| Description | Date | Identifier | |
| Performance comparison graph between a 1760cc Alfa Romeo engine and a 2364cc Peregrine engine. | 28th Jul 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page208 | |
| Two high-speed oil consumption runs for a Peregrine Power Unit, noting an inlet valve spring failure. | 28th Jul 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page209 | |
| The results of two tests on a Peregrine cylinder head, comparing standard inlet valves with larger ones. | 29th Jul 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page210 | |
| Performance graph comparing small versus large valves for the Peregrine engine, showing B.HP and B.M.E.P. against R.P.M. | 29th Jul 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page211 | |
| Performance comparison graph of a Supercharged Peregrine engine, testing small versus large inlet valves. | 8th Aug 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page212 | |
| Tests on the correct ignition advance for the Peregrine engine at various speeds. | 8th Aug 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page213 | |
| Graph showing the required ignition advance against R.P.M. for the Peregrine engine. | 10th Aug 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page214 | |
| Confirming an agreement for further tests on the Peregrine engine's ignition advance with an improved camshaft. | 10th Aug 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page215 | |
| Blueprint graph showing ignition advance curves for the Peregrine engine. | 10th Aug 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page216 | |
| Speed and handling tests conducted on three cars at the Brooklands track. | 21th Sep 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page217 | |
| The Peregrine unit bench tests, focusing on the unsupercharged engine's power, reliability, ignition, and servo performance. | 23th Sep 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page218 | |
| Supercharger tests for the 'K' engine, detailing issues with cylinder gaskets and boost temperatures. | 23th Feb 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page219 | |
| Peregrine supercharged power curve for a No. 10 Blower. | 2nd Jul 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page220 | |
| Engine performance relating to turbulent cylinder heads and low-speed acceleration. | 3rd Oct 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page221 | |
| Set of three graphs comparing the Useful Brake Mean Effective Pressure (BMEP) of the Japan I and Peregrine engines. | 5th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page222 | |
| The Peregrine engine's oil temperature during a run from Derby to London, compared with test bed results. | 5th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page223 | |
| Progress report on the development of the Peregrine power unit, detailing mechanical reliability, lubrication, and crankshaft damper performance. | 14th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page224 | |
| The performance of 14 M.M. plugs, a semi-expanding carburettor, pistons, and a turbulent cylinder head. | 14th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page225 | |
| Camshaft modifications and general power improvement progress for the Peregrine engine. | 14th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page226 | |
| Photograph showing two different types of engine valves. | 4th Oct 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page227 | |
| Performance graph comparing stiff and flexible pistons on a Peregrine engine. | 4th Oct 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page228 | |
| Performance comparison graph between S.U. and R.R. carburettors, plotting Brake Horsepower (BHP) and Brake Mean Effective Pressure (BMEP) against engine Revolutions Per Minute (RPM). | 4th Oct 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page229 | |
| Performance comparison graph for Turbulent and Standard cylinder heads on a Peregrine engine. | 4th Oct 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page230 | |
| Performance graph comparing different configurations of the Peregrine engine at low speed. | 4th Oct 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page231 | |
| Graph comparing power output with a 5.25 compression ratio under different carburettor and intake configurations. | 16th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page232 | |
| Moment of inertia tests for a Peregrine connecting rod and piston assembly. | 16th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page233 | |
| Torsion and tensile test results for a Peregrine connecting rod and piston assembly. | 14th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page234 | |
| Development of the Peregrine car unit, focusing on valve and crankshaft damper design. | 18th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page235 | |
| Clutch action, crankshaft damper performance, and a proposed modification to the front engine suspension. | 21th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page236 | |
| Recommendation to alter the ignition control leverages on the Peregrine car to provide a more reasonable result. | 21th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page237 | |
| Adjustments to the Peregrine engine ignition advance timing and governor curve. | 22th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page238 | |
