4 R2/G7/9/21. X3407 X4244 X.3409 The warping of the plate is quite in accordance with what we anticipated, but we… | ||
| img008 | Halting experimental work on 'Vulture' or 'Buzzard' engines and prioritizing other useful parts. | ||
| View original record | To HS. from R. Copy to CJ " " WOR X 272 X 3786 X 352-8 ORIGINAL RE PROGRESS OF EXPERIMENTAL WORK. (HS1/LG8/4/21) Unless we are definitely waiting for work in the Experimental Dept. no work should be… | ||
| img009 | With diagrams illustrating six different designs for clutch plates or friction surfaces. | ||
| View original record | To HS. from R. -2- R2/G7/9/21 Contd. which were reported to give great satisfaction. The sixth one is one in which the plate between the friction surface and the hub is corrugated, each having its own… | ||
| img010 | Letter regarding a contribution for a presentation to Mr. Basil Johnson. | ||
| View original record | WICKESFIELD, WEST WITTERING, CHICHESTER. 14th Dec 1928 [STAMP: RECEIVED 20 DEC 1928] Dear Mr. De Looze. Thank you for your memo D1/DL 17.12.28 concerning presentation to Mr. Basil Johnson. I should… | ||
| img011 | Mr. Royce's feedback on a sample battery terminal and lead, with suggested improvements. | ||
| View original record | To EFC. from E. Copy to CJ. " " BN. " " BY. " " DA. " " EH. ORIGINAL X.1928 X.664 X604 RE LEADS AND TERMINALS FOR 40/50 H.P. STARTING AND LIGHTING BATTERY. 4 Referring to the sample terminal and lead… | ||
| img012 | Purpose of a small vent hole in R.R.C.H. Carburetters. | ||
| View original record | To E.H. from R. c.c. to J. c.c. to By. ORIGINAL R2/B14:6:17. Re R.R.C.H. Carburetters. With reference to your memo EH5/AT11:6:17, I have no knowledge of this small vent hole, except it may have been… | ||
| img013 | Reliability and test results of Watford magnetos based on a report from the Air Board. | ||
| View original record | To EH.) from R. Oy.) c. to J. ORIGINAL. R7/B22:5:17. [STAMPED] RECEIVED 28 MAY 1917 X.2375 Re Watford Magnetos. X.2753 I understand from the Works that there are doubts about the reliability of the… | ||
| img014 | The performance of engines in planes, comparing them to competitors and discussing issues of power, weight and propeller size. | ||
| View original record | To EH. from R. C to BJ. (crossed out) ORIGINAL R3/B28:7:17. X.2959 Re Performances of our Engines in Planes. With reference to the letter from Mr. Walker of the Aircraft Company on the performance of… | ||
| img015 | Aircraft engine performance, comparing with German planes and detailing improvements to the D.H.4 aircraft. | ||
| View original record | [Typed Text] To EH. from R. 2. 250 - 270 HP this engine will give. As I have written to Lord Herbert Scott, I believe that the Germans are using a larger plane for the weight of their equipment and… | ||
| img016 | Complaining about the excessive weight of the Goshawk II Maythorn limousine body on a 20HP chassis. | ||
| View original record | TO HS. FROM R. Copy to OJ. R4/M1.9.25. 7. GOSHAWK 11. I have repeatedly cursed the body on this car, and think it would be an everlasting disgrace to the 20HP., if we sold the car with such a body in… | ||
| img017 | Poor state of a top-heavy 20.HP specimen car and the bad impression it creates on visitors. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM R. Copy to CCJ BB [text is struck through] ORIGINAL [watermark] R3/M26.8.25. re. 20.HP. - 7.G.11. (TOP HEAVY SPECIMEN.) X4219 I believe that… | ||
| img018 | Weekly comparison of 20 HP chassis orders received for the financial years 1922-1923 and 1923-1924. | ||
| View original record | Tr5/DN24124. 5 20 HP CHASSIS ORDERS RECEIVED WEEK BY WEEK DURING THE PRESENT FINANCIAL YEAR, COMPARED WITH ORDERS RECEIVED DURING THE CORRESPONDING WEEKS OF THE PREVIOUS FINANCIAL YEAR. WEEK ENDING… | ||
| img019 | Weekly comparison of 40/50 HP chassis orders received for the financial years 1922-1923 and 1923-1924. | ||
