| Description | Date | Identifier | |
| Damper wheel design, materials, and friction characteristics, including a technical sketch. | 11th May 1932 | Box 178 \ 3 img163 | |
| Noisy axle dampers and suggesting design improvements to prevent chatter. | 11th May 1932 | Box 178 \ 3 img164 | |
| Technical memo discussing engine noise issues related to tappets and cam design. | 11th May 1932 | Box 178 \ 3 img165 | |
| Valve lift, noise, and ideas for automatic adjustment mechanisms, including an oil-based temperature regulation system. | 7th Sep 1924 | Box 178 \ 3 img166 | |
| Issues with rocker shafts, clutch performance, and crankshaft dampers. | 29th Dec 1932 | Box 178 \ 3 img167 | |
| Analysis of damper wheel mechanics, friction, and lubrication, including design notes and a component sketch. | 29th Dec 1932 | Box 178 \ 3 img168 | |
| Design proposal for a more economical shaft for the Gosport & Peregrine gearbox reverse. | 11th May 1932 | Box 178 \ 3 img169 | |
| Instrument board and chassis specifications for the left-hand drive car body 2-J. 3. | 18th May 1932 | Box 178 \ 3 img170 | |
| 'Bensport' chassis layouts and component design instructions, referencing the 'Peregrine' model. | 19th May 1932 | Box 178 \ 3 img171 | |
| Bensport frame and transmission layout, with comparisons to the Peregrine model. | 5th Oct 1910 | Box 178 \ 3 img172 | |
| Reverse pinion and jaw clutch design for Bensport and other gearboxes, including a suggested design diagram. | 11th May 1932 | Box 178 \ 3 img173 | |
| Agreeing to adjust the gear lever mechanism and discussing front cushion dimensions for various steering types. | 25th May 1938 | Box 178 \ 3 img174 | |
| Causes and potential solutions for transmission rattle. | 24th May 1932 | Box 178 \ 3 img175 | |
| Practice of pinning piston rings for aero and car engines and a proposal to change it. | 5th May 1932 | Box 178 \ 3 img176 | |
| Road test report and specification sheet for an Alvis 'Speed Twenty' car. | 24th May 1932 | Box 178 \ 3 img177 | |
| Performance review of an unspecified car, detailing its handling, mechanics and comparing it to a Bentley. | 24th May 1932 | Box 178 \ 3 img178 | |
| Comparison of an Alvis car with a proposed Bentley, noting the Alvis is the best of its type tested. | 28th May 1932 | Box 178 \ 3 img179 | |
| Design considerations for a 2nd compression ignition test unit, including crankshaft, bore, stroke, and bearings. | 28th May 1932 | Box 178 \ 3 img180 | |
| Various engine design considerations, including cylinder layout, valve types, combustion chambers, and supercharging. | 14th May 1924 | Box 178 \ 3 img181 | |
| The accessories to be supplied to the coachbuilder and required for mounting the body for car 2-J. 3. | 25th May 1932 | Box 178 \ 3 img182 | |
| The accessories required for the Peregrine Ist Body, for both the coachbuilders and for mounting at Derby. | 25th May 1932 | Box 178 \ 3 img183 | |
| Engine and clutch design for the 'Bensport' car model. | 28th May 1932 | Box 178 \ 3 img184 | |
| Design memorandum discussing modifications to the gearbox, back axle, and brake systems. | 30th Nov 1936 | Box 178 \ 3 img185 | |
| Pedal adjustment, floorboards, the Peregrine engine, and the necessity of a cooling fan for a sporting model. | 30th May 1932 | Box 178 \ 3 img186 | |
| Slackness of a Woodruff key and proposing alternative pin or bolt solutions for an S.M. Gearbox. | 30th May 1932 | Box 178 \ 3 img187 | |
| Use of a Peregrine axle on the Bensport front axle, its associated issues and proposed solutions. | 30th May 1932 | Box 178 \ 3 img188 | |
| Design options for Bentley exhaust valves and pipes, referencing sketches and the Silver Ghost. | 30th May 1932 | Box 178 \ 3 img189 | |
| Problem of 'creeping gears' in gearboxes and potential solutions. | 30th May 1932 | Box 178 \ 3 img190 | |
| Ignition experiments for a 25HP engine, focusing on distributor and spark plug performance. | 30th May 1932 | Box 178 \ 3 img191 | |
| Carburettor performance, design modifications, and adoption for specific car models. | 30th May 1932 | Box 178 \ 3 img192 | |
| System of splitting crankshaft balance weights, proposing investigation and a possible patent. | 30th May 1932 | Box 178 \ 3 img193 | |
| Combination of parts for a steering system and the implications of friction and damping. | 30th May 1932 | Box 178 \ 3 img194 | |
| Spiral angle of a gear to address a sideshaft failure and reduce mechanical stresses. | 30th May 1932 | Box 178 \ 3 img195 | |
