| Description | Date | Identifier | |
| Querying the inconvenient gear lever position and lack of foot room on the 'Silver Ripple' 12-B-V model. | 9th Jun 1939 | Box 98 \ 5 scan0185 | |
| The gear lever position and rear passenger room for the Silver Ripple model. | 10th Jun 1939 | Box 98 \ 5 scan0186 | |
| Ergonomic issues with the 'Silver Ripple' model, focusing on the gear lever and rear passenger foot space. | 12th Jun 1939 | Box 98 \ 5 scan0187 | |
| For the file on 'Silver Ripple I', mentioning mileage and other details. | 13th Jun 1939 | Box 98 \ 5 scan0188 | |
| Modifications and tests for the Ripple Unit on a 12.B.V. chassis. | 10th Jun 1939 | Box 98 \ 5 scan0189 | |
| List of specifications and modifications for an engine unit, detailing changes to various components. | 16th Jun 1939 | Box 98 \ 5 scan0190 | |
| Specification sheet for engine components including crankcase, crankshaft, and pistons. | 16th Jun 1939 | Box 98 \ 5 scan0191 | |
| Request to reline a servo on job 12.B.V. with genuine VG.90 linings. | 19th Jun 1939 | Box 98 \ 5 scan0192 | |
| Request to fit various silencers and tail pipes to a 12.B.V. car with a Ripple Engine. | 19th Jun 1939 | Box 98 \ 5 scan0193 | |
| Faults found in a car's gearbox, brakes, steering, engine, suspension, and clutch after a weekend test. | 19th Jun 1939 | Box 98 \ 5 scan0194 | |
| Urgent internal memo requesting the preparation of an inertia ring for a specific chassis unit. | 22th Jun 1939 | Box 98 \ 5 scan0195 | |
| Weight analysis of 12-B-V coachwork and potential future weight reduction. | 22th Jun 1939 | Box 98 \ 5 scan0196 | |
| Weight analysis of the 12.B.V. body and chassis, detailing components and comparing figures with Park Wards. | 22th Jun 1939 | Box 98 \ 5 scan0197 | |
| Secret memo following up on a previous query regarding the position of the change-speed lever for 'Silver Ripple'. | 26th Jun 1939 | Box 98 \ 5 scan0198 | |
| Request for a complete weight analysis of 12.B.V. | 27th Jun 1939 | Box 98 \ 5 scan0199 | |
| Requesting a list of jobs for the 'Ripple' chassis conversion, to be circulated to all testers. | 28th Jun 1939 | Box 98 \ 5 scan0200 | |
| Propeller shaft centre bearings, including an order for new parts and a specification for another model. | 30th Jun 1939 | Box 98 \ 5 scan0201 | |
| Fitting Skefco special wheel bearings to a 12.B.V. rear axle. | 30th Jun 1939 | Box 98 \ 5 scan0202 | |
| Modifications for Gearbox No. 11 to be fitted to a 12.B.V. for its French test. | 30th Jun 1939 | Box 98 \ 5 scan0203 | |
| Summary of points raised during a conference on the 'Silver Ripple' car. | 30th Jun 1939 | Box 98 \ 5 scan0204 | |
| List of action points regarding car fittings and preparation for testing and delivery to France. | 30th Jun 1939 | Box 98 \ 5 scan0205 | |
| Fitting of a lightened bumper bar to vehicle 12.B.V. before it leaves for France. | 1st Jul 1939 | Box 98 \ 5 scan0206 | |
| Instructions and providing updates on various items for the 'Silver Ripple' project. | 3rd Jul 1939 | Box 98 \ 5 scan0207 | |
| Weight analysis for the 12.B.V. Ripple model. | 3rd Jul 1939 | Box 98 \ 5 scan0208 | |
| Follow-up request for a reply regarding the project 'Silver Ripple' 12-B-V. | 3rd Jul 1939 | Box 98 \ 5 scan0209 | |
| Secret memo correcting the word 'Forward' to 'Backward' in a previous document concerning 'Silver Ripple'. | 4th Jul 1939 | Box 98 \ 5 scan0210 | |
