| Description | Date | Identifier | |
| Main bearing issues on car 22.G.V., coordinating further testing on bad roads, and the return of staff. | 2nd Dec 1936 | Box 101 \ 2 scan0199 | |
| Examination report on the condition of the Big-end and Main bearings for vehicle 22.G.V. | 30th Nov 1936 | Box 101 \ 2 scan0200 | |
| Instructions for road testing vehicle 22-G-IV on bad roads. | 3rd Dec 1936 | Box 101 \ 2 scan0201 | |
| Oil temperature issues and solutions for the Paris Trial's Bentley. | 3rd Dec 1936 | Box 101 \ 2 scan0202 | |
| Deferral of an oil consumption report following an engine oil change. | 3rd Dec 1936 | Box 101 \ 2 scan0203 | |
| Adjustments to a torque governor to meet a recommended idling condition. | 6th Nov 1936 | Box 101 \ 2 scan0204 | |
| Results of cylinder head comparison tests, focusing on idling and slow running qualities. | 4th Nov 1936 | Box 101 \ 2 scan0205 | |
| The testing and modification of suspension damper settings for a 22.G.V. model. | 9th Dec 1936 | Box 101 \ 2 scan0206 | |
| The effects of softer damping on radiator/wing movements and steering joggles. | 9th Dec 1936 | Box 101 \ 2 scan0207 | |
| A recurring failure of a pipe on the main silencer and the suggested fix. | 10th Dec 1936 | Box 101 \ 2 scan0208 | |
| Recurring failure of a silencer pipe and a proposed solution for an additional suspension. | 10th Dec 1936 | Box 101 \ 2 scan0209 | |
| Further breakage in the exhaust system due to a cracked lug and broken rivets. | 11th Dec 1936 | Box 101 \ 2 scan0210 | |
| Exhaust system failure due to a cracked supporting lug, broken rivets and a resulting hole. | 11th Dec 1936 | Box 101 \ 2 scan0211 | |
| Sketch illustrating failures such as cracks, loose rivets, and a broken rivet on an expansion chamber. | 11th Dec 1936 | Box 101 \ 2 scan0212 | |
| Instructions regarding vehicle testing with Champion plugs, the termination of an employee's services, and associated expenses. | 11th Dec 1936 | Box 101 \ 2 scan0213 | |
| Telegraphed query to Hamilton in France regarding interference with a petrol pump. | 12th Dec 1936 | Box 101 \ 2 scan0214 | |
| Responding to a telegram about a petrol pump fault and detailing attempted repairs. | 12th Dec 1936 | Box 101 \ 2 scan0215 | |
| Petrol pump failure reported on the 9th of December, potentially caused by testers in France. | 14th Dec 1936 | Box 101 \ 2 scan0216 | |
| Seeking clarification on the history and breakage of an aluminized mild steel exhaust part on car 22-G-V. | 19th Dec 1936 | Box 101 \ 2 scan0217 | |
| Reporting on a failure of an aluminised mild steel downtake pipe and front expansion box after just one day of running. | 21th Dec 1936 | Box 101 \ 2 scan0218 | |
| Memo about the replacement of a failed aluminised pipe and the handover of a car. | 1st Jan 1937 | Box 101 \ 2 scan0219 | |
| Troubles experienced with a car's engine during a 9,000-mile run. | 1st Jan 1937 | Box 101 \ 2 scan0220 | |
| Engine performance, oil consumption, and component condition following extended mileage testing. | 1st Jan 1937 | Box 101 \ 2 scan0221 | |
| The condition of engine bearings, carburetters, ignition, and radiator fittings after extensive mileage. | 1st Jan 1937 | Box 101 \ 2 scan0222 | |
| Component issues and observations for exhaust fittings, frame fittings, hydraulic dampers, and governor control. | 1st Jan 1937 | Box 101 \ 2 scan0223 | |