| Suggestions for engine head design and gearbox work for various projects. | 21th May 1932 | Box 178 \ 3 img196 | |
| Design considerations for valves, passages, a supercharger pipe, and the Powerplus blower for project Det. 3115. | 21th Jun 1932 | Box 178 \ 3 img197 | |
| Recommending an experimental trial for a shock damper control system using a centrifugal governor. | 1st May 1932 | Box 178 \ 3 img198 | |
| Cause of a broken gear and clarifying departmental responsibilities for design and testing. | 1st Jun 1932 | Box 178 \ 3 img199 | |
| Design, configuration and fitting of the Bensport (Bentley 'B' model) radiator and bonnet. | 13th Jun 1932 | Box 178 \ 3 img200 | |
| Design considerations for aero engines, including piston rings, liners, and cylinder block construction. | 6th Jun 1932 | Box 178 \ 3 img201 | |
| Compression ignition engine development, outlining proposals and comparing different cylinder head designs and experimental units. | 6th Jun 1932 | Box 178 \ 3 img202 | |
| Feasibility and technical requirements for Ricardo single sleeve and opposed piston engine designs. | 4th Jun 1932 | Box 178 \ 3 img203 | |
| Schemes for shock dampers with automatic control and related modifications. | 4th Jun 1932 | Box 178 \ 3 img204 | |
| Request to borrow a 20/25 steering wheel worm shaft to fit a model steering column to a dummy chassis for checking front seat height. | 4th Jun 1932 | Box 178 \ 3 img205 | |
| Inspection of a luggage grid and apron on car 1-J.3 before the Sales department inspects it. | 4th Jun 1932 | Box 178 \ 3 img206 | |
| Engine progress, head modification for better cooling, and gearbox development for the Bensport. | 4th Jun 1932 | Box 178 \ 3 img207 | |
| Strength of helical gears in S.M. gearboxes and the effect of increasing the helical angle. | 4th Jun 1932 | Box 178 \ 3 img208 | |
| Proposed torsionally flexible joint for a 25HP transmission and clutch. | 24th Jun 1932 | Box 178 \ 3 img209 | |
| Design, performance and issues with ignition contacts, specifically regarding ballast resistance and condensers. | 4th Jun 1932 | Box 178 \ 3 img210 | |
| Sizing, material, and tightening of Peregrine & Bensport cylinder head studs. | 6th Jun 1932 | Box 178 \ 3 img211 | |
| Options for a torsionally flexible joint in a transmission. | 7th Jun 1932 | Box 178 \ 3 img212 | |
| Materials, lubrication, and testing for crankshaft dampers. | 8th Jun 1932 | Box 178 \ 3 img213 | |
| Compression ignition engine design, comparing it with Beardmore's catalogue, and weighing the trade-offs between performance and economy. | 1st Jun 1932 | Box 178 \ 3 img214 | |
| 4-cycle supercharged engine improvements and the importance of communicating with the Air Ministry. | 8th Jun 1932 | Box 178 \ 3 img215 | |
| Arranging a meeting for Mr. Underwood to present compression ignition drawings. | 8th Jun 1932 | Box 178 \ 3 img216 | |
| Design schemes for Sports Saloon and Sports Open Tourer bodies on Bensport chassis. | 9th Jun 1932 | Box 178 \ 3 img217 | |
| Testing a 25HP Hardy fabric coupling behind a gearbox to eliminate 'Coronation Rattle'. | 29th Jun 1932 | Box 178 \ 3 img218 | |
| Scuttle isolation for Bensport, referencing scheme 3486. | 29th Jun 1932 | Box 178 \ 3 img219 | |
| Accompanying a schedule showing wheel arch clearances for Bensport. | 9th Jun 1932 | Box 178 \ 3 img220 | |
| Chassis component modifications for the Bensport Saloon. | 29th Jun 1932 | Box 178 \ 3 img221 | |
| Paint finishes for wire wheels and the issues associated with using wheel discs. | 19th Jun 1932 | Box 178 \ 3 img222 | |
| Bamford Multi Plate Clutch, referencing an obsolete drawing and detailing design modifications. | 11th Jun 1932 | Box 178 \ 3 img223 | |
| List confirming instructions received from Derby for seventeen different vehicle sections and components. | 13th Jun 1922 | Box 178 \ 3 img224 | |
| Progress report listing sections available, sections held up due to lack of information, and sections held up for want of a ruling. | 14th Jun 1932 | Box 178 \ 3 img225 | |
| Outlining five points of consideration regarding the Bensport and Peregrine starter motors. | 14th Jun 1932 | Box 178 \ 3 img226 | |
| Design considerations for C.I. engines and the future of diesel-electric locomotives. | 14th Jun 1932 | Box 178 \ 3 img227 | |
| Evaluating a semi-expanding carburetter against existing designs. | 15th Jun 1932 | Box 178 \ 3 img228 | |
| Experiments and potential new designs for crankshaft dampers, including friction materials and centrifugal loading. | 18th Jun 1932 | Box 178 \ 3 img229 | |
