Rolls-Royce Archives
| Identifier | Entry | ||
| img001 | Policy revision for the Universal Gearbox due to a decision about Phantom III cars. | ||
| View original record | Handwritten: 1153 also -1260 HPS. from Rm. By. Ua. UNIVERSAL GEARBOX. Further to our conversation with you, owing to the decision to do no major alterations on the P.III, the policy with regard to the… | ||
| img002 | Piston modifications, including increasing skirt length and using spring pressure to reduce engine noise. | ||
| View original record | To EH. from R. Copy to OJ. " " 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 | Rushed inspection report on a Fiat car, model X4133. | ||
| View original record | To C.J. from R. c. to B.J. c. to Hop. c. to C.H. RECEIVED MAY 25 1922 MISC . OP - FIAT + (R) SWALLOW PEREGRINE I R3/4123.5.22. RE. 10.J. FIAT CAR. RUSHED INSPECTION. X4133 (1) The locked ignition does… | ||
| img004 | Typed note outlining shortcomings related to springing, carburation, and chassis size. | ||
| View original record | (2) 5" shorter than 'Peregrine', hence springing can never be made really good. (12) Carburation would require good petrol or water temperature carefully watching - there is only water heat to… | ||
| img005 | Goshawk I chassis, comparing its flexible engine suspension to other models, and urging for consistent compression ratios. | ||
| View original record | R.R. 235a 100 T) (S.H 798. 10-12-20) G. 2948 TO HS. FROM R. ~~re. 10 H.P. Car.~~ Hs ORIGINAL [stamp] 29 XII 1922 [stamp] RECEIVED [stamp] X3481 [handwritten] 3535 [handwritten] RB/M27.12.22. GOSHAWK… | ||
| img006 | Query regarding payment for petrol and a new inner tube for a Hawk-Northcliffe chassis spare wheel. | ||
| View original record | R.R. 235a (100 T) (S.H 798 10-12-20) G. 2048 ORIGINAL TO HS. FROM E. E3./116.12.22 R H-N. RE. PETROL BOUGHT AT CHICHESTER. Would you kindly confirm that in addition to the cost of attention to the… | ||
| img007 | Solutions to the warping of the Goshawk II clutch plate. | ||
| View original record | To HS. from R. Copy to C.G. " " MOR. " " BY. " " DA. ORIGINAL 4 R2/G7/9/21. RE "GOSHAWK II" CLUTCH. X3407 X4244 X.3409 The warping of the plate is quite in accordance with what we anticipated, but we… | ||
| img008 | Directive on the progress of experimental work, halting work on 'Vulture' or 'Buzzard' to prioritize parts for a finished engine or chassis. | ||
| View original record | To HS. from R. Copy to CJ " " WOR X 272 X 3786 X 35249 ORIGINAL R14/G25/4/21. 4 RE PROGRESS OF EXPERIMENTAL WORK. (HS1/LG8/4/21) Unless we are definitely waiting for work in the Experimental Dept. no… | ||
| img009 | With diagrams showing six different designs for a plate, featuring variations in materials, slots, and corrugated centers. | ||
| 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 agreeing to contribute to a presentation for Mr. Basil Johnson. | ||
| View original record | WICKESFIELD, WEST WITTERING, CHICHESTER. 14th Dec 1928 Dear Mr. De Looze. Thank you for your memo D1/DL 12.12.28 concerning presentation to Mr. Basil Johnson. I should certainly like to contribute as… | ||
| img011 | Feedback on the design of a battery lead and terminal, with a suggested modification to aid soldering. | ||
| View original record | To EFC. from E. Copy to Cj. " " BN. " " BY. " " DA. " " EH. ORIGINAL x.1928 x604 x.664 RE LEADS AND TERMINALS FOR 40/50 H.P. STARTING AND LIGHTING BATTERY. Referring to the sample terminal and lead… | ||
| img012 | Purpose and potential issues of a small vent hole in an R.R.C.H. carburettor. | ||
| View original record | To E.H. from R. c. to J. c. to By. ORIGINAL 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 put in to prevent… | ||
| img013 | Reliability and testing of Watford magnetos based on a report from the Air Board. | ||
| View original record | To EH.) from R. Oy.) c. to J. ORIGINAL X.2375 Re Watford Magnetos. X.2753 I understand from the Works that there are doubts about the reliability of the Watford magneto. We have received a letter from… | ||
| img014 | Performance of engines in aircraft, focusing on power, weight, and propeller compatibility. | ||
| View original record | To EH. from R. c/c to BJ. ORIGINAL RECEIVED 30 JUIL 1917 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, climbing capabilities, and comparisons with German equipment. | ||
| View original record | 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 the horse power… | ||
