| Description | Date | Identifier | |
| Correcting a previously reported fan speed to engine speed ratio for a Cadillac car. | 11th Sep 1936 | Box 155 \ 1 scan0253 | |
| Specification sheet detailing the particulars of two different fans, the Phantom III and the Cadillac. | 4th Sep 1936 | Box 155 \ 1 scan0254 | |
| Further radiator, fan, and cowl tests conducted at Brooklands on the Ph.III car. | 4th Sep 1936 | Box 155 \ 1 scan0255 | |
| Conclusions and summary of cooling fan tests, comparing different fan and cowl configurations. | 2nd Sep 1936 | Box 155 \ 1 scan0256 | |
| Summary of radiator test results under various fan and cowling configurations. | 5th Sep 1936 | Box 155 \ 1 scan0257 | |
| Addition to a report detailing cooling tests on a Phantom III after removing lights, horns, and bumper. | 5th Sep 1936 | Box 155 \ 1 scan0258 | |
| Results of a Brooklands test comparing critical air temperature under various car configurations at high speed. | 8th Sep 1936 | Box 155 \ 1 scan0259 | |
| Telegram received by telephone confirming track availability for the following day. | 23th Sep 1936 | Box 155 \ 1 scan0260 | |
| Short telegram message enquiring about the availability of a track for testing. | 23th Sep 1936 | Box 155 \ 1 scan0261 | |
| Test report detailing lap times and adjustments for a T.T. Bentley at Brooklands on October 3rd, 1936. | 5th Oct 1936 | Box 155 \ 1 scan0262 | |
| Test report for Race Car No. 7, detailing performance, lap times, and tyre changes. | 5th Oct 1936 | Box 155 \ 1 scan0263 | |
| T.T. Bentleys at Brooklands, detailing car setup, lap times, and speeds for two vehicles. | 20th Oct 1936 | Box 155 \ 1 scan0264 | |
| Summary of performance results comparing a No. 7 Race Car with an 'A' Practice Car. | 20th Oct 1936 | Box 155 \ 1 scan0265 | |
| Letter from Brooklands Automobile Racing Club advising that an average speed of 90 m.p.h. is not possible on the outer circuit due to repairs and traffic. | 5th Jan 1937 | Box 155 \ 1 scan0266 | |
| Letter from the Experimental Department inquiring about continuous running tests at the Brooklands Motor Course. | 26th Feb 1937 | Box 155 \ 1 scan0267 | |
| Telex message inquiring about the availability of the Weybridge track for testing. | 6th Apr 1937 | Box 155 \ 1 scan0268 | |
| Telegram received by telephone regarding track availability. | 6th Apr 1937 | Box 155 \ 1 scan0269 | |
| Telegram received by telephone regarding the availability of a track on certain weekdays. | 6th Apr 1937 | Box 155 \ 1 scan0270 | |
| Post office telegram advising of track availability on specific days. | 6th Apr 1937 | Box 155 \ 1 scan0271 | |
| Prepaid reply telegram enquiring about the availability of the Weybridge track for testing. | 7th Apr 1937 | Box 155 \ 1 scan0272 | |
| Telegram received by telephone concerning track availability. | 7th Apr 1937 | Box 155 \ 1 scan0273 | |
| Telegram received by telephone confirming that the track is available all day. | 7th Apr 1937 | Box 155 \ 1 scan0274 | |
| Telegram confirming the availability of a track on requested days. | 7th Apr 1937 | Box 155 \ 1 scan0275 | |
| The work required to prepare car 37-EX for Brooklands cooling tests. | 22th May 1937 | Box 155 \ 1 scan0276 | |
| Continuation of instructions regarding feed lines to petrol pumps and obtaining a louvered bonnet for car 37-EX. | 26th May 1937 | Box 155 \ 1 scan0277 | |