| The trial of a new Peregrine & Bensport cylinder head. | 15th Jun 1932 | Box 178 \ 3 img230 | |
| Design decisions for the Bensport engine, including blowers, drives, and supports. | 15th Jun 1932 | Box 178 \ 3 img231 | |
| Design decisions for the radiator, carburetter, and front axle for Bensport and Peregrine models. | 16th Jun 1932 | Box 178 \ 3 img232 | |
| Confirming an agreement to raise the front end of the Bensport steering column and asking for confirmation it does not interfere with the inlet pipe. | 16th Jun 1932 | Box 178 \ 3 img233 | |
| Bensport front brake cables, their position, and clearance for carburettor parts. | 16th Jun 1932 | Box 178 \ 3 img234 | |
| Collection and fitting of a 4-door saloon Peregrine body, also known as Bentley 'A'. | 16th Jun 1932 | Box 178 \ 3 img235 | |
| Record of a telephone conversation discussing design proposals for the Bensport engine. | 17th Jun 1922 | Box 178 \ 3 img236 | |
| Design considerations for an engine, including auxiliary drives, superchargers, and dampers. | 31th Mar 1940 | Box 178 \ 3 img237 | |
| Sourcing vehicle accessories, ignition systems, and starters, weighing options from different suppliers. | 17th Jun 1932 | Box 178 \ 3 img238 | |
| Modification to the Brampton clutch for providing an oil drain and methods for locking the ball bearing retaining nut. | 17th Jun 1932 | Box 178 \ 3 img239 | |
| Alternative schemes for supporting the Beresford Engine, proposing a simpler method than the current one. | 13th Jun 1932 | Box 178 \ 3 img240 | |
| Camshaft over-running issues and potential solutions for the Bensport engine. | 21th Jun 1932 | Box 178 \ 3 img241 | |
| Slight design changes to the Bentley 'B' model bonnet and radiator following a model viewing at Park Wards. | 21th Jun 1932 | Box 178 \ 3 img242 | |
| Testing clutches to determine the cause of friction loss, possibly due to serrations locking up on the Phantom model. | 21th Jun 1932 | Box 178 \ 3 img243 | |
| New telephone extension from Sir Henry Royce's house to the drawing office at 'Camacha'. | 21th Jun 1932 | Box 178 \ 3 img244 | |
| Design changes to the Bensport engine, focusing on supercharger placement and cylinder head configuration. | 22th Jun 1932 | Box 178 \ 3 img245 | |
| Design of a 25HP reverse gear, including bearing arrangements and material choices. | 23th Jun 1932 | Box 178 \ 3 img246 | |
| Comparing the performance and features of cars 19-EX and J.3, with a focus on suspension. | 24th Jun 1932 | Box 178 \ 3 img247 | |
| Criticisms and proposed modifications for the gear control system on several car models. | 25th Jun 1932 | Box 178 \ 3 img248 | |
| Steering column and wheel specifications for the Bensport model. | 27th Jun 1932 | Box 178 \ 3 img249 | |
| Confirmation of a phone conversation regarding modifications to the Bensport engine, including crankshaft adjustments and supercharger placement. | 27th Jun 1932 | Box 178 \ 3 img250 | |
| The arrangement of engine components including pumps, ignition, gearbox, and supercharger. | 10th Apr 1934 | Box 178 \ 3 img251 | |
| Design delays and knock-on effects caused by repositioning the supercharger on the Bensport chassis. | 29th Jun 1932 | Box 178 \ 3 img252 | |
| Design choices for the Bensport model, including controls, mascot, and filler cap, with references to Bentley and Peregrine ll parts. | 29th Jun 1932 | Box 178 \ 3 img253 | |
| Explaining a delay on the Peregrine body project due to a backlog of customer orders and clarifying lorry transport logistics. | 29th Jun 1932 | Box 178 \ 3 img254 | |
| Fitting of bodies for the Peregrine II and J.111 chassis. | 29th Jun 1932 | Box 178 \ 3 img255 | |
| Placement of the numberplate and tail lamp on Phantom models carrying two spare wheels at the rear. | 29th Jun 1932 | Box 178 \ 3 img256 | |
| Weight of the coachwork for the Peregrine / 'Bentley A' 4 door saloon. | 2nd Jul 1932 | Box 178 \ 3 img257 | |
| Requesting a report on the condition of a received P.2 clutch disc. | 5th Jul 1932 | Box 178 \ 3 img258 | |
| Request for a working specimen of steering column controls for modification to meet company standards. | 5th Jul 1932 | Box 178 \ 3 img259 | |
| Potential improvements and modifications to clutch designs. | 5th Jul 1932 | Box 178 \ 3 img260 | |
| Gear ratio compromises for a damper speed control unit on the Bensport gearbox speedometer drive. | 1st Jul 1932 | Box 178 \ 3 img261 | |
| Design updates and solutions for the Bensport engine, focusing on the supercharger, crankshaft, pistons, and flywheel. | 7th Jul 1932 | Box 178 \ 3 img262 | |
| | | | |