| img016 | From 'R.' complaining about the unsuitably heavy Maythorn limousine body on a 20HP chassis. | ||
| View original record | TO HS. FROM R. R4/M1.9.25. Copy to --GS. 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… | ||
| img017 | Poor state of a 'top heavy' car body and recommending its modification or disposal. | ||
| View original record | R.R. 295A / 100 T: (S. H. 159. 11-5-20) G. 2820 TO HS. FROM R. Copy to [REDACTED] re. 20.HP. - 7.G.11. (TOP HEAVY SPECIMEN.) X4219 I believe that it is disastrous to keep in use the very top heavy… | ||
| img018 | Weekly comparison of 20 HP chassis orders for the financial years 1922-1923 and 1923-1924. | ||
| View original record | 5 Tr5/DN24124. 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 between the 1922-1923 and 1923-1924 financial years. | ||
| View original record | Tr3/DH23124. 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 | Typed summary of establishment charges per chassis from 1921 to 1923. | ||
| View original record | ESTABLISHMENT CHARGES. 27/7/23 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 | Costings sheet for accessories for a 'Goshawk' open body vehicle, showing two price columns. | ||
| View original record | Goshawk. 17.9.22 ① ② Spare tyre 32x4½ 9. 1. 3 12. 19. - Lucas lamps 13. 0. 0 20. -. - A.T. Speedometer 7. 10. 0 9. 10. - Smiths' Clock 4. 10. 0 5. 10. - Horn 2. 7. 6 3. 10. - Mascot 2. 15. 0 3. 10. -… | ||
| img022 | Outlining the assumptions used to calculate 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 ergonomics and safety of pedal placement, considering drivers of different heights and emergency situations. | ||
| View original record | ROLLS-ROYCE LIMITED, 14-15, CONDUIT STREET, LONDON, W. DEPARTMENTAL MEMO. Subject: Pedals. First Entry: Name of Person addressed: Mr Johnson. DATE: 23-9-12 With reference to the attached. Second… | ||
| img024 | Noting marks on the dashboard caused by drivers' toes. | ||
| View original record | R.R. 47 (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 company's unfavorable cash position due to chassis orders, production delays, and slow government payments. | ||
| 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 | Summary of chassis deliveries, sales, and orders for the period of May 19 to July 14, 1925. | ||
| View original record | Mr Claude Johnson F.R. JULY 21 1925 RECEIVED ROLLS ROYCE OF AMERICA INC Deliveries of Chassis to July 14, 1925 and Weekly Sales - May 19, 1925 to July 14, 1925 American Chassis Delivered To Test To… | ||
| img027 | Weekly comparison of car orders for 1922 and 1923, broken down by model. | ||
| 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 August......... 6 3 9 12th… | ||
| img028 | Price comparison of the Goshawk model against works cost and a schedule of competitive cars. | ||
| 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 PRICES OF COMPETITIVE… | ||
| img029 | Comparative table of specifications and prices for the 40/50 model against its competitors. | ||
| 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 | Price comparison document for the Goshawk model against competitor vehicles. | ||
| View original record | SELLING PRICE OF GOSHAWK. Match Wotton Cost with Corres N/M Price Nett. (crossed out) 40/50 h.p. Rolls-Royce Chassis. £1250. £1850. (Present cost £970) Goshawk. £700. £1038. SCHEDULE PRICES OF… | ||
| img031 | Comparison table of the 40/50 model against its competitors. | ||
| View original record | C/C19.9.22. 40/50 R-R COMPETITORS. -------- Make. Chassis Price. Bore and Stroke. No. of cyl-inders. Cubic Capacity. Chassis price per Cubic Inch. Treasury Rating. Price per h.p. Treasury rating.… | ||
| img032 | Engine heat issues in the front footwells and proposing solutions like insulated foot boxes and isolating the engine chamber. | ||
| View original record | Etablissements Poulard Aine & Poulard Jeune France Mont-Saint-Michel COMPAGNIE HOTELIERE DES CENTRES DE TOURISME AUTOMOBILE 1 F.H.R. People will have high side doors to front seats. If they do not… | ||
| img033 | Instructions for side door height, floor matting, and footboards for each chassis. | ||
| View original record | height of side doors and nature of matting & front seats in connection with each chassis. I think these might be printed on the floor boards instructions as to height of side doors & recommending… | ||
| img034 | The dispatch of two Front Wheel Nail Catchers supplied by Messrs. 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 | Present chassis design and the number of shutters on car bonnets. | ||