| Request to fit a standard set of engine sideguards to the 37-EX car for Brooklands. | 26th May 1937 | Box 155 \ 1 scan0278 | |
| Testing the 37-EX model in London traffic and fitting an alternative thermometer union. | 27th May 1937 | Box 155 \ 1 scan0279 | |
| Post Office telegram confirming track availability. | 26th May 1937 | Box 155 \ 1 scan0280 | |
| Prepaid reply telegram enquiring about the availability of a track for testing. | 28th May 1937 | Box 155 \ 1 scan0281 | |
| Daily report on overheating tests conducted at Cricklewood and Brooklands. | 1st Jun 1937 | Box 155 \ 1 scan0282 | |
| Daily report detailing overheating tests carried out on a Standard Phantom III at Brooklands. | 3rd Jun 1937 | Box 155 \ 1 scan0283 | |
| Engine cooling performance under idling and full speed conditions, and a maximum lap speed for car 37-EX. | 8th Jun 1937 | Box 155 \ 1 scan0284 | |
| Daily report on radiator and fan testing conducted at Brooklands to resolve overheating issues. | 8th Jun 1937 | Box 155 \ 1 scan0285 | |
| Daily report on radiator cooling tests conducted at Brooklands. | 10th Jun 1937 | Box 155 \ 1 scan0286 | |
| Letter from Brooklands Automobile Racing Club proposing the rental of a depot at the racetrack. | 16th Jun 1937 | Box 155 \ 1 scan0287 | |
| Lap and 1/2 mile speeds from radiator tests at Brooklands, with additional results for a 36-EX car. | 17th Jun 1937 | Box 155 \ 1 scan0288 | |
| Letter to A.P. Bradley of the Brooklands Automobile Racing Club regarding a forthcoming discussion in Derby. | 18th Jun 1937 | Box 155 \ 1 scan0289 | |
| Query regarding test results for a high-speed fan and its effectiveness in preventing a car from boiling. | 18th Jun 1937 | Box 155 \ 1 scan0290 | |
| Letter from the Brooklands Automobile Racing Club confirming a meeting. | 21th Jun 1937 | Box 155 \ 1 scan0291 | |
| Letter to Mr. P. Bradley of Brooklands Automobile Racing Club confirming a visit to the works. | 23th Jun 1937 | Box 155 \ 1 scan0292 | |
| Performance of various engine cooling fans and the standardization of an improved 5-bladed version. | 23th Jun 1937 | Box 155 \ 1 scan0293 | |
| Telegram to Bradley in Weybridge regarding the opening of the track. | 23th Jun 1937 | Box 155 \ 1 scan0294 | |
| Tests carried out on Phantom III radiators and fans at Brooklands and Cricklewood. | 24th Jun 1937 | Box 155 \ 1 scan0295 | |
| Vehicle cooling system tests and conclusions drawn from the results. | 24th Jun 1937 | Box 155 \ 1 scan0296 | |
| Tests and conclusions on improving engine cooling systems and under-bonnet temperatures. | 24th Jun 1937 | Box 155 \ 1 scan0297 | |
| Summary of test results and conclusions regarding the cooling system performance, including fan, bonnet, and radiator matrix configurations. | 24th Aug 1937 | Box 155 \ 1 scan0298 | |
| Summary of overheating issues, proposing the standardisation of a 5-blade Cadillac fan and discussing a new dashboard thermometer. | 24th Aug 1937 | Box 155 \ 1 scan0299 | |
| Results of idling cooling tests carried out on a 37 EX car at Brooklands. | 24th Aug 1937 | Box 155 \ 1 scan0300 | |
| Test figures for component temperatures during vehicle operation in dense London traffic. | 24th Aug 1937 | Box 155 \ 1 scan0301 | |
| Table of results from cooling tests carried out at Brooklands on the 37 EX car. | 24th Aug 1937 | Box 155 \ 1 scan0302 | |