| Component failures, modifications, and performance at specific mileages. | 1st Jan 1937 | Box 101 \ 2 scan0224 | |
| Vehicle condition report detailing performance and issues with suspension, axle, electricals, and bodywork. | 1st Jan 1937 | Box 101 \ 2 scan0225 | |
| Report page detailing issues with sun visors, driver comfort, sticking doors, and stiff jacks after mileage. | 1st Jan 1957 | Box 101 \ 2 scan0226 | |
| Requesting clarification on inconsistent mileage reports for a deturbulated cylinder head and valve issues. | 6th Jan 1937 | Box 101 \ 2 scan0227 | |
| Covering letter for a corrected report on vehicle 22.G.V, referencing mileage discrepancies and a valve issue. | 9th Jan 1937 | Box 101 \ 2 scan0228 | |
| From Sg. to Rm. requesting a summary of findings from French tests on the last 9,000 miles for an upcoming chassis conference. | 14th Jan 1937 | Box 101 \ 2 scan0229 | |
| Engine troubles and performance during a 38,923-mile vehicle test. | 1st Jan 1937 | Box 101 \ 2 scan0230 | |
| Engine performance, oil consumption, and bearing conditions following a road test. | 1st Jan 1937 | Box 101 \ 2 scan0231 | |
| The condition of bearings, carburetters, ignition systems, and radiator fittings after extended mileage testing. | 1st Jan 1937 | Box 101 \ 2 scan0232 | |
| Mileage test report detailing issues and observations for exhaust fittings, frame fittings, hydraulic dampers, and governor control. | 1st Jan 1937 | Box 101 \ 2 scan0233 | |
| Component failures and performance, covering links, dampers, brakes, and springs at various mileages. | 1st Jan 1937 | Box 101 \ 2 scan0234 | |
| Vehicle component performance and issues identified during road testing. | 1st Jan 1937 | Box 101 \ 2 scan0235 | |
| Faults with bodywork, sun visors, doors, driving comfort, and jacks. | 1st Jan 1937 | Box 101 \ 2 scan0236 | |
| Parts tested on car 22.G.V. and further proposals for standardization. | 15th Jan 1937 | Box 101 \ 2 scan0237 | |
| Requesting a list of car parts for examination with a view to standardisation. | 16th Feb 1937 | Box 101 \ 2 scan0238 | |
| Dismantling and modification of car 22.G.V. for standardisation. | 25th Feb 1937 | Box 101 \ 2 scan0239 | |
| Page listing modifications to a steering rockershaft pin and specifications for servo linings. | 25th Feb 1937 | Box 101 \ 2 scan0240 | |
| Exchange and finishing of a steering tube for model 22.G.V. | 1st Mar 1937 | Box 101 \ 2 scan0241 | |
| The wear and condition of shock damper links following tests in England and France. | 15th Mar 1937 | Box 101 \ 2 scan0242 | |
| Test report and drawing of a Lower Ball Pin for a Rear Shock Damper Link after a 40,000-mile test. | 15th Mar 1937 | Box 101 \ 2 scan0243 | |
| Request to fit new unions on petrol pipes as previous alterations were found to be unsatisfactory. | 17th Mar 1937 | Box 101 \ 2 scan0244 | |
| Strip report detailing the condition of various components after 38,923 miles of testing. | 8th Mar 1937 | Box 101 \ 2 scan0245 | |
| Condition report detailing issues and observations on various vehicle components including brakes, hubs, axles, springs, and steering. | 8th Mar 1937 | Box 101 \ 2 scan0246 | |
| Strip report detailing the condition of various vehicle components after extensive mileage. | 8th Mar 1937 | Box 101 \ 2 scan0247 | |
| Inspection report detailing the condition of various engine components after service. | 16th Oct 1936 | Box 101 \ 2 scan0248 | |