| View original record | R.R. 647 (100 H.) (U.U. 839-1-3-14.) B. & H. 1924. ROLLS-ROYCE LIMITED, 14 & 15, CONDUIT STREET, LONDON, W. TELEPHONES: 1654, 1655, 1656 (GERRARD) TELEGRAMS: "ROLHEAD," REG., LONDON. Names and… | ||
| img036 | Performance of wire wheels versus wooden wheels, citing articles, tests, and customer feedback. | ||
| View original record | Write & Cover when E.F. confirmed Mr. Johnson Top right annotations: Mr Barness / Mr Aller Tech: J 24/XI/11 NOV 9th-meeting Stamp: E 29 XI 11 No doubt you have seen Campbell's article in the 'Car'… | ||
| img037 | Wire wheels, customer queries, and considerations for cars exported 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 | Memo with a diagram proposing a modification for scuttle dash isolation on the 40/50 model. | ||
| View original record | To Hs. from Ev. Copy to HS. SECRET. Re. 40/50 Scuttle Dash Isolation. 44613 We understand that you consider that, on some cars (40/50's), where the Scuttle and dash are totally separated, following on… | ||
| img039 | Query regarding deeper rubber washers between the dash and scuttle for the 40/50 & EACII/III chassis. | ||
| 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 Hollinwood regarding fittings for front-wheel Nail Catchers to be trialled. | ||
| View original record | V.424 HOLLINWOOD. LANCASHIRE. 9th February, 1922. Messrs. Rolls-Royce, Ltd., D E R B Y. For the attention of Mr. Hives. Dear Sir, Referring to my recent visit to your Works, I now have pleasure in… | ||
| img041 | Letter with hand-drawn sketches concerning the correct fitment of carburettor gaskets to prevent vibration issues. | ||
| View original record | HOLLINWOOD LANCASHIRE James Taylor (Rochdale) Ltd. ...for the attention of Mr. Hives. Dear Sirs, Regarding sundry spares which I have ordered, and that the carburettors which I have ordered have not… | ||
| img042 | Short handwritten note to Mr. Johnson regarding a letter from Mr. Bolton. | ||
| View original record | Mr. Johnson, I am sorry I have not sent a copy of the letter in question here as it was evidently written by Mr. Bolton. to day Derby Please let me see it. J [Printed Vertically]: R.R. 208 (10/10)… | ||
| img043 | Departmental memo concerning the ventilation of a 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 | Inquiry to M.S. Napier regarding a patented ventilation system for front seats seen at the Olympia Show. | ||
| View original record | Copy. BB6/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 clarifying they only supplied the chassis for a car at the Olympia Show, suggesting the bodywork was by Mulliner. | ||
| View original record | Copy for Claud Johnson Esq., Messrs. Rolls-Royce, Ltd. 14 & 15, Conduit Street, W. AP. File Let me see our letter to them. 11th Jan. 1912. Messrs. Rolls-Royce, Ltd. D E R B Y. TBE6/L9112. Dear Sirs,… | ||
| img046 | Departmental memo discussing a report from the Bombay depot about the suitability of wooden versus wire road wheels. | ||
| View original record | ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person addressed. DATE. Re Road Wheels. X424… | ||
| img047 | Letter from coachbuilder Mulliner regarding a patented dashboard arrangement separating the dashboard from the chassis. | ||
| View original record | CUSTOMERS' CARS ARE ONLY DRIVEN BY OUR STAFF AT CUSTOMERS' OWN RISK AND RESPONSIBILITY. MULLINER, LONG ACRE, LONDON, AND NORTHAMPTON, LTD. TELEGRAMS: MULLONAC, LONDON. TELEPHONE: 8949 GERRARD. 132 TO… | ||
| img048 | Proposal to use a flexible strip of leather to connect the bodywork to the dashboard to mitigate movement from the chassis. | ||
| 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 Arthur Macdonald's patent. | ||
| View original record | TRR2/L6212. February 6th. 1912. Messrs Mulliner, 73-65 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 requesting patent information for a body and chassis dash arrangement to avoid infringement. | ||
| View original record | BB3/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. CUSTOMERS CARS ARE ONLY DRIVEN BY OUR STAFF AT CUSTOMERS OWN RISK AND RESPONSIBILITY TELEPHONE { GERRARD 8926, 8928, 8927, 8929. TELEGRAMS… | ||
| img052 | Request regarding cast aluminium ventilators for the scuttle of London Edinburgh type cars. | ||
| 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 drwg F.2636, F.2637, F.2638, F.2639 shewing cast aluminium ventilators &… | ||