| View original record | Tr3/DN23124. 3 40/50 HP CHASSIS ORDERS RECEIVED WEEK BY WEEK DURING THE PRESENT FINANCIAL YEAR, COMPARED WITH ORDERS RECEIVED DURING THE CORRESPONDING WEEKS OF THE PREVIOUS FINANCIAL YEAR. WEEK ENDING… | ||
| img020 | Summary of establishment charges per chassis from 1921 to the current financial year. | ||
| View original record | 27/7/23 ESTABLISHMENT CHARGES. In 1921 during the slump, it was decided to make every effort to reduce Establishment Charges (excluding depreciation) when we were manufacturing goods to the equivalent… | ||
| img021 | Cost and list price sheet for car parts and accessories for the Goshawk. | ||
| View original record | Goshawk. ① | ② Spare tyre 32 x 4 1/2 | 9. 1. 8 | 12. 19. - Lucas lamps | 13. 0. 0 | 20. - . - A.T. Speedometer | 7. 10. 0 | 9. 10. - Smith clock | 4. 10. 0 | 5. 10. - Horn | 2. 7. 6 | 3. 10. - Mascot… | ||
| img022 | List of assumptions used for calculating anticipated bank balances. | ||
| View original record | Tr9/DN13623. The attached anticipated Bank Balances have been calculated on the following assumptions :- (a) That orders will continue to be received at the rate of 8 40/50 H.P. chassis per week. (b)… | ||
| img023 | Departmental memo discussing the design and ergonomics of car pedals. | ||
| View original record | Header Text: (50 H) (X 247. 30.4.12) E.P. 1769. ROLLS-ROYCE LIMITED, 14-15, CONDUIT STREET, LONDON, W. TELEGRAMS: "ROLHEAD," LONDON. TELEPHONES: 1654, 1655, 1656 GERRARD. DEPARTMENTAL MEMO.… | ||
| img024 | Departmental memo regarding marks found on the dashboard of several cars, caused by the driver's feet. | ||
| View original record | R.R. 47A (X 247. 30.4.12) E.P. 1769. ROLLS-ROYCE LIMITED, 14-15, CONDUIT STREET, LONDON, W. TELEGRAMS: "ROLHEAD," LONDON. TELEPHONES: 1654, 1655, 1656 GERRARD. DEPARTMENTAL MEMO. This column is for… | ||
| img025 | Explaining the reasons for the company's unfavorable cash position, citing issues with chassis orders, Goshawk manufacture, and Aero work. | ||
| View original record | W. Tr21/DN/18.1.23. The attached Bank Statement shews that the present and immediate future cash positions of the Company are not as favourable as had been anticipated. The following are the reasons… | ||
| img026 | Chassis deliveries, sales, and inventory for the period May to July 1923. | ||
| View original record | Mr Claude Johnson F.R. J.S. RECEIVED AUG 8 1923 ROLLS ROYCE OF AMERICA INC Deliveries of Chassis to July 14, 1923 and Weekly Sales - May 19, 1923 to July 14, 1923 American Chassis Delivered To Test |… | ||
| img027 | Weekly breakdown of car orders for 40/50 HP and 20 HP models, comparing figures from 1922 and 1923. | ||
| View original record | 1922 1923 40/50 HP. 40/50 HP. 20 HP. Week ending 1st July........... 16 6 25 8th " ........... 6 8 18 15th " ........... 6 14 10 22nd " ........... 6 4 4 29th " ........... 5 3 15 5th… | ||
| img028 | Selling price breakdown for the Goshawk model and a detailed comparison with competitor vehicles' specifications and prices. | ||
| View original record | SELLING PRICE OF GOSHAWK When Works Cost with Tyres was | Price Fixed. 40/50 h.p. Rolls-Royce Chassis. | £1250. | £1850. (Present cost £970) Goshawk. | £700. | £1036. ----------------------- SCHEDULE… | ||
| img029 | Comparison table of 40/50 R-R model competitors' specifications and prices. | ||
| View original record | 40/50 R-R COMPETITORS. Make. | Chassis Price. | Bore and Stroke. | No. of cylinders. | Cubic Capacity. | Chassis price per cubic inch. | Treasury Rating. | Price per h.p. Treasury rating. 40/50… | ||
| img030 | Selling price of the Goshawk model and a price comparison with competitor cars. | ||
| View original record | SELLING PRICE OF GOSHAWK. When Works Cost with tyres was Price Fixed. 40/50 h.p. Rolls-Royce Chassis. £1250. (Present cost £970) £1850. Goshawk. £700. £1036. SCHEDULE PRICES OF COMPETITIVE CARS. Make.… | ||
| img031 | Comparison table of the 40/50 R-R model against its competitors' specifications and pricing. | ||
