| Description | Date | Identifier | |
| Engine detonation tests with different fuels and the development of a governor curve with vernier control. | 1st Jun 1939 | Box 97 \ 5 scan0192 | |
| Recommendations for production governor curve, vernier control, and ignition timing based on dynamometer test results. | 1st Jun 1939 | Box 97 \ 5 scan0193 | |
| Graph of governor curves for the Bentley V engine, plotting ignition timing advance against engine speed. | 1st Jun 1939 | Box 97 \ 5 scan0194 | |
| Graph showing detonation curves for a Bentley V engine with 7-1 R.C. pistons using various fuels and governor settings. | 1st Jun 1939 | Box 97 \ 5 scan0195 | |
| Dynamometer ignition advance curves for 7-1 R.C. pistons at various engine speeds. | 1st Jun 1939 | Box 97 \ 5 scan0196 | |
| Distributor governor curve graph for a Bentley V engine with 7-1 R.C. pistons. | 2nd Jun 1939 | Box 97 \ 5 scan0197 | |
| Requesting the fitment of Woodhead 7' deflection springs with interleaving to a car. | 2nd Jun 1939 | Box 97 \ 5 scan0198 | |
| Secret report on the second phase of a Bentley Continental Standardisation mileage test. | 2nd Jun 1939 | Box 97 \ 5 scan0199 | |
| Test report on Engine Unit No. 7 after 31,800 miles, detailing performance, issues, and component evaluations. | 2nd Jun 1939 | Box 97 \ 5 scan0200 | |
| Test report on 'Engine Unit No.7' detailing performance metrics and issues encountered during mileage trials. | 2nd Jun 1939 | Box 97 \ 5 scan0201 | |
| The performance, mileage, and issues of a clutch, overdrive gearbox, and propellor shaft. | 2nd Jun 1939 | Box 97 \ 5 scan0202 | |
| Vehicle component performance for the propeller shaft, rear axle, suspension, and steering. | 2nd Jun 1939 | Box 97 \ 5 scan0203 | |
| Tests and developments on suspension, steering, brakes, and electrical equipment. | 2nd Jun 1939 | Box 97 \ 5 scan0204 | |
| The bodywork's durability after 50,000 miles, noting issues with the Vanvooren seats. | 2nd Jun 1939 | Box 97 \ 5 scan0205 | |
| Letter to Park Ward & Co. Ltd. regarding an alteration to a petrol filler on the body of vehicle 8.B.V. | 2nd Jun 1939 | Box 97 \ 5 scan0206 | |
| Letter to Park Ward & Co. Ltd. confirming the decision to fit defroster ducts and supply an Ace tyre cover for chassis 8.B.5. | 3rd Jun 1939 | Box 97 \ 5 scan0207 | |
| Letter to Park Ward & Co. Ltd. regarding the battery position for the 8.B.5 body. | 6th Jun 1939 | Box 97 \ 5 scan0208 | |
| Letter from coachbuilder Park Ward & Co Ltd regarding an alternative position for a petrol filler. | 6th Jun 1939 | Box 97 \ 5 scan0209 | |
| Laboratory report comparing used and unused Castrolite oil and deposits from a French Test Bentley. | 8th Jun 1939 | Box 97 \ 5 scan0210 | |
| Table comparing total mileage against carbon percentage for six designated items. | 11th May 1939 | Box 97 \ 5 scan0211 | |
| Laboratory graph showing the viscosity curve for used Castrolite oil, plotting temperature against efflux time. | 11th May 1939 | Box 97 \ 5 scan0212 | |
| Viscosity curve graph for Unused Castrolite, plotting temperature against time of efflux. | 11th May 1939 | Box 97 \ 5 scan0213 | |
| Specific gravity graph plotting temperature against specific gravity for unused Castrolite. | 11th May 1939 | Box 97 \ 5 scan0214 | |
| Specific gravity graph plotting temperature against specific gravity for used Castrolite. | 11th May 1939 | Box 97 \ 5 scan0215 | |