| Test procedure and results for electrical components removed from chassis 22.G.V. | 16th Oct 1936 | Box 101 \ 2 scan0249 | |
| The condition of an H.T. Cable and Tube, noting cracked varnish and swollen cables. | 16th Oct 1936 | Box 101 \ 2 scan0250 | |
| Camshaft bearing and dowel wear for Chassis 22GY, Unit C.17 after 30,098 miles. | 16th Oct 1936 | Box 101 \ 2 scan0251 | |
| Bend measurements in engine push rods after 30,098 miles. | 4th Mar 1937 | Box 101 \ 2 scan0252 | |
| Table of wear measurements for connecting rod small end bushes after 30,000 miles of use. | 4th Mar 1937 | Box 101 \ 2 scan0253 | |
| Record of piston profile measurements before and after 15,000 miles of use. | 4th Mar 1937 | Box 101 \ 2 scan0254 | |
| Cylinder bore dimension measurements after tests conducted in France. | 4th Mar 1937 | Box 101 \ 2 scan0255 | |
| Test report detailing the dimensions and wear of connecting rod bearings and crankpins for engine unit C17 after mileage tests. | 3rd Mar 1937 | Box 101 \ 2 scan0256 | |
| Engine connecting rod bearing and crankpin wear and dimensions after a mileage test. | 9th Mar 1937 | Box 101 \ 2 scan0257 | |
| Sketch showing a crack in the lower half of a component, noting total mileage. | 9th Mar 1937 | Box 101 \ 2 scan0258 | |
| Blueprint detailing cracks found in exhaust valve seats after a 13,529 mile test in France. | 9th Mar 1937 | Box 101 \ 2 scan0259 | |
| Wear analysis report on axle control bushes and an anchorage spindle after 10,585 miles. | 3rd Mar 1937 | Box 101 \ 2 scan0260 | |
| Test report and diagrams for a Borg & Beck clutch (Type 11A N=26) after 31,628 miles of use. | 8th Mar 1937 | Box 101 \ 2 scan0261 | |
| The wear of a water pump assembly after 30,198 miles, including dimensional analysis of key components. | 4th Mar 1937 | Box 101 \ 2 scan0262 | |
| The condition and wear of C17 unit valves after 13,600 miles in France and England. | 5th Mar 1937 | Box 101 \ 2 scan0263 | |
| Report showing diagrams and measurements of main bearing wear after road tests in France. | 8th Mar 1937 | Box 101 \ 2 scan0264 | |
| Estimate for repairs to a car's wings and chassis after returning from France. | 30th Apr 1937 | Box 101 \ 2 scan0265 | |
| Request to arrange for oil pipes to be fitted to the external oil cleaner on a car. | 27th Aug 1937 | Box 101 \ 2 scan0266 | |
| Requesting an inspection of the oiling for the rear brake actuating shaft bearing. | 3rd Sep 1937 | Box 101 \ 2 scan0267 | |
| The instrument board layout for the 25/30 HP Chassis, referencing the Phantom III model and the Olympia Show. | 4th Jun 1936 | Box 101 \ 3 scan0001 | |
| Ignition advance tests and analysis of turbulent lips on cylinder heads for the 20/25 HP and Bentley models. | 10th Jun 1936 | Box 101 \ 3 scan0002 | |
| Tests comparing turbulent cylinder heads and ignition governors on Bentley and 20/25 engines. | 10th Aug 1936 | Box 101 \ 3 scan0003 | |
| Bench tests for 25/30 HP ignition governors, comparing performance on standard and deturbulated cylinder heads. | 9th Jun 1936 | Box 101 \ 3 scan0004 | |
| The specification and testing of a Bentley type governor in comparison with a Delco governor for a 25/30 HP engine. | 9th Jun 1936 | Box 101 \ 3 scan0005 | |
| Graph showing ignition governor curves against engine RPM for a 25/30 model with a standard turbulent head. | 16th May 1936 | Box 101 \ 3 scan0006 | |
| Graph showing ignition governor curves for a deturbulated cylinder head. | 16th May 1936 | Box 101 \ 3 scan0007 | |
