| Description | Date | Identifier | |
| Design modifications for the Peregrine propeller shaft and its sliding joint. | 1st Feb 1933 | Box 179b \ 1 img300 | |
| Design and fixing of shock dampers, specifically the square levers and shaft connection. | 1st Feb 1933 | Box 179b \ 1 img301 | |
| Potential simplifications and design improvements for aero engines, including controls and connecting rods. | 1st Feb 1932 | Box 179b \ 1 img302 | |
| American piston design, evaporative cooling, special aviation fuel, and engine power ratings. | 1st Feb 1933 | Box 179b \ 1 img303 | |
| Rough sketch for a Bensport 100 M.P.H. car. | 1st Feb 1933 | Box 179b \ 1 img304 | |
| Blueprint of a proposed 100 MPH Bentley. | 11th Apr 1933 | Box 179b \ 1 img305 | |
| Sourcing and design of Lucas lamps for Peregrine and Bensport models, including a proposal to modify an existing lamp. | 2nd Feb 1933 | Box 179b \ 1 img306 | |
| The design, cost, and supply of a luggage grid for the Peregrine model. | 2nd Feb 1933 | Box 179b \ 1 img307 | |
| Proposed changes to the Bensport brake linkage layout and pedal shaft bosses. | 2nd Feb 1933 | Box 179b \ 1 img308 | |
| New damped flexible drive for incorporation into the clutch. | 2nd Feb 1933 | Box 179b \ 1 img309 | |
| Aero engine connecting rod failures and comparing blade versus articulated rod designs. | 3rd Feb 1933 | Box 179b \ 1 img310 | |
| Engine failure analysis, vibration reduction, and material considerations for components like crankshafts and rods. | 4th Feb 1933 | Box 179b \ 1 img311 | |
| Design for a hand-operated valve for varying the damping on the Phantom model. | 4th Feb 1933 | Box 179b \ 1 img312 | |
| Phone message compilation discussing the failure of aero connecting rods and potential solutions. | 1st Feb 1933 | Box 179b \ 1 img313 | |
| Performance of fork and blade versus articulated connecting rods for the 'Eagle' engine. | 6th Feb 1933 | Box 179b \ 1 img314 | |
| Confirmation of a phone message detailing testing procedures for Kestrel connecting rods. | 6th Feb 1933 | Box 179b \ 1 img315 | |
| The damper governor unit and connections for a 20/25 chassis. | 7th Feb 1923 | Box 179b \ 1 img316 | |
| Design modifications to the shock damper lever and a new casting for the damper body. | 1st Jul 1934 | Box 179b \ 1 img317 | |
| Automatic shock damper control and desired relief valve settings. | 8th Feb 1933 | Box 179b \ 1 img318 | |
| Confirmation of a phone message regarding crankpin oil supply and oil groove arrangements for aero engines. | 9th Feb 1933 | Box 179b \ 1 img319 | |
| Modifications to the propeller shaft and gearbox for improved lubrication and oil retention. | 11th Feb 1933 | Box 179b \ 1 img320 | |
| Confirmation of a phone message to Derby regarding improvements to aero engines. | 17th Feb 1933 | Box 179b \ 1 img321 | |
| Modification for the Peregrine steering column to prevent interference with the pedal assembly. | 23th Feb 1940 | Box 179b \ 1 img322 | |
| Confirmation of a phone message to Derby regarding issues and improvements for Aero Engines. | 16th Feb 1937 | Box 179b \ 1 img323 | |
| Page discussing design considerations for exhaust valves, piston pins, and supercharger intake vanes. | 16th Feb 1937 | Box 179b \ 1 img324 | |
| Design and implementation of a new, larger 22-gallon petrol tank for the Bentley 'B' 4 model. | 16th Feb 1937 | Box 179b \ 1 img325 | |
| Potential application of asbestos spraying to car body panels by the 'Limpet' company. | 17th Feb 1933 | Box 179b \ 1 img326 | |
| In-house manufacturing of sheet metal wheel arches for the Pere.2 model. | 17th Feb 1933 | Box 179b \ 1 img327 | |
| Suggestions for a central instrument board panel common to RR and Bentley cars. | 18th Feb 1937 | Box 179b \ 1 img328 | |
| Design points for an instrument panel, including switch placement, materials, and component selection. | 18th Feb 1937 | Box 179b \ 1 img329 | |
| Combined speedometer and tachometer unit and a single speedometer for various car models. | 1st Feb 1933 | Box 179b \ 1 img330 | |
| Clarifying the classification and nomenclature for four different Bentley/Bensport chassis models. | 1st Feb 1933 | Box 179b \ 1 img331 | |
| Experimental features fitted to a car, including the crankshaft, cylinder head, carburetors, air silencer, and fuel system. | 1st May 1932 | Box 179b \ 1 img332 | |
| Information extracted from remarks about the control and design of the proposed 40/50 epicyclic gearbox. | 28th Feb 1933 | Box 179b \ 1 img333 | |