| Test report on a 'General' bye pass oil filter for a B.S.V. Bentley Engine. | 9th Jun 1939 | Box 97 \ 5 scan0216 | |
| The performance of a 'General' filter regarding oil sludge accumulation and cartridge renewal mileage. | 9th Jun 1939 | Box 97 \ 5 scan0217 | |
| Report comparing used Castrolite oil from an S.S.V. Bentley test engine with standard Castrolite oil. | 9th Jun 1939 | Box 97 \ 5 scan0218 | |
| Laboratory report comparing the properties of used and unused Castrolite oil from a French Test Bentley. | 1st Jun 1939 | Box 97 \ 5 scan0219 | |
| Tabulated report showing total mileage and carbon percentage for designated items A to F. | 11th May 1939 | Box 97 \ 5 scan0220 | |
| Viscosity curve graph for used Castorline, plotting temperature against efflux time. | 11th May 1939 | Box 97 \ 5 scan0221 | |
| Viscosity curve graph for 'Unisol Kant Rust' plotting temperature against efflux time from a Redwood No. 1 Viscometer. | 1st Sep 1939 | Box 97 \ 5 scan0222 | |
| Graph showing the relationship between Temperature in Degrees Centigrade and Specific Gravity. | 11th May 1939 | Box 97 \ 5 scan0223 | |
| Graph plotting Temperature in Degrees Centigrade against Specific Gravity for Wakefield 'Castrol' 'R' oil. | 13th Mar 1930 | Box 97 \ 5 scan0224 | |
| Arranging the delivery of a Bentley chassis to Messrs. Park Ward in London. | 12th Jun 1939 | Box 97 \ 5 scan0225 | |
| Request to despatch a set of 'Amal' bonnet fasteners, clips, and other parts for Bentley Chassis 8.B.5. | 14th Jun 1939 | Box 97 \ 5 scan0226 | |
| Analysing the strength of rationalised chassis steering components following an accident, concluding no strengthening is required for future tests. | 16th Jun 1939 | Box 97 \ 5 scan0227 | |
| Letter to Messrs. Park Ward & Co. Ltd. regarding the despatch of valance strips and fittings for a S.B.V. bonnet. | 23th Jun 1939 | Box 97 \ 5 scan0228 | |
| Requesting the despatch of a set of bonnet valance sides and fittings for an experimental body. | 23th Jun 1939 | Box 97 \ 5 scan0229 | |
| Letter from coachbuilders Park Ward & Co. Ltd concerning the dispatch of bonnet parts for 8.B.V. | 24th Jun 1939 | Box 97 \ 5 scan0230 | |
| The failure of a 2nd Motion Shaft in a B.V. Gear Box, suggesting a cause and remedy. | 27th Jun 1939 | Box 97 \ 5 scan0231 | |
| Photograph of a cluster of helical gears on a shaft. | 3rd Jul 1939 | Box 97 \ 5 scan0232 | |
| Letter to Park Ward & Co. Ltd. regarding materials for chassis 8.B.5 and the collection of two chassis. | 3rd Jul 1939 | Box 97 \ 5 scan0233 | |
| Five specific modifications to be carried out on car 8.B.V. | 8th Jul 1939 | Box 97 \ 5 scan0234 | |
| Instructions for fitting a fuel filler and other required vehicle repairs. | 10th Jul 1939 | Box 97 \ 5 scan0235 | |
| Request to examine a Bentley 8.B.V. for a gearbox knock and a steering grinding noise. | 10th Jul 1939 | Box 97 \ 5 scan0236 | |
| Requesting a car be fitted with a Serck radiator for further work on pressure cooling. | 21th Mar 1940 | Box 97 \ 5 scan0237 | |
| Humorous report detailing a car journey from Derby to St. Alban's, including performance metrics. | 11th Apr 1940 | Box 97 \ 5 scan0238 | |
| Requesting four modifications to a car, including a gearbox change, brake linkage adjustments, a new bearing, and new jacking brackets. | 14th May 1940 | Box 97 \ 5 scan0239 | |
| Gearbox replacement for Bentley Chassis No. 8-B-V, requesting parts that were borrowed from another chassis. | 24th Jun 1940 | Box 97 \ 5 scan0240 | |