| Forwarding of blueprints for a Bentley 12-B.V. rear bumper. | 4th Jul 1939 | Box 98 \ 5 scan0211 | |
| Requesting the fitting of a 12.B.V. bonnet with the latest fasteners and new side plates. | 5th Jul 1939 | Box 98 \ 5 scan0212 | |
| The brake lining material for the 12.B.V. model on the front and rear. | 10th Jul 1939 | Box 98 \ 5 scan0213 | |
| Requesting the fitting of a Marston heater to a 12.B.V. car destined for France. | 11th Jul 1939 | Box 98 \ 5 scan0214 | |
| Letter to Park Ward & Co. Ltd. discussing weight savings and production implications for the Bentley 12.B.5 body. | 11th Jul 1939 | Box 98 \ 5 scan0215 | |
| The second page of a letter arranging a preliminary talk with Mr. Evernden. | 11th Jul 1939 | Box 98 \ 5 scan0216 | |
| Responding to specific items regarding parts, assembly, and schemes. | 11th Jul 1939 | Box 98 \ 5 scan0217 | |
| Modernising the bonnet of a Bentley 5, chassis 12.B.5, to use standard 'Amal' fasteners. | 14th Jul 1939 | Box 98 \ 5 scan0218 | |
| Forwarding of blueprints for a lightened rear bumper bracket for the Bentley 12-8-V chassis. | 15th Jul 1939 | Box 98 \ 5 scan0219 | |
| Note about the trial of a B.V. Car by Geoffrey Smith. | 19th Jul 1939 | Box 98 \ 5 scan0220 | |
| Secret memo regarding the handover and testing of car 12-B-V (Ripple) in London traffic conditions. | 1st Aug 1939 | Box 98 \ 5 scan0221 | |
| Fault report from a test drive of car '12 B.V (?) - RIPPLE'. | 2nd Aug 1939 | Box 98 \ 5 scan0222 | |
| List of nine work items for final adjustments to car 12-B-V before it commences its mileage. | 10th Aug 1939 | Box 98 \ 5 scan0223 | |
| With three action points regarding a propellor shaft, petrol tank gauge, and air vent filling pipe. | 14th Aug 1939 | Box 98 \ 5 scan0224 | |
| Confirming a courtesy car has been provided whilst a cylinder block is changed on another vehicle. | 29th Sep 1939 | Box 98 \ 5 scan0225 | |
| The irregular importation of chassis 14.B.V. and plans for re-importing the repaired body. | 27th Dec 1939 | Box 98 \ 5 scan0226 | |
| Various faults found in a test vehicle, including issues with the gearbox, heater, and petrol consumption. | 29th Dec 1939 | Box 98 \ 5 scan0227 | |
| Listing issues with the clock, instrument board lighting, and oil consumption. | 29th Dec 1939 | Box 98 \ 5 scan0228 | |
| Insurance claim for an accident to vehicle 14.B.5, seeking repair and towing costs. | 3rd Jan 1940 | Box 98 \ 5 scan0229 | |
| Complete weight analysis of the Continental Bentley. | 9th Jan 1940 | Box 98 \ 5 scan0230 | |
| Letter to Park Ward & Co. regarding issues with dropping doors and strained hinges on an all-steel body. | 24th Jan 1940 | Box 98 \ 5 scan0231 | |
| Instruction to fit a small bore induction pipe to cars, replacing the existing larger bore pipes. | 2nd Feb 1940 | Box 98 \ 5 scan0232 | |
| The repair of a leaking roof on Chassis No. 12-B-V and awaiting instructions. | 19th Feb 1940 | Box 98 \ 5 scan0233 | |
| Vulnerability of the main battery lead and the need for a design change. | 1st Mar 1940 | Box 98 \ 5 scan0234 | |
| Serious fault where a main battery cable shorted, causing a fire risk, and the subsequent wiring modifications. | 1st Mar 1940 | Box 98 \ 5 scan0235 | |
| Blueprints and altered drawings for the B.60 RIPPLET scheme, covering air silencers and cylinder heads. | 9th Aug 1940 | Box 98 \ 5 scan0236 | |