| Technical memo detailing Bentley engine ignition curves for standard and deturbulated cylinder heads. | 9th Jun 1936 | Box 101 \ 3 scan0008 | |
| Graph of ignition governor curves for a Bentley standard turbulent head engine. | 5th Aug 1936 | Box 101 \ 3 scan0009 | |
| Graph of Bentley ignition governor curves for a deturbulated head. | 5th Jun 1936 | Box 101 \ 3 scan0010 | |
| Power comparison graph for a Bentley 4 1/4 Litre engine, comparing standard turbulent and deturbulated cylinder heads. | 5th Jun 1936 | Box 101 \ 3 scan0011 | |
| Detonation tests conducted on 25/30 HP and Bentley cars, comparing cylinder heads and ignition distributors. | 9th Jun 1936 | Box 101 \ 3 scan0012 | |
| Summary of detonation tests performed on engine model B-23-AE. | 9th Jun 1936 | Box 101 \ 3 scan0013 | |
| Results of detonation tests performed on vehicle 21-G-IV. | 9th Jun 1936 | Box 101 \ 3 scan0014 | |
| Graph of detonation curves for a 21 G.T. car using turbulent and deturbulated cylinder heads with fixed ignition. | 9th Jun 1936 | Box 101 \ 3 scan0015 | |
| Performance test graph comparing Standard and De-turbulated cylinder heads using a Delco ignition curve. | 9th Jun 1936 | Box 101 \ 3 scan0016 | |
| Graph plotting road test results on a Bentley to determine the maximum permissible ignition advance to avoid engine detonation. | 11th Jun 1936 | Box 101 \ 3 scan0017 | |
| Follow-up letter expressing frustration over a delayed response to a request for information on the 20/25 and 25/30 HP Chassis. | 11th Jun 1936 | Box 101 \ 3 scan0018 | |
| The acceleration performance of a 25/30 HP car with a large bore engine. | 12th Jun 1936 | Box 101 \ 3 scan0019 | |
| Investigation into overoiling complaints on chassis GUL-59. | 29th Jul 1936 | Box 101 \ 3 scan0020 | |
| Results from a vehicle consumption test including oil pressure, speed and mileage. | 19th Aug 1936 | Box 101 \ 3 scan0021 | |
| The testing and standardisation of the Acme thread on the Bijur starter pinion for 25/30 HP and Bentley models. | 19th Aug 1936 | Box 101 \ 3 scan0022 | |
| The general car position, detailing testing updates and component issues for the Phantom III. | 28th Aug 1936 | Box 101 \ 3 scan0023 | |
| Solutions and findings for engine component issues including exhaust boom, valve springs, and connecting rod bearings. | 28th Aug 1936 | Box 101 \ 3 scan0024 | |
| Test results and ongoing investigations for various car components and models. | 28th Aug 1936 | Box 101 \ 3 scan0025 | |
| 15,000-mile test in France, detailing issues and experiments with steering, oil consumption, roll-rod, and clutch components for the 20/25 HP model. | 28th Aug 1936 | Box 101 \ 3 scan0026 | |
| Progress report on issues with petrol pumps, engine performance, idling, and braking systems. | 28th Aug 1936 | Box 101 \ 3 scan0027 | |
| 12,000-mile Bentley test in France, focusing on improvements to the anti-jagger brake scheme, clutch, and bearings. | 28th Sep 1936 | Box 101 \ 3 scan0028 | |
| Ongoing development issues and improvements across various vehicle systems. | 28th Aug 1936 | Box 101 \ 3 scan0029 | |
| Progress report on developments in tyres, bodywork, engines, and suspension. | 28th Aug 1936 | Box 101 \ 3 scan0030 | |
| The modifications and performance of the Tourist Trophy Car, including concerns about the brakes. | 28th Aug 1936 | Box 101 \ 3 scan0031 | |
| | | | |