| View original record | C/C19.9.22. 40/50 R-R COMPETITORS. ------- Make. Chassis Price. Bore and Stroke. No. of cyl-in-ders. Cubic Capa-city. Chassis price per Cubic Inch. Trea-sury Rating. Price per h.p. Treasury rating.… | ||
| img032 | Memo discussing solutions to mitigate engine heat transfer into the passenger compartment. | ||
| View original record | COMPAGNIE HOTELIERE DES CENTRES DE TOURISME AUTOMOBILE Etablissements Poulard Ainé & Poulard Jeune reunis Mont-Saint-Michel 7 H.R. People will have high side doors to front seats. If they do not have… | ||
| img033 | Vehicle interior fittings like door height, matting, and floor boards. | ||
| View original record | height of side doors and nature of matting to front seats in connection with each chassis. I think there might be printed on the floor boards instructions as to height of side doors + recommending… | ||
| img034 | Letter regarding the dispatch of 2 Front Wheel Nail Catchers supplied by Ferranti Ltd. | ||
| View original record | X424 Hs. Wd/AW10/W17222. 17th Feb.1922. We send you herewith 2 Front Wheel Nail Catchers which have been supplied by Messrs. Ferranti Ltd., Hollinwood, Lancs. We believe that you have correspondence… | ||
| img035 | Chassis knowledge, bonnet shutters, and an instruction from Mr. Royce. | ||
| View original record | R.R. 647 (100 H.) (U.U. 859-1-5-14.) B. & H. 1924. ROLLS-ROYCE LIMITED, 14 & 15, CONDUIT STREET, LONDON, W. TELEPHONES: 1654, 1655, 1656 (GERRARD) TELEGRAMS: "ROLHEAD," REG., LONDON. Names and… | ||
| img036 | Comparative performance of wire versus wooden wheels, citing a magazine article and customer feedback. | ||
| View original record | Wete when G.T. conferring Mr. Johnson [Top right annotations:] NOV Baroness Tom C'ttee F Tech: J 24/XI/11 [Stamp:] 29 XI 11 [Handwritten note:] 91st meeting No doubt you have seen Campbell's article… | ||
| img037 | Note discussing customer concerns about wire wheels in relation to the London-Edinburgh trial and exports to India. | ||
| View original record | Climates. If we are to send many cars to India this should be considered. 4 Customers often ask why, if we are against wire wheels, we pinned our faith to them on such an important thing as the… | ||
| img038 | With a diagram discussing scuttle dash isolation on 40/50 models due to excessive movement. | ||
| View original record | To Hs. from Ev. Copy L.H.S. ORIGINAL SECRET EV/2/24-5-24. Re. 40/50 Scuttle Dash Isolation. 44613 We understand that you consider that, on some cars (40/50s), when the Scuttle and dash are totally… | ||
| img039 | Query regarding a deeper rubber washer between the dash and scuttle, and designing a complete scheme for chassis parts. | ||
| View original record | Should a deeper rubber washer be required between the dash + the Scuttle, the wooden armature can be recessed. A report on this matter as soon as possible would be valuable to us, as we wish to give… | ||
| img040 | Letter from S. Z. de Ferranti regarding fittings for front-wheel Nail Catchers for trial on a car. | ||
| View original record | X.424 HOLLINWOOD. LANCASHIRE. 9th February, 1922. Reply Messrs. Rolls-Royce, Ltd., DERBY. For the attention of Mr. Hives. Dear Sir, Referring to my recent visit to your Works, I now have pleasure in… | ||
| img041 | Letter discussing defective fittings, accompanied by a hand-drawn sketch of the component. | ||
| View original record | HOLLINGWOOD, LANCASHIRE. February, 1922. Ref: D.A.R / Date: 21.2.22 Dear Sir, for the attention of Mr. Hives. Further to my recent visit when I discussed with you the side members retaining and… | ||
| img042 | Internal note about locating a specific letter. | ||
| View original record | Mr. Johnson, I am sorry I have not a copy of the letter in question here as it was evidently written by Mr. Barlow to day. Derby Please let me see it. J. [Stamped Text] 12 JAN 1912 C 12 I B.12… | ||
| img043 | Departmental memo regarding the ventilation of the front seat. | ||
