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
Calculation for predicted speed and a note indicating it is a preliminary report.30th Jul 1934Box 155 \ 1  scan0153
Track test report for Hall's Car (B-35-AE), detailing speed and performance under various configurations.30th Jul 1934Box 155 \ 1  scan0154
Summary of development work on engine cam forms and followers, noting the performance gains were not worth the risk of valve spring failure.30th Jul 1934Box 155 \ 1  scan0155
Performance graph plotting RPM against MPH for different gears and two different tyre sizes.8th Aug 1934Box 155 \ 1  scan0156
Prepaid telegram enquiring about the availability of the track for tests.8th Aug 1934Box 155 \ 1  scan0157
Post office telegram confirming track availability from Bradley to Robotham Boycar.8th Aug 1934Box 155 \ 1  scan0158
Shock absorber tests at Brooklands comparing Hartford dampers on a Phantom and Bentley.9th Aug 1934Box 155 \ 1  scan0159
Telegram requesting track availability for tests at Weybridge.3rd Sep 1934Box 155 \ 1  scan0160
Test report comparing the lap and half-mile speeds of a 22-EX prototype and a Cadillac at Brooklands race track.10th Aug 1934Box 155 \ 1  scan0161
Test results for car 2-B-4 at Brooklands after fitting new Aerolite pistons.12th Sep 1934Box 155 \ 1  scan0162
Comparative speed test report for cars 18-G-IV and 20-G-IV at Brooklands track.19th Sep 1934Box 155 \ 1  scan0163
The availability of the Weybridge track.12th Oct 1934Box 155 \ 1  scan0164
Report of a test on a Bentley Small Bore Induction Pipe (EX.14528) to determine its effect on the car's maximum speed.24th Oct 1934Box 155 \ 1  scan0165
Further tests on Bentley radiators at Brooklands.1st Nov 1934Box 155 \ 1  scan0166
Summary of cooling tests and proposals for radiator matrix and fan configurations on a Bentley car.24th Oct 1934Box 155 \ 1  scan0167
Performance graph comparing two Bentley Marston Mark V radiator matrices of varying depths (70mm & 58mm).24th Oct 1934Box 155 \ 1  scan0168
Graph comparing the performance of two similar 58mm Marston Mark V radiator matrices for a Bentley.24th Oct 1934Box 155 \ 1  scan0169
Graph comparing carburettor air intake temperatures for Bentley radiators with shutter control versus thermostatic by-pass control.24th Oct 1934Box 155 \ 1  scan0170
Graph determining the permissible area reduction for a Bentley Marston Mark V radiator matrix to achieve equal cooling to a standard Mark III matrix.24th Oct 1934Box 155 \ 1  scan0171
Graph comparing cooling performance and speeds obtained with three different types of Bentley fans.24th Oct 1934Box 155 \ 1  scan0172
Speed tests of different Bentley models at Brooklands in 1934 and 1935.25th Apr 1935Box 155 \ 1  scan0173
Lap speeds and performance data for a car with a high compression head and Aerolite pistons, tested at Brooklands.1st May 1935Box 155 \ 1  scan0174
Performance test report from Brooklands detailing lap speeds, flying half mile, and damper readings.15th May 1935Box 155 \ 1  scan0175
The performance and testing of a car fitted with a High Compression Head on Brooklands Track.15th May 1935Box 155 \ 1  scan0176
Letter to Brooklands Automobile Racing Club requesting track availability for testing.4th Jul 1935Box 155 \ 1  scan0177
Letter to the Clerk of the Course at Brooklands Automobile Racing Club requesting track admission.8th Jul 1935Box 155 \ 1  scan0178
Confirming a book of tickets for use at Brooklands is being obtained.9th Jul 1935Box 155 \ 1  scan0179
Telex message instructing a representative to telephone the Experimental Department immediately upon receipt.10th Jul 1935Box 155 \ 1  scan0180
Short note confirming the enclosure of a book of Brooklands Tickets.11th Jul 1935Box 155 \ 1  scan0181
Letter to the Brooklands Automobile Racing Club enclosing a track ticket.11th Jul 1935Box 155 \ 1  scan0182
Visit to Brooklands to test a Spectre 2 against a Buick, detailing lap times and a subsequent engine failure.19th Jul 1935Box 155 \ 1  scan0183
Test report on a new type Bentley oil filler and breather, tested on car B-23-AE at Brooklands.19th Jul 1935Box 155 \ 1  scan0184
Letter to the Clerk of the Course at Brooklands requesting to test a car on the track.7th Aug 1935Box 155 \ 1  scan0185