| Two proposed drive types, a central torsion shaft and Bibby plate springs, for a Peregrine clutch with damped spring drive. | 28th Feb 1933 | Box 179b \ 1 img334 | |
| Redesign of a car's main electrical switch, its locking mechanism, and a proposed 6-position wiring scheme. | 1st Mar 1933 | Box 179b \ 1 img335 | |
| Merits of different carbon brushes and control systems for car dynamos. | 1st Mar 1933 | Box 179b \ 1 img336 | |
| With a diagram discussing modifications to coupling teeth for the silent second speed. | 23th Feb 1933 | Box 179b \ 1 img337 | |
| Future aero engine development, proposing a smaller, lighter engine over an inverted or intermediate-sized one. | 24th Feb 1933 | Box 179b \ 1 img338 | |
| Disapproval of Skefco type swivel bearings and listing preferred alternative bearing types. | 24th Feb 1937 | Box 179b \ 1 img339 | |
| Modifications to the Kestrel aero engine's exhaust valves. | 24th Feb 1933 | Box 179b \ 1 img340 | |
| Proposed new switchbox and the universal adoption of vibrator control for the dynamo. | 28th Feb 1933 | Box 179b \ 1 img341 | |
| Features and advantages of a double-entry blower supercharger compared to a single-sided rotor. | 28th Mar 1933 | Box 179b \ 1 img342 | |
| Modifications to a hand control valve for a damper to increase operating lever travel. | 25th Feb 1932 | Box 179b \ 1 img343 | |
| Modifications to the Peregrine propeller shaft, gearbox, and splines. | 25th Feb 1933 | Box 179b \ 1 img344 | |
| Design, capacity, and potential modifications of a larger petrol tank for the Bensport model. | 2nd Mar 1933 | Box 179b \ 1 img345 | |
| Suitability and fitting challenges of Lucas and Klaxon windscreen wipers. | 3rd Mar 1933 | Box 179b \ 1 img346 | |
| Supplier relationships and quality issues with lamp manufacturers Lucas and Butlers. | 3rd Mar 1933 | Box 179b \ 1 img347 | |
| Response to a test report on the B.4 model in France, addressing eight specific body criticisms. | 3rd Mar 1933 | Box 179b \ 1 img348 | |
| Design and functionality of a multi-position electrical switch. | 14th Mar 1933 | Box 179b \ 1 img349 | |
| Technical discussion on the design considerations for an electrical switch, comparing different types and materials. | 14th Mar 1933 | Box 179b \ 1 img350 | |
| Design sketch for a three-post electrical component, likely a switch or connector for lamps. | 10th Mar 1933 | Box 179b \ 1 img351 | |
| Gearbox shaft whirling issues and clutch design improvements for the Peregrine model. | 10th Mar 1933 | Box 179b \ 1 img352 | |
| New friction damped driving shaft, brake issues, petrol consumption, and defective Lucas parts. | 14th Mar 1933 | Box 179b \ 1 img353 | |
| Dynamo performance, focusing on series winding, commutator sparking, and potential improvements. | 14th Mar 1933 | Box 179b \ 1 img354 | |
| Starter motor windings, stalling torque, and comparing a taper armature design to a Bosch design. | 10th Mar 1933 | Box 179b \ 1 img355 | |
| On Bensport clutch operation, suggesting changes to the levers to prevent engine rocking. | 15th Mar 1933 | Box 179b \ 1 img356 | |
| Design and construction of the radiator grill and apron for Bensport. | 16th Mar 1935 | Box 179b \ 1 img357 | |
| Recession of the control sylphon for dampers. | 16th Mar 1933 | Box 179b \ 1 img358 | |
| Fitting of a radiator grill for a 3.4L Bensport model without shutters. | 20th Mar 1933 | Box 179b \ 1 img359 | |
| Relocation of the luggage carrier and petrol tank filler to accommodate a longer body. | 22th Mar 1933 | Box 179b \ 1 img360 | |
| Observations and proposed modifications for Peregrine J. 3 Type damper bodies. | 27th Mar 1933 | Box 179b \ 1 img361 | |
| Requesting a test on a gear type pump for a proposed epicyclic gearbox. | 27th Mar 1933 | Box 179b \ 1 img362 | |
| Instructing a trial for a non-return valve with restriction for dampers, concerning the recession of the sylphon. | 27th Mar 1933 | Box 179b \ 1 img363 | |
| Modifications to the change gear lever to prevent rattles and improve functionality. | 28th Mar 1933 | Box 179b \ 1 img364 | |
| Design for fool-proof and reliable switches, covering contacts, handles, and positions for lighting and ignition. | 4th Apr 1933 | Box 179b \ 1 img365 | |
| The investigation into engine failures on the 'Miss England III' boat. | 1st Oct 1932 | Box 179b \ 2 img001 | |
| Engine failure, speculating on the cause being oil temperature and a damaged supercharger from rough water operation. | 1st Oct 1932 | Box 179b \ 2 img002 | |