| View original record | R.F. 475 (50 H) (X 448. 16.12.11) E.P 798. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (TWO LINES). DEPARTMENTAL MEMO. This column is for Name of Person… | ||
| img044 | Letter to Napier enquiring about the patent status of their front seat ventilation system. | ||
| View original record | Copy. TBB6/L9112. January 9th. 1912. M. S. Napier Esq., Acton Vale, London. W. Dear Sir, We note that you had fitted to your large finished car at the recent Olympia Show, a special system of… | ||
| img045 | Letter from D. Napier & Son regarding responsibility for the bodywork and a ventilating device on a car exhibited at the Olympia Show. | ||
| View original record | Copy for Claud Johnson Esq., Messrs. Rolls-Royce, Ltd. 14 & 15, Conduit Street, W. AP. Handwritten note: File. Let me see our letter to them 11th Jan. 1912. Messrs. Rolls-Royce, Ltd. D E R B Y.… | ||
| img046 | Departmental memo discussing a report from Bombay on the suitability of wooden versus wire wheels for colonial cars. | ||
| View original record | R.R. 475 (100 H) (X 896. 3.5.12) E P. 1780. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person… | ||
| img047 | Letter from Mulliner discussing a dashboard ventilation arrangement, its purpose, and related patents. | ||
| View original record | CUSTOMERS' CARS ARE ONLY DRIVEN BY OUR STAFF AT CUSTOMERS' OWN RISK AND RESPONSIBILITY. MULLINER, LONG ACRE, LONDON, AND NORTHAMPTON, LTD. FIRE.—Mulliner, Long Acre, London, and Northampton, Ltd.,… | ||
| img048 | Proposal to connect bodywork to the dashboard using a flexible strip of leather to mitigate issues caused by chassis flex. | ||
| View original record | CUSTOMERS' CARS ARE ONLY DRIVEN BY OUR STAFF AT CUSTOMERS' OWN RISK AND RESPONSIBILITY. MULLINER, LONG ACRE, LONDON, AND NORTHAMPTON, LTD. FIRE.—Mulliner, Long Acre, London, and Northampton, Ltd.,… | ||
| img049 | Letter to Messrs Mulliner regarding separate dash boards and the relative movement of body and chassis. | ||
| View original record | TBB2/L6212. February 6th. 1912. Messrs Mulliner, 73-85 Bridge Street, Northampton. Dear Sirs, Re Separate Dash Boards. We beg to thank you for your letter of February 5th concerning this matter, and… | ||
| img050 | Letter to S. F. Edge Ltd. inquiring about a patent for a separate body and chassis dash arrangement to avoid infringement. | ||
| View original record | TBB3/L6212. February 6th. 1912. Messrs S. F. Edge Ltd., 14, New Burlington Street, London. W. Dear Sirs, We understand that your Mr Arthur Macdonald has patented an arrangement for separate body and… | ||
| img051 | Letter from S.F. Edge Limited providing patent numbers for an insulated body and a spring hinge. | ||
| View original record | "NAPIER" MOTOR CARRIAGES, VANS, TAXI-CABS, MARINE MOTORS. THE MOTOR GOODS SUPPLIED BY US ARE ONLY SOLD ON THE CONDITION THAT THEY ARE NOT TO BE EXHIBITED EITHER DIRECTLY OR INDIRECTLY AT ANY… | ||
| img052 | Internal memo requesting a set of ventilators be made and fitted to a London Edinburgh Type car. | ||
| View original record | Copy F. Dept. DO 1.8.12 Mr Johnson, Mr Royce Re Ventilators in side of scuttle for London Edinburgh Type Cars. Please see drawg F.2636, F.2637, F.2638, F.2639 showing cast aliminium ventilators &… | ||
| img053 | Internal departmental memo routing slip concerning Lord Dunraven's car 1420. | ||
| View original record | R.R. 476 (100 H) (LL 27. 27.7.12.) ROLLS-ROYCE LIMITED, 14-15, CONDUIT STREET, LONDON, W. TELEGRAMS: "ROLHEAD REG." LONDON. TELEPHONES: 1654, 1655, 1656 GERRARD. DEPARTMENTAL MEMO. This column is for… | ||
| img054 | Instruction memo discussing the testing and placement of dash ventilators. | ||
| View original record | R.R 300 (6 B) (L.I. 291. 20.6.12) G. 2662. ROLLS-ROYCE LIMITED. INSTRUCTIONS. 6290 F To: Mr Madin Order No. Customer's No. Re: N5/B71112 Dash Ventilators - lowered & sound. I think the matter should… | ||
| img055 | Rubbing of a nameplate showing the number 51LB. | ||