| New and existing parts required for a Shackle Bracket assembly. | 9th Aug 1940 | Box 98 \ 5 scan0237 | |
| Brake wear and adjustments for a 12-B-V model, with a handwritten query about comparison to a B2 model and a response. | 30th Sep 1940 | Box 98 \ 5 scan0238 | |
| Investigation into steering nibbles on car 12.B.V. after changing the tyres. | 5th Oct 1940 | Box 98 \ 5 scan0239 | |
| Various vehicle performance issues, including weak carburetion, poor acceleration, and noisy components in cold weather. | 21th Jan 1941 | Box 98 \ 5 scan0240 | |
| Various faults and observations on vehicle 12.B.V. | 24th Mar 1941 | Box 98 \ 5 scan0241 | |
| Requesting details of petrol and oil added to chassis 12.B.V whilst at Glasgow. | 23th Apr 1941 | Box 98 \ 5 scan0242 | |
| Road test report giving impressions on the handling, performance, and build quality of a 'Rationalised Programme' car. | 23th Apr 1941 | Box 98 \ 5 scan0243 | |
| Continued report on a car's performance, discussing exhaust, carburetters, engine idling, and overall driving experience. | 24th Apr 1941 | Box 98 \ 5 scan0244 | |
| Specification revision for Bentley Chassis 12-B-V, detailing changes to the rear springs. | 24th Apr 1941 | Box 98 \ 5 scan0245 | |
| Faults with car 12.B.V. after it was loaned out. | 25th Apr 1941 | Box 98 \ 5 scan0246 | |
| Issues with the speedometer, gearbox, and carburation of car 12.B.V. | 25th Apr 1941 | Box 98 \ 5 scan0247 | |
| Specification revision for Bentley Chassis 12-B-V, Engine Unit Ripple No. 2, detailing changes to the front shock absorbers. | 20th May 1941 | Box 98 \ 5 scan0248 | |
| Specification revision for a Bentley Chassis 12.B.V., detailing changes to the rear axle and hubs. | 8th Mar 1944 | Box 98 \ 5 scan0249 | |
| Blueprints and production instructions for Bentley 111 induction pipes. | 16th Nov 1937 | Box 99 \ 1 scan0001 | |
| Proposing alternative induction pipe designs for the Bentley III engine for comparative testing. | 22th Dec 1937 | Box 99 \ 1 scan0002 | |
| Technical memorandum detailing the requirements and outstanding points for the Bentley III induction system. | 7th Mar 1938 | Box 99 \ 1 scan0003 | |
| To stop further design work on an existing induction system and delay drawings for the final Bentley III induction system. | 3rd Mar 1938 | Box 99 \ 1 scan0004 | |
| Requesting the replacement of the induction system on car 7.B.V. | 30th Mar 1938 | Box 99 \ 1 scan0005 | |
| Request to manufacture a new, larger vent pipe for a Bentley III to prevent carburettor flooding. | 7th Apr 1938 | Box 99 \ 1 scan0006 | |
| Inspection report on the Bentley III S.U. Carburetter High Pressure Pump, detailing issues with flooding and component finish. | 26th Apr 1938 | Box 99 \ 1 scan0007 | |
| Suggested specification for a Bentley III induction system, proposing to combine mixture and automatic controls on one drawing. | 28th Apr 1938 | Box 99 \ 1 scan0008 | |
| Specification document detailing modifications to the Bentley III induction system. | 28th Apr 1938 | Box 99 \ 1 scan0009 | |
| Scheme for testing mixture controls and an automatic device prior to a 10,000-mile test. | 28th Apr 1938 | Box 99 \ 1 scan0010 | |
| The specification for the Bentley 111 induction system and carburetter. | 5th May 1938 | Box 99 \ 1 scan0011 | |