| Letter detailing the despatch of replacement parts for a Bentley chassis 8.B.V. | 3rd Jul 1940 | Box 97 \ 5 scan0241 | |
| Specification revision for Bentley Chassis 8-B.V. concerning the fitting of Spaldite interleaving to the rear springs. | 31th Jul 1940 | Box 97 \ 5 scan0242 | |
| The loan and performance testing of the 8.B.V. car. | 20th Oct 1940 | Box 97 \ 5 scan0243 | |
| The fuel and oil economy of two experimental car models. | 20th Oct 1940 | Box 97 \ 5 scan0244 | |
| Modification to utilise existing B.V. springs by inserting a packing and altering the drawing. | 23th Nov 1940 | Box 97 \ 5 scan0245 | |
| Clarifying an order for windscreen rubbers for Ripple and Bentley cars, and reporting on items received. | 6th Dec 1940 | Box 97 \ 5 scan0246 | |
| Request to Park Ward & Co. Ltd. for new windscreen rubbers for a Ripple and a Bentley, with a technical explanation of the existing seal's failure. | 20th Sep 1940 | Box 97 \ 5 scan0247 | |
| Supply of windscreen rubber after the manufacturer's works burned out. | 23th Dec 1940 | Box 97 \ 5 scan0248 | |
| Request to fit a cylinder block with short chromium-plated bores and for information on piston seizing. | 29th Dec 1940 | Box 97 \ 5 scan0249 | |
| Piston seizure after decarbonisation and recommending service intervals for Bentley and B.V. models. | 29th Dec 1940 | Box 97 \ 5 scan0250 | |
| Piston seizure in a Bentley Car 8.B.V. engine, attributing it to carbon build-up. | 29th Dec 1940 | Box 97 \ 5 scan0251 | |
| Piston seizure in a Bentley Car B.E.V. engine, detailing previous decarbonisation and engine specifications. | 29th Dec 1940 | Box 97 \ 5 scan0252 | |
| Specification revision for Bentley V Chassis 8-B-V, Unit No. 7, detailing changes to the rear axle and prop. shaft. | 4th Apr 1941 | Box 97 \ 5 scan0253 | |
| Faults with the reverse light and ignition on car 8.B.V. after 70,000 miles. | 20th May 1941 | Box 97 \ 5 scan0254 | |
| Replacement of L.T. wires and other electrical work on vehicle 8.B.V. | 13th May 1941 | Box 97 \ 5 scan0255 | |
| Replacement of a switchbox and work carried out on the coil and battery terminals. | 19th Jul 1941 | Box 97 \ 5 scan0256 | |
| Engine misfiring in car 8.B.V. caused by a punctured H.T. lead and the wider effects of fluid contamination on electrical components. | 19th Jul 1941 | Box 97 \ 5 scan0257 | |
| Issues with car 8.B.V. during a visit to Huddersfield. | 31th Oct 1941 | Box 97 \ 5 scan0258 | |
| Specification revision for a Bentley Chassis detailing a replacement part fitted to the rear shock dampers. | 29th Sep 1943 | Box 97 \ 5 scan0259 | |
| Work report on Bentley V Chassis 8-B-V, detailing the crack testing and refitting of the lower triangle levers. | 4th Oct 1943 | Box 97 \ 5 scan0260 | |
| Revision to the specification for a Bentley Chassis 8-B-V. | 12th Oct 1943 | Box 97 \ 5 scan0261 | |
| Secret progress report on the B.III car, its road-holding qualities, and future development plans. | 18th Mar 1938 | Box 97 \ 5 scan0262 | |
| Test report detailing issues with a car's suspension, handling, engine, brakes, body, and heater. | 19th Mar 1938 | Box 97 \ 5 scan0263 | |
| Car's poor cold-start performance compared to a standard Bentley, fuel usage, and a non-functional speedometer. | 19th Mar 1938 | Box 97 \ 5 scan0264 | |
| List of eleven modifications to be carried out on vehicle 7.B.V. in the Fitting Shop. | 21th Mar 1938 | Box 97 \ 5 scan0265 | |