| View original record | PR ROLLS-ROYCE LTD LONDON & DERBY NO 51LB 51LB. | ||
| img056 | Enquiry from a collector about a maker's plate found on a mechanised rail-car in Jordan, suspected to be a WWI-era armoured car conversion. | ||
| View original record | FRK 47, Knightsbridge Road, Leabrook. South Australia - 5068. Feb 8, 1971 p/w Messrs Rolls Royce Ltd. Archives Dept. Dear Sir The distressing news of the probable dissolution of "Rolls" prompts this… | ||
| img057 | Letter from J.B. Goggs requesting information on a vehicle plate, specifically the vehicle type and production date. | ||
| View original record | The points I am most interested in are For what type of vehicle was the plate issued. Approx. date of production. Accept my sincere thanks in advance for any information you may be able to supply… | ||
| img058 | Modifications to fit an armoured car battery into the frame of a Standard 40/50 vehicle. | ||
| View original record | To BY. from Da. c. to CJ. c. to Wor. c. to Hs. ARMOURED CAR BATTERY IN FRAME USED ON STANDARD 40/50 X.4195 X.3619. In making use of the above battery the coachbuilding department have experienced… | ||
| img059 | Negative impact of larger diameter wheels on armoured car chassis and axles. | ||
| View original record | To BA. from R. Copy to Cd. " " BN. " " HS. " " PN. " " R.R. of America Inc. (For the attention of OY.) Handwritten notes top right: Rep 6 8-10-20 R1/G30/R/20 R. V. ANTI LARGER WHEELS - HIGHER STRESSES… | ||
| img060 | Confirmation of a telegram to Chichester regarding a government order and manufacturing capabilities. | ||
| View original record | CONFIRMATION OF TELEGRAM TELEPHONED TO CHICHESTER. [STAMP] ORIGINAL [STAMP] RECEIVED [HANDWRITTEN] X.4195 To W.O.R. from R) ROYCAR DERBY Copy to D.A. " " H.S. " " B.Y. WORMALD COPY OF MESSAGE… | ||
| img061 | Design and fitting of hand barring gear, an air pump, and a Maxfield pump for armoured cars. | ||
| View original record | To [illegible] from R. Copy to [illegible] " " HS. " " BY. X.4195 Ref E1 / 63-10-20 ORIGINAL (MISC R) HAND BARRING GEAR. [Handwritten]: R4/G21/10/20. 4 [Stamped]: 25 OCT 1920 RE ARMOURED CARS. Mr. Day… | ||
| img062 | Design memorandum for a tyre pump dashboard control mechanism for armoured cars, including an explanatory sketch. | ||
| View original record | To Mr. from E. Copy to CJ " " HM " " DM " " EPC. X 4197 REF G8 -10-20 ORIGINAL RE 40/50 H.P. TYRE PUMP E7/G21/10/20. ARMOURED CAR TYRE PUMP DASH CONTROL [Stamp: RECEIVED OCT 22 1920 ROUTING] We send… | ||
| img063 | Alternative lubrication method for a tyre pump on a 40/50 HP chassis, including specifications for valve springs and gearing. | ||
| View original record | To DA. from E. Copy to CJ. " " BN. " " BY. " " HS. " " EFC.X.4194 ORIGINAL. ARMOURED CAR RE TYRE PUMP - 40/50 H.P. CHASSIS. Referring further to the above, an alternative method of lubricating the… | ||
| img064 | Critique of War Office proposals for modifying 'Eagle' engines for use in tanks, citing vibration and flywheel design issues. | ||
| View original record | To H.R. J.O.G. Copy to C.J. H.H. R.W.H. C.R.F. H.S X.4-205 R. CRITICISES UNSOUND PROPOSALS FROM THE W.O. ORIGINAL from R. Ref Z 8-10-20 R8/G29/10/20. RECEIVED 11 NOV 1920 4 RE MODIFICATIONS TO "EAGLE"… | ||
| img065 | Design of various engine components including the carden shaft, flywheel, starter gear, and governor. | ||
| View original record | To B.J. & WGR. from R. -2- RB/G29/10/20 Contd. the carden shaft with its full torque of 11,000 ins. lbs., and in the event of the throttle being closed, it would be turned by the over-run of the tank… | ||
| img066 | Design criticisms, seeking clarification on whether to proceed with instructed work, await new designs, or prepare modifications. | ||
| View original record | To B.J. & WOR. from R. R8/628/10/20 Contd. assist the centrifugal action to close the throttle earlier in case the engine is running away without a load ? After making these criticisms we should be… | ||