| img053 | Departmental memo regarding an attached memorandum about Lord Dunraven's car, number 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 positioning of dash ventilators to prevent warm air entry. | ||
| View original record | R.R. 370 (10 M) (L. L. 201. 20.6.12) G. 2067. ROLLS-ROYCE LIMITED. INSTRUCTIONS. 6290 F 7.11.12191 To: Mr Haden Order No. Customer's No. Re: N5/B7/112 Dash Ventilators Lowered & Sound- [Struck… | ||
| img055 | Rubbing or drawing of a company nameplate. | ||
| View original record | [Logo] R ROLLS-ROYCE LTD LONDON & DERBY No 51LB 51 L.B. | ||
| img056 | Enquiry from a collector in Australia about a maker's plate found on a derelict railway vehicle in Jordan. | ||
| View original record | [Handwritten note: FML in a circle] [Handwritten note: m/w] 47. Knightsbridge Road. Leabrook. South Australia - 5068. Feb 8. 1971 Messrs Rolls Royce Ltd. Archives Dept. Dear Sir The distressing news… | ||
| img057 | Inquiry requesting information about a vehicle plate, specifically its 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 the frame to accommodate the battery on a Standard 40/50 armoured car. | ||
| View original record | To BY. from Da. c. to CJ. c. to Wor. c. to Hs. Dal/M23.6.22. 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… | ||
| img059 | Negative impacts of using larger diameter wheels on armoured car chassis. | ||
| View original record | To D.H. from R. Copy to C.F. " " HW " " B.V. " " HS. " " T.N. " " R.R. of America Inc. (For the attention of C.T.) Handwritten notes: Ref 6 8-10-20 R.V. AND LARGER WHEELS - HIGH STRESSES AT HIGH… | ||
| img060 | Confirmation of a telegram to Mr Basil Johnson regarding a government order and manufacturing strategy. | ||
| View original record | CONFIRMATION OF TELEGRAM TELEPHONED TO CHICHESTER. ORIGINAL RECEIVED To WOR. from R) ROYCAR DERBY+ Copy to DA. " " HS. " " BY. WORMALD COPY OF MESSAGE TELEPHONED TO MR BASIL JOHNSON RE GOVERNMENT… | ||
| img061 | Design and fitting of a hand barring gear and pumps for armoured cars. | ||
| View original record | Ref E1 / 68-10-20 (MISC R) R4/G2/10/20. 4 HAND BARRING GEAR. 25 OCT 1920 X.4195 RE ARMOURED CARS. Mr. Day was here yesterday, and as we found great trouble in getting a satisfactory barring… | ||
| img062 | With a sketch detailing the dashboard control mechanism for a 40/50 HP tyre pump on an armoured car. | ||
| View original record | To - from E. REF G8-10-20 ORIGINAL E7/G21/10/20. ARMOURED CAR TYRE PUMP DASH CONTROL E.F.C. X 4197 RE 40/50 H.P. TYRE PUMP MOUNTING. We send you herewith drawing No. Lec.1294 shewing the above. The… | ||
| img063 | Alternative lubrication method for a tyre pump on a 40/50 HP chassis. | ||
| View original record | To DA: from E. Copy to CJ. " " BN. " " BY. ORIGINAL Handwritten: Ref E1/G26/10/20 Handwritten: 9/21 Col AC ARMOURER CAR (struck through) EFC. X 4197 RE TYRE PUMP - 40/50 H.P. CHASSIS. Referring… | ||
| img064 | Critique of War Office proposals for fitting an Eagle engine into tanks, highlighting design flaws and suggesting alternatives. | ||
| View original record | R CRITICISMS UNSOUND PROPOSALS FROM Ref & 8-10-20 4 To Bd.} from R. THE WO ORIGINAL RG/G29/10/20. Copy to C.J. RECEIVED 11 NOV 1920 HS RE MODIFICATIONS TO "EAGLE" ENGINE FOR TANKS. X.4205.… | ||
| img065 | Critique of design choices for the Cardan shaft, flywheel, starter gear, governor, and throttle valves. | ||
| View original record | To BJ. A WOR. from R. -2- RG/029/10/20 Contd. the Cardan 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 and seeking direction on whether to proceed as instructed, await further designs, or prepare modifications. | ||
| View original record | -9- To B.J. & WOR. from R. RB/020/10/20 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… | ||
| img067 | Letter proposing a new back axle for armoured cars to address performance issues like climbing, cooling, and clutch slipping. | ||
| View original record | Copies sent to:- CJ. Major Heron & Col Hutchinson DA7/G28621. 28th June, 1921. 1320 (6 lines) Col. Robinson, India Office, Great George Street, LONDON. Dear Sir, RE ARMOURED CARS. We have discussed… | ||
| img068 | Letter to Col. Robinson discussing vehicle performance, modifications to brakes, axles, and clutches for heavy loads. | ||
| 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 | Technical analysis of vehicle climbing capabilities, discussing maximum weight on gradients and M.E.P. figures. | ||
