Rolls-Royce Archives
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
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DescriptionDateIdentifier
Design of car bumpers, comparing flat 'half-round' sections to tubular bumpers.4th Jun 1930Box 19 \ 4  Scan005
Return of a car due to issues with its springs, shackles, and 'Staybrite' wheels, and its planned shipment to New York.4th Jun 1930Box 19 \ 4  Scan006
Improvements to the Change Speed Lever to improve smoothness and prevent jingling.4th Jun 1930Box 19 \ 4  Scan007
Requests and suggestions to improve coachwork conditions for the L.H. Phantom II Chassis.4th Jun 1930Box 19 \ 4  Scan008
Rear passenger seating comfort and layout proposals for a 7-passenger vehicle, comparing different line proposals.4th Jun 1930Box 19 \ 4  Scan009
Chassis and body design, focusing on rear spare wheel placement, frame modifications, and comparisons to competitor models.13th Jan 1930Box 19 \ 4  Scan010
Design modifications for seat rake, petrol tank, and fuel system for American market specifications.13th Jan 1930Box 19 \ 4  Scan011
Summary of considerations for fuel tank design and proposed bodywork modifications for a Phantom II model.3rd Jun 1930Box 19 \ 4  Scan012
Blueprint with design suggestions for a car's rear end, including seating ergonomics and spare wheel placement.3rd Jun 1930Box 19 \ 4  Scan013
Design of left-hand chassis floorboards and the placement of a Bosch switch.4th Jun 1930Box 19 \ 4  Scan014
Sending the bonnet and wing-stays for an experimental left-hand Phantom II to Park Wards.5th Jun 1930Box 19 \ 4  Scan015
Bonnet and radiator design, fuel and oil effects on temperature, and the aesthetic issues with louvres and shutters.5th Jun 1930Box 19 \ 4  Scan016
Bonnet and scuttle ventilation, engine protection from dirt, and dashboard insulation.5th Jun 1930Box 19 \ 4  Scan017
Suggestion to insulate the driver's compartment from engine sound and heat by introducing an air space.1st Jun 1930Box 19 \ 4  Scan018
Preference for a half-elliptical bumper over a tubular one, and concerns about the bumper fitted to the 24-EX model.1st Jun 1930Box 19 \ 4  Scan019
Adaptation of a backing light switch to be used as a stop light switch for the L.H. P.2 chassis.6th Jun 1930Box 19 \ 4  Scan020
Design of the L.H. chassis battery support and its universal subframe.6th Jun 1930Box 19 \ 4  Scan021
Clearance of the crankcase breather pipe on an L.H. P.2 chassis with an extra oil cock control rod.7th Jun 1930Box 19 \ 4  Scan022
Progress on the experimental left-hand drive Phantom II, including parts sent to Park Ward and chassis delays.7th Jun 1930Box 19 \ 4  Scan023
Instruction to measure the camber of the front springs on an American Phantom 1, and remove a spring and shock absorber for examination.12th Jun 1930Box 19 \ 4  Scan024
List of outstanding experimental work required on the L.H. Phantom II Chassis.12th Jun 1930Box 19 \ 4  Scan025
List of outstanding experimental work and tests required for the L.H. Phantom II Chassis, with handwritten annotations and status updates.12th Jun 1930Box 19 \ 4  Scan026
Phantom II chassis, American coachwork requirements, and the status of the 2nd experimental car.12th Jun 1930Box 19 \ 4  Scan027
Confirming an agreement to test a left-hand chassis for 10,000 miles using American-spec oils and petrol.12th Jun 1930Box 19 \ 4  Scan028
Telegram received by telephone regarding testing experimental cars with American petrol and oil.12th Jun 1930Box 19 \ 4  Scan029
Telegram received by telephone regarding a recommendation for a lubrication test.12th Jun 1930Box 19 \ 4  Scan030
Arrangements for shipping 'American Car 404 MR' to avoid paying license tax.13th Jun 1930Box 19 \ 4  Scan031
Clutch performance issues, detailing complaints, costs, and statistics for American Phantom I and Phantom cars.13th Jun 1930Box 19 \ 4  Scan032
Technical analysis of clutch performance, wear on different linings, and potential improvements under various driving conditions.13th Jun 1930Box 19 \ 4  Scan033
Page discussing the issue of clutch-jagger after storage and a potential solution using Ferodo.14th Jun 1930Box 19 \ 4  Scan034
Follow-up request for a drawing of an L.H. S.S. instrument board for a body that is a month overdue.14th Jun 1930Box 19 \ 4  Scan035