| Table detailing the results of cooling tests carried out at Brooklands on an experimental car. | 24th Aug 1937 | Box 155 \ 1 scan0303 | |
| Results of tests at Brooklands on under bonnet temperatures. | 26th Jun 1937 | Box 155 \ 1 scan0304 | |
| Performance test data sheet for vehicle 39 EX at Brooklands, detailing lap speeds, acceleration, and deceleration times. | 26th Jun 1937 | Box 155 \ 1 scan0305 | |
| Performance test results for two Bentley models. | 25th Jun 1937 | Box 155 \ 1 scan0306 | |
| Brief note acknowledging the receipt and noting the contents of a previous communication. | 25th Jun 1937 | Box 155 \ 1 scan0307 | |
| Graph showing the Tractive Resistance Curve and Horse Power Required at the road wheels for a 47cwt car at Brooklands. | 29th Jun 1937 | Box 155 \ 1 scan0308 | |
| Acceleration curve graph comparing the performance of various car models. | 26th May 1937 | Box 155 \ 1 scan0309 | |
| Letter proposing to conduct tests at the Brooklands Motor Course track. | 26th Jun 1937 | Box 155 \ 1 scan0310 | |
| Works slip returning memos and a file copy that were sent to the sender by mistake. | 26th Jun 1937 | Box 155 \ 1 scan0311 | |
| Telegram informing of track unavailability on a Tuesday and Wednesday. | 28th Jun 1937 | Box 155 \ 1 scan0312 | |
| From Robotham to J.L. Evans arranging a meeting at Brooklands for a Bentley comparison test. | 28th Jun 1937 | Box 155 \ 1 scan0313 | |
| Telegram received by telephone regarding the availability of a track. | 28th Jun 1937 | Box 155 \ 1 scan0314 | |
| Letter from Brooklands Automobile Racing Club regarding the unavailability of the track for testing. | 28th Jun 1937 | Box 155 \ 1 scan0315 | |
| Personal letter to W. A. Robotham apologising for missing a meeting at the Track. | 30th Jun 1937 | Box 155 \ 1 scan0316 | |
| Cover note for Phantom III performance test curves from Brooklands, detailing acceleration, retardation and speedometer results. | 2nd Jul 1937 | Box 155 \ 1 scan0317 | |
| Performance graph for a Vauxhall 25 HP vehicle tested at Brooklands, showing tractive resistance and horsepower required at various speeds. | 24th Jun 1937 | Box 155 \ 1 scan0318 | |
| Comparing car performance data for a Brooklands lap. | 16th Mar 1939 | Box 155 \ 1 scan0319 | |
| Graph showing results of tractive resistance versus speed tests conducted at Brooklands. | 25th Jun 1937 | Box 155 \ 1 scan0320 | |
| Hand-drawn performance comparison of a 28 HP Oldsmobile and a 30 HP Rolls-Royce, including data tables for acceleration/deceleration times and a graph of Horsepower vs. MPH. | 24th Jun 1937 | Box 155 \ 1 scan0321 | |
| Tractive resistance curve graph for an Oldsmobile, plotting horsepower and seconds against miles per hour. | 24th Jun 1937 | Box 155 \ 1 scan0322 | |
| Graph showing speedometer correction curve test results for a Phantom III at Brooklands. | 29th Jun 1937 | Box 155 \ 1 scan0323 | |
| Graph showing the results of a retardation test for a Phantom III Park Ward Saloon at Brooklands. | 29th Jun 1937 | Box 155 \ 1 scan0324 | |
| Graph showing acceleration test curves for a Phantom III with an overdrive gearbox, conducted at Brooklands. | 29th Jun 1937 | Box 155 \ 1 scan0325 | |
| Programme of test bed work for a Phantom engine, detailing carburettor, ignition, and camshaft tests. | 24th Nov 1936 | Box 155 \ 2 scan0001 | |
| Progress report on endurance testing and component specifications for various engine units. | 24th Nov 1936 | Box 155 \ 2 scan0002 | |