Performance test results from Brooklands for E.R. Hall's Car (B-35-AE) with various settings for mixture, ignition, and aerodynamics.9th Aug 1935Box 155 \ 1  scan0186
Lap speeds and tyre configurations during track testing.9th Aug 1935Box 155 \ 1  scan0187
Performance tests conducted at Brooklands, comparing various car configurations.9th Aug 1935Box 155 \ 1  scan0188
Performance test results for the Original Big Bore Unit in a Bentley I.21th Sep 1935Box 155 \ 1  scan0189
Telegram regarding the closure of the experimental Hancock track for repairs.23th Sep 1935Box 155 \ 1  scan0190
Letter to the Brooklands Automobile Racing Club regarding track availability for tests.25th Sep 1935Box 155 \ 1  scan0191
Performance test results and carburettor settings for vehicle 18-G-IV at Brooklands.9th Nov 1935Box 155 \ 1  scan0192
Performance timings for a Spectre II and a Buick at the Brooklands circuit.18th Jul 1935Box 155 \ 1  scan0193
Letter to the Clerk of the Course at Brooklands Motor Course enclosing a track ticket for an aerodynamic car.26th Mar 1936Box 155 \ 1  scan0194
Performance test results for Chassis No. 22 G.V. at Brooklands, detailing lap times, acceleration data, and engine notes under windy conditions.31th Mar 1936Box 155 \ 1  scan0195
Radiator tests at Brooklands for Chassis No. 22 G V.31th Mar 1936Box 155 \ 1  scan0196
Radiator performance tests on Chassis No. 22 G V, recording water temperatures under various conditions.31th May 1936Box 155 \ 1  scan0197
Radiator tests conducted at Brooklands for Chassis No. 22 G.V., comparing temperatures with and without a spring fitted.31th Mar 1936Box 155 \ 1  scan0198
Radiator temperature test results for Chassis No. 22-C-V at Brooklands.31th Mar 1936Box 155 \ 1  scan0199
Radiator tests with a spring-fitted thermostat, comparing performance with an empty versus nearly full header tank.31th Mar 1936Box 155 \ 1  scan0200
Engine and radiator temperature tests at 30 m.p.h. under varying conditions.31th Mar 1936Box 155 \ 1  scan0201
Engine cooling performance, mentioning local boiling and continued testing with a spring removed.31th Mar 1936Box 155 \ 1  scan0202
Engine performance with observations on temperature and local boiling.2nd Apr 1936Box 155 \ 1  scan0203
Performance test results for cars 6-B-IV and 3-B-IV at Brooklands, detailing times and speeds with different engine configurations.2nd Apr 1936Box 155 \ 1  scan0204
The performance and issues of car 32-EX during a trip to Brooklands.2nd Apr 1936Box 155 \ 1  scan0205
Slow running tests comparing engine vibrations with different carburetter and induction pipe setups.6th Apr 1936Box 155 \ 1  scan0206
Page detailing acceleration test results and conclusions for different carburetor and induction pipe combinations.6th Apr 1936Box 155 \ 1  scan0207
List of engine settings comparing different ignition timings, RPMs, pipe sizes, and carburettor types.6th Apr 1936Box 155 \ 1  scan0208
Tests carried out on the Phantom III to resolve petrol starvation at high speeds.6th Apr 1936Box 155 \ 1  scan0209
Petrol starvation tests for a Phantom III (36-KX) with a Stromberg carburettor at Brooklands.6th Apr 1936Box 155 \ 1  scan0210
Page 2 of a test report detailing carburettor performance, speed trials, and fuel/oil consumption.6th Apr 1936Box 155 \ 1  scan0211
Car performance issues including top gear, clutch, and crankcase breather faults.6th Apr 1936Box 155 \ 1  scan0212
Expressing disappointment with the incomplete testing of large and small carburetters at Brooklands.6th Apr 1936Box 155 \ 1  scan0213
Test run of the Dubonnet car at Brooklands, focusing on its layout, road holding, and the effects of streamlining.6th Apr 1936Box 155 \ 1  scan0214
Benefits of vehicle streamlining and proposing wind tunnel work.6th Apr 1936Box 155 \ 1  scan0215
Table comparing the horsepower required and acceleration improvement of a Bentley versus a streamlined Dubonnet car.6th Apr 1936Box 155 \ 1  scan0216
Visit to Brooklands detailing fuel consumption tests and lap times.1st May 1936Box 155 \ 1  scan0217
Performance test results with large carburetters and induction pipe, noting lap times and speeds.21th May 1936Box 155 \ 1  scan0218