Request for the bonnet of a 25-EX model to complete the painting of fine lines on its mouldings.14th Jun 1930Box 19 \ 4  Scan036
With a sketch discussing a bumper design using 'U' and semi-elliptic springs to absorb collision impacts.14th Jun 1930Box 19 \ 4  Scan037
Memorandum discussing whether to keep car 404 MR for another two months for further testing and comparisons.16th Jun 1930Box 19 \ 4  Scan038
List of modifications and fittings requested for car 24-EX, including brakes, suspension, and body panels.16th Jun 1930Box 19 \ 4  Scan039
Modifications for car 24-EX, concerning the cross-member, lubrication, clutch, and filters.16th Jun 1930Box 19 \ 4  Scan040
Five improvements for the petrol gauge, which is deemed unsatisfactory.16th Jun 1930Box 19 \ 4  Scan041
List of suggestions and experimental data derivations for preventing fuel spillage and improving a fuel tank system.16th Jun 1930Box 19 \ 4  Scan042
Alternative designs for a tank, its fittings, and venting system.16th Jun 1930Box 19 \ 4  Scan043
Arrangements to road test a car with improvements before its 10,000-mile test in France.17th Jun 1930Box 19 \ 4  Scan044
Return of a car to the U.S.A. and its licensing.18th Jun 1930Box 19 \ 4  Scan045
Telegram requesting an approximate completion and delivery date for chassis 26.EX.10th Jun 1930Box 19 \ 4  Scan046
Telegram recommending testing of 24 FX at Brooklands before a Continental run due to various troubles.19th Jun 1930Box 19 \ 4  Scan047
Revision and approval process for a proposed L.H.S.S. instrument board.19th Jun 1930Box 19 \ 4  Scan048
Faults on vehicle 24-EX while in an unfinished state, categorized by engine, gearbox, and exhaust issues.19th Jun 1930Box 19 \ 4  Scan049
The dangerous position of the petrol filter on a left-hand chassis, highlighting fire risks.20th Jun 1930Box 19 \ 4  Scan050
Request to arrange collection for a second left-hand chassis body.20th Jun 1930Box 19 \ 4  Scan051
Arranging collection of an experimental left-hand drive P.II. No.2 body from Park Ward coachbuilders.20th Jun 1930Box 19 \ 4  Scan052
Notification regarding the upcoming expiration of a motor car licence for car 24-EX.23th Jun 1930Box 19 \ 4  Scan053
Arrangements for the collection of a Park Ward enclosed limousine body for an experimental left-hand drive vehicle.21th Jun 1930Box 19 \ 4  Scan054
Cracks in cylinder heads and proposing the addition of internal ribs as a solution.24th Jun 1930Box 19 \ 4  Scan055
Investigation into the statistics of petrol gauge failures and the subsequent modifications made.24th Jun 1930Box 19 \ 4  Scan056
Improvements and remaining issues with petrol gauges, comparing different designs.24th Jun 1930Box 19 \ 4  Scan057
The advantages and fitting procedures of a 'Nivex' gauge and improvements to address previous issues.24th Jun 1930Box 19 \ 4  Scan058
Concluding page of a typed document making a comparison to products in the United States.24th Jun 1930Box 19 \ 4  Scan059
Arranging a test drive and trips for a Left-Hand Chassis 34-EX.24th Jun 1930Box 19 \ 4  Scan060
Visit to Dunlop and providing recommendations on wheels and tires for the American market.24th Jun 1930Box 19 \ 4  Scan061
Wheel and tire standards, discussing compatibility and standardization between Dunlop and American manufacturers.24th Jun 1930Box 19 \ 4  Scan062
Issues with tyres and comparing American and Dunlop rim and tyre standards.24th Jun 1930Box 19 \ 4  Scan063
Copy of a cable to New York concerning wheel and tire specifications and supply.25th Jun 1930Box 19 \ 4  Scan064
Theoretical and practical considerations of using a wooden deep sill subframe versus a metal one for coachwork.25th Jun 1930Box 19 \ 4  Scan065
Bending and torsion tests on a piece of ash wood to determine its modulus of elasticity.25th Jun 1930Box 19 \ 4  Scan066
Calculation and conclusion regarding the replacement of a sub-frame with a standardised deep sill.25th Jun 1930Box 19 \ 4  Scan067
Successful lapping operations on various engine and chassis components.25th Jun 1930Box 19 \ 4  Scan068
Suggesting it would be useful for America to know the conditions for a satisfactory unlubricated water pump spindle.25th Jun 1930Box 19 \ 4  Scan069
Performance of different materials for valve stem washers.25th Jun 1930Box 19 \ 4  Scan070