| Braking system for the Bensport car and the potential need for a servo. | 1st Oct 1932 | Box 179b \ 2 img003 | |
| Improving low-speed acceleration using turbulent heads and addressing engine detonation in the Peregrine model. | 3rd Oct 1932 | Box 179b \ 2 img004 | |
| Series of graphs comparing the useful BMEP of 'Japan I' and 'Peregrine' engines against RPM, focusing on performance with and without detonation. | 4th Oct 1932 | Box 179b \ 2 img005 | |
| Unsatisfactory performance of direct-action brakes compared to servo-operated systems on various cars. | 4th Oct 1932 | Box 179b \ 2 img006 | |
| Difficulty with single valve hydraulic shock absorbers due to temperature-induced changes in oil resistance. | 4th Oct 1932 | Box 179b \ 2 img007 | |
| Testing report for the R.37 engine used in Sir Malcolm Campbell's 'Bluebird' record car. | 5th Oct 1932 | Box 179b \ 2 img008 | |
| Method to overcome power reading difficulties during engine testing by running without reduction gears. | 5th Oct 1932 | Box 179b \ 2 img009 | |
| Technical report detailing endurance testing, final jet settings, and post-test examination of an engine. | 5th Oct 1932 | Box 179b \ 2 img010 | |
| Graph of estimated power and specific fuel consumption for the 'R' engine for the Bluebird-R37. | 5th Oct 1932 | Box 179b \ 2 img011 | |
| Supercharger development, testing a Powerplus blower and investigating Rootes blowers. | 7th Oct 1932 | Box 179b \ 2 img012 | |
| Tests carried out to determine the efficiency of the Peregrine brake linkage. | 14th Oct 1932 | Box 179b \ 2 img013 | |
| Data table showing Peregrine brake linkage efficiency test results. | 14th Oct 1932 | Box 179b \ 2 img014 | |
| Data table comparing theoretical and actual performance and efficiency of the pedal cross shaft, rear brake equalizer, and front brake equalizer. | 17th Oct 1932 | Box 179b \ 2 img015 | |
| Endurance test and subsequent failure of a No.10 Powerplus blower. | 17th Oct 1932 | Box 179b \ 2 img016 | |
| Endurance test report on an oil pump and blower, detailing a seizure failure and subsequent analysis. | 17th Nov 1932 | Box 179b \ 2 img017 | |
| Blower noise, design balance, and a proposed test using an exhaust silencer. | 17th Oct 1932 | Box 179b \ 2 img018 | |
| Flight consumption tests for the Kestrel engine at various altitudes. | 17th Oct 1932 | Box 179b \ 2 img019 | |
| Graph detailing flight consumption tests on a 3F Kestrel 'S' engine at 2000 RPM. | 19th May 1931 | Box 179b \ 2 img020 | |
| Graph showing maximum economy test results for a Kestrel fully supercharged engine in a Fairey III F aircraft at 10,000 ft. | 30th Sep 1932 | Box 179b \ 2 img021 | |
| Diagrammatic sketch of a Fairey '3F' fuel system. | 15th Nov 1927 | Box 179b \ 2 img022 | |
| Completion of tests on a resonance silencer for the 20/25 HP car, outlining modifications and results. | 19th Oct 1932 | Box 179b \ 2 img023 | |
| Comparison of exhaust system configurations focusing on swan neck pipe diameters and resonance silencers to manage power loss and back pressure. | 12th Oct 1932 | Box 179b \ 2 img024 | |
| Performance graph comparing power loss, back pressure and B.H.P for open exhaust, resonance silencer, and standard silencer configurations on a 20/25 HP engine. | 12th Oct 1932 | Box 179b \ 2 img025 | |
| Performance graph showing the effect of swan neck diameter on a 20/25 HP resonance silencer. | 12th Oct 1932 | Box 179b \ 2 img026 | |
| Graph comparing back pressure in different silencer configurations against engine RPM. | 10th Oct 1932 | Box 179b \ 2 img027 | |
| Blueprint showing modifications to a resonance silencer for a 20/25 HP model. | 10th Oct 1932 | Box 179b \ 2 img028 | |
| Outlining modifications to improve the slow running speed of Kestrel Supercharged engines for float planes. | 19th Oct 1932 | Box 179b \ 2 img029 | |
| Instructions and test results for a modified slow running scheme, focusing on throttle adjustments and performance. | 19th Oct 1932 | Box 179b \ 2 img030 | |
| Engine slow running performance ('tick over') and proposed modifications for Air Ministry approval. | 19th Oct 1932 | Box 179b \ 2 img031 | |
| Blueprint for a Slow Running Air Tube for a Kestrel S engine. | 20th Oct 1932 | Box 179b \ 2 img032 | |
| Blueprint for a modified slow running jet for a Kestrel S engine, made of brass. | 20th Oct 1932 | Box 179b \ 2 img033 | |
| Blueprint for a plug for the end of a slow running air tube. | 20th Oct 1937 | Box 179b \ 2 img034 | |
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