| img067 | Proposal to fit a new back axle to armoured cars to overcome performance difficulties with climbing, cooling, and clutch slipping. | ||
| View original record | Copies sent to: CJ. Major heron & Col Hutchison DA7/G28621. 28th June, 1921. 1320 (6 lines) Col. Robinson, India Office, Great George Street, LONDON. Dear Sir, RE ARMOURED CARS. We have discussed the… | ||
| img068 | Vehicle performance under heavy loads, potential modifications to brakes, ratios, and clutch, along with performance figures. | ||
| View original record | Col. Robinson. -2- DA7/G28621 Contd. Mr. Royce is also of the opinion that if a great weight like 9688 lbs. has to be carried down 1 in 4, it would be desirable to increase the brakes somewhat, and… | ||
| img069 | Vehicle climbing performance based on weight, gradient, and wheel size. | ||
| View original record | Col.Robinson. -3- DA7/G28621 Contd. The maximum weight up a gradient of 5.9 (38" wheels) - 9220 lbs. The maximum weight up a gradient of 5.9 (40" wheels) - 8750 lbs. The actual weight taken up 1 in… | ||
| img070 | Proposals and agreements for a new axle design for armoured cars. | ||
| View original record | To R. from DA. Copy to CJ. EY. RE NEW AXLE FOR ARMOURED CARS. I again saw Col. Robinson and Major Lewin at the India Office yesterday, and Col. Hutchinson at the War Office. I shewed them the schemes… | ||
| img071 | The design and cost estimation for a new double reduction gear rear axle and brake system for armoured cars. | ||
| View original record | To BY. from DA. Copy to RU. DA1/G6/8/21. RE DOUBLE REDUCTION GEAR REAR AXLE FOR ARMOURED CARS. Please receive N.Scheme 932 general arrangement of centre box shewing bevel drive differential and… | ||
| img072 | Costs and logistics for supplying axles for armoured cars to the government for urgent dispatch to India. | ||
| View original record | To BY. from DA. -2- DA1/G6/8/21 Contd. consideration that is favourable to this object should be taken into account. Mr. Johnson has instructed me that I should give the government to understand that… | ||
| img073 | Impossibility of an armoured car carrying a proposed weight without a new axle and the challenges of sand testing. | ||
| View original record | To BJ. from DA. RE ARMOURED CARS. With reference to your BJ24/H25/8/21, it is impossible for the present car without the new axle, to carry the proposed weight of 4 tons 6 cwts. up some of the hills,… | ||
| img074 | Modification of a drawing for the rear lamp on Indian Armoured Cars. | ||
| View original record | To Mr. Thacker, from DA. DA5/G2/5/21. RE LAMP FOR INDIAN ARMOURED CARS. Replying to your THRL/CB29/4/21, it appears to be necessary to modify the drawing shewing the position of the lamps, in… | ||
| img075 | Performance issues and proposed alterations for armoured cars destined for India. | ||
| View original record | To R. from DA. Copy to BY. Mr. Maddocks. RE ARMOURED CARS. (INDIA) I went to see Col. Robinson at the India Office and Col. Hutchinson at the War Office on Thursday last. When the armoured cars for… | ||
| img076 | Comparing the performance of a car against a Crossley model, detailing tests and issues like engine boiling. | ||
| View original record | To R. from DA. -2- DA5/G27/6/21 Contd. shaft and also into what can be done in the back axle bevels. No other car did this required performance, as it is of course impossible, with a given H.P. and… | ||
| img077 | Gear ratio, clutch performance, and results from a hill climb test. | ||
| View original record | To R. from DA. -3- R5/G27/6/21 Contd. They agreed that this was probably so, but they pointed out that even with a head wind there appeared to be very little margin. It will perhaps be considered that… | ||
| img078 | Summary of investigations into the results of armoured car tests, detailing weights, gradients and performance. | ||