| Issues and proposed modifications for Bentley III carburettors. | 6th May 1938 | Box 99 \ 1 scan0012 | |
| Comparative test report on four different induction systems for the Bentley III and Bentley 30 models. | 10th May 1938 | Box 99 \ 1 scan0013 | |
| Technical comparison between Stromberg and S.U. carburettor systems, focusing on part-throttle correction and the effects of mixture pulsation. | 10th May 1938 | Box 99 \ 1 scan0014 | |
| Analysis of engine test results regarding part throttle correction, mixture settings, and induction pipe design. | 10th May 1938 | Box 99 \ 1 scan0015 | |
| Power and B.M.E.P. performance graph for a 4 1/4 Litre Bentley engine. | 10th May 1938 | Box 99 \ 1 scan0016 | |
| Power curve graph for a 4 1/4 Litre Bentley engine comparing two different induction systems. | 1st Jan 1933 | Box 99 \ 1 scan0017 | |
| Power curve graph for a 4 1/4 Litre Bentley engine comparing two different induction systems. | 1st Jan 1933 | Box 99 \ 1 scan0018 | |
| Graph illustrating part-throttle fuel economy for a 4¼ Litre Bentley engine, comparing different carburettor systems. | 1st Jan 1933 | Box 99 \ 1 scan0019 | |
| Graph showing fuel economy at part throttle for a 4 1/4 Litre Bentley engine. | 1st Jan 1933 | Box 99 \ 1 scan0020 | |
| Graph comparing the fuel economy of two different induction systems for a 4 1/4 Litre Bentley. | 1st Jan 1933 | Box 99 \ 1 scan0021 | |
| Graph comparing part throttle fuel economy against engine RPM for two different induction systems on a 4 1/4 Litre Bentley. | 30th May 1938 | Box 99 \ 1 scan0022 | |
| The need to mock-up parts and make design changes to the Bentley III induction system. | 30th May 1938 | Box 99 \ 1 scan0023 | |
| Producing a mock-up induction system for the Bentley III engine, incorporating a new automatic S.U. carburetter. | 22th Jun 1938 | Box 99 \ 1 scan0024 | |
| The effect of intake air temperature on the power, detonation and carburation of a Bentley III unit. | 11th Aug 1938 | Box 99 \ 1 scan0025 | |
| Graph showing Power & Detonation performance against Intake Air Temperature for a Bentley III engine. | 1st Jul 1938 | Box 99 \ 1 scan0026 | |
| Blueprint chart of a Bentley III engine showing power and detonation characteristics against RPM and ignition advance. | 1st Jul 1938 | Box 99 \ 1 scan0027 | |
| Essential alterations to float-chamber components for the Bentley III & B.50 chassis. | 18th Aug 1938 | Box 99 \ 1 scan0028 | |
| Proposed modifications to the Bentley 111 starter carburetter unit to eliminate air intake whistle and prevent fire risk from petrol spillage. | 19th Aug 1938 | Box 99 \ 1 scan0029 | |
| Blueprint graph comparing the power output curves for the Phantom III and Bentley III engines with open exhausts. | 1st Nov 1938 | Box 99 \ 1 scan0030 | |
| Issues with the Bentley III induction system and the need to expedite testing on the newly designed version. | 1st Nov 1938 | Box 99 \ 1 scan0031 | |
| B.V. Induction System and a decision on automatic carburation for the Bentley V. | 21th Nov 1938 | Box 99 \ 1 scan0032 | |
| Issues with banjo connections on the Bentley V induction system petrol pipes. | 29th Nov 1938 | Box 99 \ 1 scan0033 | |
| Request to produce a modified detail drawing for Bentley V induction pipes. | 2nd Dec 1938 | Box 99 \ 1 scan0034 | |
| Order of copper and asbestos washers for testing on the Bentley V. | 9th Dec 1938 | Box 99 \ 1 scan0035 | |
| | | | |