| View original record | Col.Robinson. -3- DAT/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 | Design and supply of a new axle for armoured cars for the India Office. | ||
| View original record | To R. from DA. Copy to CJ. BY. DA6/G19/7/21. 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… | ||
| img071 | The design and cost estimation for a double reduction gear rear axle for armoured cars. | ||
| View original record | To BY. from DA. Copy to RD. 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 urgency of an estimate for axles to be fitted to government chassis destined for 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 | Testing limitations of an armoured car, proposing tests with a reduced load due to issues with the current axle. | ||
| View original record | To BJ. from DA. DAL/G29/8/21. 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… | ||
| img074 | Modification of a drawing for the rear lamp position 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 THR1/CB29/4/21, it appears to be necessary to modify the drawing shewing the position of the lamps, in… | ||
| img075 | Performance issues of armoured cars for India and the War Office, specifically their inability to climb steep gradients with heavy loads, and proposed alterations. | ||
| View original record | To R. from DA. Copy to BY. Mr. Maddocks. DA5/G27/6/21. 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… | ||
| img076 | Performance comparison report against a Crossley car, discussing gear ratios, sand tests, and radiator boiling issues. | ||
| 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 | Vehicle performance issues with the gear ratio, clutch overheating, and hill climbing, requesting suggestions for improvements. | ||
| 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 calculations. | ||
| 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 | Technical analysis of vehicle performance, comparing gear ratios, load-carrying capacity, and engine specifications against a Crossley lorry. | ||
| 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 for meetings and a request to collect a Delage car to drive back to Derby. | ||
| View original record | C. from Hs. RE "DELAGE" CAR. 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 possible for you to get… | ||
| img081 | The evaporative cooling system for the Phantom I armoured car. | ||
| View original record | To R. from Hs/Pav. C. Sg. Wor. C. Rg. By. C. Ir. Mx. C. Fl. EVAPORATIVE COOLING SYSTEM ON PHANTOM I ARMOURED CAR. Introduction. Armoured cars operating in hot countries with ordinary water cooled… | ||
| img082 | Conclusions on a radiator warning lamp and a hotwell condensate injector system for evaporatively cooled engines. | ||
| View original record | -2- 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 severe gradients or at… | ||
| img083 | Design and testing of a Phantom I evaporative cooling system and its special radiator. | ||
| View original record | -3- Ha/Pav.6/KT.12.4.33. Detailed Report. The system is shown diagrammatically in sketch No.1 and A.R. Sch.375. The radiator is of special design, the block being used as a steam condenser. Water… | ||
| img084 | Road and system tests of an engine's cooling system, injector performance, and radiator suitability. | ||
| View original record | -4- and the pump pressure was found to vary exactly as the square of the engine R.P.M. being 2 lbs/sq.in. at 1000 R.P.M. or 1 lb. at 700 R.P.M. The water flow with these washers was only 10 galls/min.… | ||
| img085 | Stop and 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 to Colonel N. Hudson discussing an internal report and performance issues of an evaporatively-cooled Phantom I armoured car. | ||
| View original record | F2/J19532. 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.… | ||
| img087 | Page 2 of a letter to Colonel N. Hudson regarding a car's performance over a 200-mile run. | ||
| View original record | Colonel N. Hudson, D.S.O. - 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 fitted with two… | ||
| img088 | Gearbox and differential requirements for six-wheeled vehicles for the India War Department. | ||
| View original record | To Wor. from E. c. Sg. Hs. c. BY. F. Da. 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 wheeled… | ||
| img089 | Suggestion to move the differential to the gearbox to improve locking functionality, 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… | ||