| Test procedures and requirements for various engines, including B.22, C.16, and the B.23 O.H.C. engine. | 24th Nov 1936 | Box 155 \ 2 scan0003 | |
| Order for solid idler gears for Phantom III test bed engines due to cracking issues. | 27th Nov 1936 | Box 155 \ 2 scan0004 | |
| Proposing a reliability test rig for a 4¼-Litre Bentley overhead camshaft engine conversion. | 28th Nov 1936 | Box 155 \ 2 scan0005 | |
| Program of test bed work for Phantom III and Bentley engine units. | 30th Nov 1936 | Box 155 \ 2 scan0006 | |
| Engine test instructions and specifications for B.19 and O.H.C. Bentley No.23. | 30th Nov 1936 | Box 155 \ 2 scan0007 | |
| Instructions for oil testing on a C.14 unit and assembly details for a B.9 test bed unit. | 30th Nov 1936 | Box 155 \ 2 scan0008 | |
| Programme of test bed work for Phantom III and Bentley engine units. | 30th Nov 1936 | Box 155 \ 2 scan0009 | |
| List of engine endurance test instructions and specifications for an O.H.C. Bentley engine. | 30th Nov 1936 | Box 155 \ 2 scan0010 | |
| Instructions for completing jobs and carrying out various oil and engine unit tests. | 30th Nov 1936 | Box 155 \ 2 scan0011 | |
| Sending holders for each test bed to indicate special parts and the nature of the test. | 4th Dec 1936 | Box 155 \ 2 scan0012 | |
| Programme of test bed work for various engine units, outlining endurance tests and development features. | 7th Dec 1936 | Box 155 \ 2 scan0013 | |
| Technical memo detailing continued testing and assembly programmes for various engine units. | 7th Dec 1936 | Box 155 \ 2 scan0014 | |
| Test specifications for unit B.9 (25/30) including air intake, exhaust valves, and spark plug requirements. | 7th Dec 1936 | Box 155 \ 2 scan0015 | |
| Request to test the deletion of the front inlet water pipe on the Phantom III hot spot box to save weight and expense. | 9th Dec 1936 | Box 155 \ 2 scan0016 | |
| Request confirming the addition of a radius to chromium-plated front collets for airscrew hubs on test beds. | 10th Dec 1936 | Box 155 \ 2 scan0017 | |
| Order for 12 glass tube thermometers from L. Casartelli & Sons. | 14th Dec 1936 | Box 155 \ 2 scan0018 | |
| Programme of test bed work for Phantom III, Continental, and Bentley engine units. | 14th Dec 1936 | Box 155 \ 2 scan0019 | |
| Engine component assembly and testing procedures for endurance and oil consumption. | 14th Dec 1936 | Box 155 \ 2 scan0020 | |
| Request to arrange a test bed mounting for a Bentley engine. | 15th Dec 1936 | Box 155 \ 2 scan0021 | |
| Programme of test bed work for a Phantom III engine, No. 9 unit, outlining specifications and jobs to be carried out. | 30th Dec 1936 | Box 155 \ 2 scan0022 | |
| Instructions for engine assembly, testing, and component modifications for various Continental and Bentley units. | 30th Dec 1936 | Box 155 \ 2 scan0023 | |
| List of tests and considerations for an OHC engine's valve gear, induction system, and related components. | 30th Dec 1936 | Box 155 \ 2 scan0024 | |
| List of tests, reports, and modifications for various engine components. | 30th Dec 1936 | Box 155 \ 2 scan0025 | |
| Outlining the programme of test bed work for various engine units. | 4th Jan 1936 | Box 155 \ 2 scan0026 | |
| Instructions for endurance and oil consumption testing of engine components B-3 and B-9. | 4th Jan 1936 | Box 155 \ 2 scan0027 | |
| | | | |