| Requesting information on Peregrine units. | 23th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page239 | |
| Outlining five points for engine testing and performance analysis. | 23th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page240 | |
| Peregrine engine power output, comparing carburettor and valve configurations. | 30th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page241 | |
| Performance graph comparing large versus small valves in a turbulent head engine. | 29th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page242 | |
| Performance comparison graph of a Semi Expanding carburettor versus a 5/8 inch S.U. carburettor on a turbulent head engine. | 29th Nov 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page243 | |
| The Peregrine engine's fuel consumption, power, and potential improvements to valve timing. | 9th Dec 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page244 | |
| The Peregrine III car road tests, detailing performance on severe hills, brake issues, and other minor faults. | 8th Dec 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page245 | |
| Ignition advance curves for a Peregrine Nº 5 Unit engine test. | 22th Dec 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page246 | |
| Ignition advance curves for the Peregrine engine and modifications to the governor. | 29th Dec 1932 | Box 1 \ 8 B001_X100 Engine Chassis-page247 | |
| Oil consumption of the Peregrine engine. | 9th Mar 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page248 | |
| Results of an oil and petrol consumption test for the Peregrine. | 13th Mar 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page249 | |
| Petrol consumption test results for Twin S.U. carburettors under high-speed conditions. | 22th Mar 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page250 | |
| Petrol consumption test, noting failures of the rear shock damper brackets and petrol pump. | 11th Mar 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page251 | |
| Oil consumption test results for PER.II. NO.5. | 10th Mar 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page252 | |
| Comparative consumption tests taken before and after fitting new piston rings. | 31th Mar 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page253 | |
| Road test comparison of old versus new experimental piston rings focusing on fuel and oil consumption. | 1st Apr 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page254 | |
| Oil consumption figures following the fitting of new piston rings and a subsequent test after they had bedded in. | 4th Apr 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page255 | |
| Petrol consumption test results for twin S.U. carburetors with No.5 needles under high-speed conditions. | 22th Mar 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page256 | |
| Petrol consumption test and resulting mechanical failures. | 11th Mar 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page257 | |
| Oil consumption test results for PER.II. NO.5 at various speeds. | 10th Mar 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page258 | |
| Road test report on a Peregrine engine, detailing the results of using modified scraper rings to improve mileage per gallon. | 5th Apr 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page259 | |
| Blueprint showing dimensions for two similar ring-like components. | 19th Apr 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page260 | |
| Petrol consumption for the 5.PER.II model over a specific route. | 19th Apr 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page261 | |
| Fuel and oil consumption report for a trip to West-Wittering and return. | 25th Apr 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page262 | |
| Report comparing petrol and oil consumption tests between two specifications over a 160-mile distance. | 9th May 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page263 | |
| Petrol consumption tests comparing S.U. carburettors with R.R. Semi-expanding carburettors. | 15th May 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page264 | |
| Results of the 2nd, 3rd, and 4th performance tests on a vehicle with varying carburettor setups. | 15th May 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page265 | |
| Comparison of petrol consumption between cars fitted with Twin S.U. Carbs and Small P.II. type carbs. | 15th May 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page266 | |
| Petrol consumption tests comparing S.U. and R.R. semi-expanding carburettors on two different car models. | 15th May 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page267 | |
| Performance test results comparing different carburettor configurations and routes. | 15th May 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page268 | |
| Comparison of petrol consumption between two different carburettor configurations. | 19th May 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page269 | |
| Experimental 'Peregrine Floating Power' engine suspension rig-up. | 19th May 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page270 | |
| Camshaft tests for slow running on the Peregrine engine. | 21th Jun 1933 | Box 1 \ 8 B001_X100 Engine Chassis-page271 | |
| Performance comparison graph of a 110° shaft for improved slow running versus a normal 107° shaft. | 1st Jan 1939 | Box 1 \ 8 B001_X100 Engine Chassis-page272 | |