Telegram from Robotham inquiring about track availability for tests at Weybridge the following week.21th May 1936Box 155 \ 1  scan0219
Telegram confirming the availability of a track for specific time slots.12th May 1936Box 155 \ 1  scan0220
Request to arrange for a radiator matrix unit change on a Phantom III car, 33-EX, at Cricklewood.22th May 1936Box 155 \ 1  scan0221
Performance and consumption test report from a visit to Brooklands, comparing small and large carburetters.28th May 1936Box 155 \ 1  scan0222
Report comparing vehicle performance with small and large carburetters and induction pipes, including lap times and speeds.28th May 1936Box 155 \ 1  scan0223
Request to modify carburetter parts for car 33-EX before it goes to Brooklands.22th May 1936Box 155 \ 1  scan0224
Note confirming an appointment for a Phantom III, chassis 33-EX, to have its radiator changed.25th May 1936Box 155 \ 1  scan0225
Visit to Brooklands for comparison tests between small and large carburettors and induction pipes.28th May 1936Box 155 \ 1  scan0226
Performance test results comparing small and large carburetters and induction pipes.28th May 1936Box 155 \ 1  scan0227
Cooling system performance and overheating issues of the Phantom III in comparison to the Phantom II.10th Jun 1936Box 155 \ 1  scan0228
Radiator, fan, and bonnet cooling tests conducted at Brooklands.10th Jun 1936Box 155 \ 1  scan0229
Summary and conclusion of cooling tests for the Phantom III car, proposing improvements such as a new radiator matrix, louvred bonnets, and a flexible fan.10th Jun 1936Box 155 \ 1  scan0230
Remedying cooling differences at low speeds between Phantom models by using a more effective fan.10th Jun 1936Box 155 \ 1  scan0231
Summary of radiator test results conducted at Brooklands.19th May 1931Box 155 \ 1  scan0232
Table of critical air temperature figures for a Phantom II car under different speed conditions.19th May 1931Box 155 \ 1  scan0233
Comparative graph of Brake Horsepower vs. road speed for Phantom I and Phantom II engines.16th Jun 1936Box 155 \ 1  scan0234
Telegram inquiring about the availability of a track for Thursday or Friday of the current week.16th Jun 1936Box 155 \ 1  scan0235
The cooling tests of a Cadillac V-16 car, comparing its performance to the Phantom III.24th Jun 1936Box 155 \ 1  scan0236
Comparison of cooling fan performance between a Phantom III and a Cadillac, with a proposal for improving the radiator cooling.24th Jun 1936Box 155 \ 1  scan0237
Results of radiator tests on a Cadillac car at Brooklands.24th Jun 1936Box 155 \ 1  scan0238
Specification sheet comparing the particulars of a 'Ph.III Fan' and a 'Cadillac' fan.18th Jun 1936Box 155 \ 1  scan0239
Test results for a Cadillac V-16 car at Brooklands, comparing performance with and without the fan.18th Jun 1936Box 155 \ 1  scan0240
Summary of radiator test results conducted at Brooklands.3rd Jul 1936Box 155 \ 1  scan0241
Letter to the Clerk of the Course at Brooklands Motor Course requesting track availability for testing.3rd Jul 1936Box 155 \ 1  scan0242
Telegram inquiring about the availability of a track for testing.9th Jul 1936Box 155 \ 1  scan0243
Telegram received by telephone regarding the availability of the track at Weybridge.9th Jul 1936Box 155 \ 1  scan0244
Track visit with car 37-EX at Brooklands to investigate petrol supply drying out at high temperatures.15th Jul 1936Box 155 \ 1  scan0245
Test report on carburetter adjustments, petrol consumption, and issues with gearing, bonnet clips, and bodywork.15th Jul 1936Box 155 \ 1  scan0246
Instructions for preparing the 36-EX car for radiator tests at Brooklands.24th Aug 1936Box 155 \ 1  scan0247
List of instructions for fitting a petrol pump, thermometers, and a bonnet to a car.1st Aug 1936Box 155 \ 1  scan0248
Telegram from Robotham inquiring about track availability for tests at Weybridge.26th Aug 1936Box 155 \ 1  scan0249
Telegram received by telephone regarding track availability.26th Aug 1936Box 155 \ 1  scan0250
Telegram to Mr. Bradley at Brooklands Motor Course enquiring about track availability for a test.7th Sep 1936Box 155 \ 1  scan0251
Telegram received by telephone regarding the availability of tracks.9th Sep 1936Box 155 \ 1  scan0252


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