| View original record | To R. from DA. -4- DA5/G27/6/21 Contd. SUMMARY OF INVESTIGATIONS INTO RESULTS OF ARMOURED CAR TESTS. The weights and gradients given on the actual trials are rather uncertain. The following are… | ||
| img079 | Performance comparison and analysis of gear ratios and engine capabilities for different vehicles. | ||
| View original record | To R. from DA. -5- DA5/G27/6/21 Contd. (a) The Austrain Trials cars with 4500 lbs. and wheels 33.2" dia. would climb 1 in 3 Then M.E.P. = 63.8 lbs. ins. sq. (shewing this performance to be easy) (b)… | ||
| img080 | Trip to London to meet Mr. Day and a request to collect a Delage car for return to Derby. | ||
| View original record | 53 C. from Hs. Hs3/LG28.11.21 RE "DELAGE" CAR. XB I shall be in London on Wednesday 30th.inst. I am coming up with Mr. Maddocks and to meet Mr. Day and then going on to the Indian Office. If it was… | ||
| img081 | The development and testing of an evaporative cooling system for the Phantom I Armoured Car. | ||
| View original record | To R. from Ha/PaV. C. Sg. Wor. C. Rg. By. C. Ir. Hx. C. F1. Hs/PaV.6/KT.12.4.33. -------------------- EVAPORATIVE COOLING SYSTEM ON PHANTOM I ARMOURED CAR. Introduction. Armoured cars operating in hot… | ||
| img082 | Conclusions on a warning lamp scheme and an injector system for evaporatively cooled engines in armoured cars. | ||
| View original record | -2- Ha/PMV.6/KT.12.4.33. A warning lamp scheme was incorporated to indicate when steam was blowing off at the radiator vent. Even with the radiator shutters closed it would only light up on very… | ||
| img083 | Detailed report on a special design radiator and steam condenser cooling system. | ||
| View original record | -3- Hs/Pay.6/KT.12.4.33. Detailed Report. The system is shown diagrammatically in sketch No.1 and R.R. Sch.375. The radiator is of special design, the block being used as a steam condenser. Water… | ||
| img084 | Engine cooling system performance, including pump pressure, road tests, and radiator modifications. | ||
| View original record | -4- and the pump pressure was found to vary exactly as the square of the engine RPM, being 2 lbs/sq.in. at 1000 RPM. or 1 lb. at 700 RPM. The water flow with these washers was only 10 galls/min. The… | ||
| img085 | Stop/restart tests, a non-return valve, and the advantages of an evaporatively cooled system for armoured cars. | ||
| View original record | -5- These tests included a stop and restart test on a gradient of 1 in 5. This was carried out easily and 15 mph. was quickly reached in 1st gear at a point where the gradient was 1 in 5.4 General… | ||
| img086 | Letter regarding performance issues and recommended fixes for an Evaporatively-Cooled Phantom 1 Armoured Car. | ||
| View original record | F2/JL9533. 9th May, 1933. Colonel N. Hudson, D.S.O., The Technical Committee, Mechanical Warfare Board, Royal Arsenal, Woolwich, London, S.E.18. Dear Hudson, EVAPORATIVELY-COOLED PHANTOM 1. ARMOURED… | ||
| img087 | Page 2 of a letter to Colonel N. Hudson discussing car speed and brake performance. | ||
| View original record | Colonel N. Hudson, D.S.O. 9th May. 1933. - 2 - We understand that so far as speed is concerned, the car averaged 33 m.p.h. over a 200 mile run, which seems satisfactory for a vehicle of that weight… | ||
| img088 | Gearbox and differential options for a six-wheeled vehicle for the India War Department. | ||
| View original record | To Wor. from E. c. Sg. Hs. c. BY. F. Da. E22/N15.4.30. Re - Six Wheeled Vehicles for India War Department. I have been talking to Hs. re the above, and gather that he also is of the opinion that a six… | ||
| img089 | Suggestion to transfer the differential to the gearbox for easier locking and unlocking, requiring a double transmission shaft. | ||
| View original record | -2- E22/N15.4.30 contd. In connection with the former, attempts to lock the differential on the driving axles have not been satisfactory owing to the high torque involved. This therefore suggested… | ||