The Brooklands tests of the Phantom II cooling system from June 1930.25th Jun 1930Box 19 \ 4  Scan071
Engine cooling tests, focusing on ventilation and the effectiveness of front versus rear bonnet shutters.30th Jun 1930Box 19 \ 4  Scan072
Cooling system performance in hot climates, focusing on ventilated bonnets, radiator design, and testing on an 18-EX car.25th Jun 1930Box 19 \ 4  Scan073
Car performance testing, detailing issues with high oil temperatures, petrol supply problems and recorded lap speeds.25th Jun 1930Box 19 \ 4  Scan074
Analysis of the inferior performance of car 18-EX, attributing slow speed to various mechanical and design factors.25th Jun 1930Box 19 \ 4  Scan075
Cooling system tests, including fan belt tension, water circulation, and the American Phantom II.25th Jun 1930Box 19 \ 4  Scan076
Summary of improvements for the Phantom II regarding bonnet ventilation, fan efficiency, and radiator design.1st Aug 1930Box 19 \ 4  Scan077
Car bonnet design for improved cooling at high speeds on Continental and English roads.25th Jun 1930Box 19 \ 4  Scan078
Graph plotting the temperature (°C) of top water, oil, and bottom water against miles run.2nd Jul 1930Box 19 \ 4  Scan079
Mostly blank page with a purple ink date stamp in the bottom right corner.2nd Jul 1930Box 19 \ 4  Scan080
Graph of overheating test results for a Standard PII Cabriolet with different ventilation modifications.2nd Jul 1930Box 19 \ 4  Scan081
Graph plotting top and bottom water temperatures against various cooling configurations at a constant speed.2nd Jul 1930Box 19 \ 4  Scan082
Graph plotting oil and water temperature against miles run under varying speed and ventilation conditions.2nd Jul 1930Box 19 \ 4  Scan083
Bar chart comparing critical ATS temperatures for spring-tensioned versus positively tensioned fan belts.2nd Jul 1930Box 19 \ 4  Scan084
Graph comparing the top water temperature of two experimental engine configurations (18 E.X. and 19 E.X.) over distance.2nd Jul 1930Box 19 \ 4  Scan085
Blueprint showing a modification to the front undershield to improve the cooling system.2nd Jul 1930Box 19 \ 4  Scan086
Largely blank or faded document page with a date stamp.2nd Jul 1930Box 19 \ 4  Scan087
Modifications to the subframe of car 25-EX.25th Jun 1930Box 19 \ 4  Scan088
Sticking of the steering column's ball thrust cover and proposing alternative solutions.26th Jun 1930Box 19 \ 4  Scan089
Standardisation and design of valve spindle packings.27th Jun 1930Box 19 \ 4  Scan090
Comparing the American and English Phantom I models, focusing on springing and cooling performance during a trip in America.1st Jul 1930Box 19 \ 4  Scan091
From 'Sg' to 'Hs' concerning test results at Brooklands for the English and American Phantom II models.1st Jul 1930Box 19 \ 4  Scan092
Requesting a status update on items 1-7 concerning the L.H.Phantom II Chassis.1st Jul 1930Box 19 \ 4  Scan093
The first left-hand drive chassis (24-EX & 25-EX) sent to France, detailing 13 subsequent alterations.1st Jul 1930Box 19 \ 4  Scan094
List of modifications and updates for specific car models, including notes on cars 24-EX and 25-EX.1st Jul 1930Box 19 \ 4  Scan095
Vehicle testing, detailing issues like resonant boom and wing movement, and planning for body fitting and design decisions on a Phantom II model.2nd Jul 1930Box 19 \ 4  Scan096
Logistics and method for shipping a Second Experimental L.H. Car to America.2nd Jul 1930Box 19 \ 4  Scan097
Delay in providing blueprints for the L.H.Phantom II Chassis pending design finalization and vehicle testing.22th Jul 1930Box 19 \ 4  Scan098
Performance test notes for vehicle 24 EX at Brooklands.2nd Jul 1930Box 19 \ 4  Scan099
Bumpers, clutch, and road springs for a left-hand chassis.2nd Jul 1930Box 19 \ 4  Scan100
Report page on modifications to gear shift and shutters, receipt of sample horns from Lucas, and use of American oils on car 24-EX.2nd Jul 1930Box 19 \ 4  Scan101
Evaluation of an American tool for detaching top valve spring washers.3rd Jul 1930Box 19 \ 4  Scan102
American bumpers, collision tests, and manufacturing for the L.H.Phantom II Chassis.1st Jul 1930Box 19 \ 4  Scan103
Brooklands tests to address car over-heating issues by modifying the fan, radiator, and undershield.3rd Jul 1930Box 19 \ 4  Scan104


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