| Performance comparison graph of a 110° shaft versus a normal 107° shaft, showing B.HP and B.M.E.P. curves. | 1st Jan 1940 | Box 1 \ 8 B001_X100 Engine Chassis-page273 | |
| Performance graph comparing an extra short duration camshaft (HS.968) with a standard 107° camshaft for slow running. | 9th May 1935 | Box 1 \ 8 B001_X100 Engine Chassis-page274 | |
| Table detailing the specifications of various car engines. | 9th May 1935 | Box 1 \ 8 B001_X100 Engine Chassis-page275 | |
| List of components and missing parts for a Peregrine Engine at Shardlow. | 6th Jul 1935 | Box 1 \ 8 B001_X100 Engine Chassis-page276 | |
| Request to make the Peregrine chassis at Shardlow runnable for brake drum cooling tests. | 6th Jul 1935 | Box 1 \ 8 B001_X100 Engine Chassis-page277 | |
| Cover or divider page with the handwritten number '101.'. | 13th Aug 1932 | Box 1 \ 9 B001_X101TO X102-page1 | |
| Clarifying the design assumptions for the Peregrine Front Axle Control. | 13th Aug 1932 | Box 1 \ 9 B001_X101TO X102-page2 | |
| Drawing for the Peregrine front axle control. | 15th Aug 1932 | Box 1 \ 9 B001_X101TO X102-page3 | |
| The correct pivot lean for the Peregrine and the necessary modification to the axle control. | 14th Oct 1932 | Box 1 \ 9 B001_X101TO X102-page4 | |
| Modification to top ball pads in the anchorage bracket for the Peregrine II chassis. | 30th Dec 1932 | Box 1 \ 9 B001_X101TO X102-page5 | |
| Adaptation of the 25HP front axle control to use a 3-bolter shock damper following a 10,000-mile test. | 14th Jan 1933 | Box 1 \ 9 B001_X101TO X102-page6 | |
| Modifications to the Peregrine & Bensport front axle. | 4th Mar 1933 | Box 1 \ 9 B001_X101TO X102-page7 | |
| Cover or divider page with a handwritten number. | 20th Aug 1932 | Box 1 \ 9 B001_X101TO X102-page8 | |
| Modifications for the Peregrine and Bensport rear axles, including new hypoid gear ratios. | 20th Aug 1932 | Box 1 \ 9 B001_X101TO X102-page9 | |
| Brake area and weights of the Peregrine model, comparing it to the 25hp model and suggesting an increase in rear drum width. | 19th Aug 1932 | Box 1 \ 10 B001_X106 TO X 110-page001 | |
| On brake and servo calculations and test results for the Peregrine chassis. | 25th Aug 1932 | Box 1 \ 10 B001_X106 TO X 110-page002 | |
| Series of four graphs showing the results of Peregrine servo efficiency tests on front and rear brakes under various conditions. | 25th Aug 1932 | Box 1 \ 10 B001_X106 TO X 110-page003 | |
| Blueprint analyzing the Peregrine brake system, detailing servo torque multiplication with a diagram, data table, and performance graph. | 8th Sep 1932 | Box 1 \ 10 B001_X106 TO X 110-page004 | |
| Technical memorandum discussing issues with violent front braking on Peregrine brakes and proposed solutions. | 8th Sep 1932 | Box 1 \ 10 B001_X106 TO X 110-page005 | |
| Blueprint detailing the calculations and performance graph for the Peregrine Brakes system. | 2nd Mar 1930 | Box 1 \ 10 B001_X106 TO X 110-page006 | |
| Tests to determine the efficiency of the Peregrine brake linkage. | 14th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page007 | |
| Table detailing theoretical and actual Peregrine brake linkage efficiency. | 14th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page008 | |
| Data sheet detailing the efficiency calculations for the pedal cross shaft, and rear and front brake equalizers. | 2nd Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page009 | |
| The inefficiency of Peregrine brakes, comparing servo performance and recommending design changes. | 2nd Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page010 | |
| Comparative table of servo and brake particulars for 40/50, 20/25, and Peregrine car models. | 7th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page011 | |
| Calculations for alterations to Peregrine brakes to align them with the 20/25 HP model. | 7th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page012 | |
| Alterations to a lever and the rear brake adjustment system. | 7th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page013 | |
| Proposals for alterations to the Peregrine Brake System to improve braking and reduce servo work. | 9th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page014 | |
| Alterations to the servo braking system, focusing on servo diameter, pressure, and heat generation. | 9th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page015 | |
| Blueprint showing modifications to the Peregrine brake system to bring it into line with the 20/25 specification. | 11th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page016 | |
| Comparison of braking units for four car models, with analysis and proposed improvements for the J.III and Peregrine models. | 11th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page017 | |
| Note on making the brake adjustment for the 20/25 model infinitely small. | 17th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page018 | |
| Confirming instructions for stronger rear brake actuating shafts for the Peregrine model to reduce sponginess. | 17th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page019 | |
| Braking and servo capacity issues for the Peregrine and Bensport models. | 19th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page020 | |
| Typed memo discussing the design and development of a new servo and braking system. | 26th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page021 | |
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