| Week-end run report for vehicle 7.B.V., detailing performance issues across several components. | 21th Mar 1938 | Box 97 \ 5 scan0266 | |
| Work request memo detailing suspension, brake, and exhaust modifications for a Bentley III - 7.B.V. | 23th Apr 1938 | Box 97 \ 5 scan0267 | |
| Log book entry detailing a car's suspension test and performance observations. | 2nd May 1938 | Box 97 \ 5 scan0268 | |
| Brake performance and planned steering modifications. | 2nd May 1938 | Box 97 \ 5 scan0269 | |
| Request to make and fit a cover plate and ferrules for the flywheel marking inspection hole on a Bentley III 7.B.V. | 4th May 1938 | Box 97 \ 5 scan0270 | |
| Progress report on the B.III car and engine development, covering road tests, parts durability, and experimental costs. | 18th May 1938 | Box 97 \ 5 scan0271 | |
| Progress report on the development of a new car's gearbox, engine mounting, exhaust system, suspension, and frame. | 18th May 1938 | Box 97 \ 5 scan0272 | |
| Request to modify the exhaust system on a 7.B.VI - Bentley III by fitting a straight through pipe. | 18th May 1938 | Box 97 \ 5 scan0273 | |
| General notes on testing a Bentley III engine since Easter, detailing issues and proposed solutions. | 19th May 1938 | Box 97 \ 5 scan0274 | |
| Technical note on engine developments regarding the air silencer, rocker cover oil leaks, and ground clearance. | 19th May 1938 | Box 97 \ 5 scan0275 | |
| Engine silencer tests, automatic carburetter performance, and lessons learned from an obsolete gearbox lever mechanism. | 19th May 1938 | Box 97 \ 5 scan0276 | |
| Issues with the gearbox, propeller shaft, and brakes. | 19th May 1938 | Box 97 \ 5 scan0277 | |
| Issues and modifications for vehicle brake components. | 19th May 1938 | Box 97 \ 5 scan0278 | |
| Issues and modifications related to vehicle suspension components. | 19th May 1938 | Box 97 \ 5 scan0279 | |
| Progress report on vehicle suspension system tests and developments. | 19th May 1938 | Box 97 \ 5 scan0280 | |
| Faults and observations on electrical equipment and bodywork. | 19th May 1938 | Box 97 \ 5 scan0281 | |
| Issues and observations on bodywork components including the windscreen, jacks, and tyres. | 19th May 1938 | Box 97 \ 5 scan0282 | |
| List of five work instructions for a 7.B.V. Bentley III car that is stuck in bottom gear. | 25th May 1938 | Box 97 \ 5 scan0283 | |
| Instructions for modifying a flywheel to fit a 10 inch Long C.F. Clutch on Chassis 7.B.V. | 25th May 1938 | Box 97 \ 5 scan0284 | |
| List of required work and modifications for a Bentley III vehicle. | 14th Jun 1938 | Box 97 \ 5 scan0285 | |
| Confirming the acceptance of a Bentley III car for fitting details. | 16th Jun 1938 | Box 97 \ 5 scan0286 | |
| Request to manufacture an experimental air silencer for a Bentley III with specific design features. | 14th Jun 1938 | Box 97 \ 5 scan0287 | |
| Requesting a new tunnel for the rear foot wells of a Bentley III. | 20th Jun 1938 | Box 97 \ 5 scan0288 | |
| Request to order 12 rear buffers for a Bentley III 7.B.V. chassis. | 20th Jun 1938 | Box 97 \ 5 scan0289 | |
| Request for a new damper pressure gauge dial and a direction indicator disc for the pump handle. | 23th Jun 1938 | Box 97 \ 5 scan0290 | |
| Instruction to make and fit a water excluder for the propeller shaft centre bearing on a 7.B.V. Bentley III. | 23th Jun 1938 | Box 97 \ 5 scan0291 | |
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