| Description | Date | Identifier | |
| Calculations for Peregrine brakes concerning servo stroke and braking distribution. | 26th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page022 | |
| Issue with the Peregrine front brakes related to the swinging arm lubricator. | 28th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page023 | |
| Test results and proposed alterations for Peregrine brake units. | 2nd Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page024 | |
| The performance and modifications of the brake layout for the Peregrine II car. | 10th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page025 | |
| Blueprint showing the layout and specifications for a Peregrine brake system. | 3rd Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page026 | |
| Blueprint showing the design for Peregrine brake toggles. | 14th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page027 | |
| Material changes for Peregrine brakes, switching from Duralumin and Aluminium to mild steel. | 14th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page028 | |
| Performance and design of hydraulic brake systems. | 21th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page029 | |
| Note on Lockheed's automatic ratchet adjustment for brake systems and cylinder weights. | 21th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page030 | |
| Investigation into Peregrine foot brake leverages, identifying high torsion issues and proposing a solution by reducing lever lengths. | 24th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page031 | |
| Comparison and analysis of brake sponginess in the Peregrine system versus other models. | 16th Feb 1933 | Box 1 \ 10 B001_X106 TO X 110-page032 | |
| Tests and improvements on the Brake Cam Actuating Shaft and Peregrine Brakes. | 13th Apr 1933 | Box 1 \ 10 B001_X106 TO X 110-page033 | |
| Brake adjustments and pedal modifications for Peregrine & Bensport models. | 13th Apr 1933 | Box 1 \ 10 B001_X106 TO X 110-page034 | |
| Scheme to overcome inefficient brakes on wet roads for Peregrine & Bensport models. | 3rd May 1933 | Box 1 \ 10 B001_X106 TO X 110-page035 | |
| Blank divider page with the handwritten number '107'. | 3rd May 1933 | Box 1 \ 10 B001_X106 TO X 110-page036 | |
| Tabulated list comparing valve opening specifications for various engines. | 12th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page037 | |
| Camshaft tests for the Peregrine engine, analyzing M.E.P. and power results from different configurations. | 12th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page038 | |
| Optimum camshaft timing and performance results from engine tests. | 12th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page039 | |
| Performance comparison graph for a Peregrine engine, testing small versus large valves. | 12th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page040 | |
| Performance graph showing the effect of various tappet clearances for a 104° camshaft engine. | 12th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page041 | |
| Graph comparing engine performance (BHP and BMEP) with varying tappet clearances. | 12th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page042 | |
| Performance graph comparing the best results achieved with two different camshaft configurations. | 14th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page043 | |
| Alterations to the Peregrine camshaft inlet form. | 14th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page044 | |
| Modification to a cam form. | 14th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page045 | |
| Replacement and modification of the Peregrine II Camshaft. | 22th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page046 | |
| Modifications and testing of a Peregrine engine camshaft. | 20th Mar 1932 | Box 1 \ 10 B001_X106 TO X 110-page047 | |
| Camshaft timing diagram for the Peregrine engine. | 21th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page048 | |
| Requesting the production of the Peregrine camshaft as a solid shaft instead of hollow. | 25th Aug 1932 | Box 1 \ 10 B001_X106 TO X 110-page049 | |
| Results of tests on Peregrine engine camshafts with various toe profiles. | 20th Sep 1932 | Box 1 \ 10 B001_X106 TO X 110-page050 | |
| Design specifications and performance of two new camshaft forms. | 21th Sep 1932 | Box 1 \ 10 B001_X106 TO X 110-page051 | |
| Performance comparison of alterations to the Peregrine engine to improve low-speed torque. | 25th Aug 1932 | Box 1 \ 10 B001_X106 TO X 110-page052 | |
| Performance graph comparing a single 1 5/8' carburetter against two 1 1/4' S.U. carburetters. | 21th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page053 | |
| Performance graph for a reduced toe camshaft with large and small valves. | 21th Jul 1932 | Box 1 \ 10 B001_X106 TO X 110-page054 | |
| Performance comparison graph for two different camshaft configurations, plotting BHP and BMEP against RPM. | 21th Sep 1932 | Box 1 \ 10 B001_X106 TO X 110-page055 | |
| Noise issues and comparisons between standard and experimental Peregrine camshaft toes. | 21th Sep 1932 | Box 1 \ 10 B001_X106 TO X 110-page056 | |
| Graph comparing the toe of camshafts with a standard shaft profile. | 20th Sep 1923 | Box 1 \ 10 B001_X106 TO X 110-page057 | |
| Modifications to the Peregrine engine's cam form to improve low-speed performance. | 1st Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page058 | |
| Note on the possibility of roar with overlap and its relation to back pressure in the exhaust system. | 1st Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page059 | |
| New camshaft design for the Peregrine engine with reduced overlap. | 8th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page060 | |
| Performance, silence, and manufacturing variations of a Peregrine engine camshaft. | 11th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page061 | |
| Modifications to the oiling of Peregrine camshaft bearings and the relocation of the oil drain plug. | 28th Feb 1933 | Box 1 \ 10 B001_X106 TO X 110-page062 | |
| The need to alter the Peregrine camshaft E.100863 due to excessive overlap during slow running. | 24th Mar 1933 | Box 1 \ 10 B001_X106 TO X 110-page063 | |
| Camshaft tests for slow running on the Peregrine engine. | 21th Jun 1933 | Box 1 \ 10 B001_X106 TO X 110-page064 | |
| Performance graph comparing a 110° shaft with a normal 107° shaft to improve slow running. | 21th Jun 1933 | Box 1 \ 10 B001_X106 TO X 110-page065 | |
| Performance graph comparing a 110° shaft (H.S.970) against a normal 107° shaft (E.100863) to improve slow running. | 21th Jun 1933 | Box 1 \ 10 B001_X106 TO X 110-page066 | |
| Performance comparison graph for an extra short duration camshaft against a standard shaft. | 21th Jun 1933 | Box 1 \ 10 B001_X106 TO X 110-page067 | |
| Blank page with the handwritten number '/08.' in the top right corner. | 14th Apr 1932 | Box 1 \ 10 B001_X106 TO X 110-page068 | |
| Carburettor design, including the semi-expander and suction chamber for J.3 and Peregrine engines. | 14th Apr 1932 | Box 1 \ 10 B001_X106 TO X 110-page069 | |
| Design and performance of the Peregrine carburetter and induction pipe, including throttle valve size and spatial constraints. | 23th Aug 1932 | Box 1 \ 10 B001_X106 TO X 110-page070 | |
| The carburetter, air inlet, silencer, and mixture control systems. | 24th Aug 1932 | Box 1 \ 10 B001_X106 TO X 110-page071 | |
| Peregrine carburetter and induction pipe, clarifying performance expectations and design simplifications. | 24th Aug 1932 | Box 1 \ 10 B001_X106 TO X 110-page072 | |
| Fuel consumption issues and potential fixes for the J.3 & Peregrine carburetter. | 31th Aug 1932 | Box 1 \ 10 B001_X106 TO X 110-page073 | |
| Designs for the Peregrine carburetter air inlet and crankcase breather connection, with reference to two prints. | 8th Sep 1932 | Box 1 \ 10 B001_X106 TO X 110-page074 | |
| Blueprint for experimental modifications to a Peregrine carburetter. | 15th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page075 | |
| Unsatisfactory annular connection on the Semi-Expanding Peregrine Carburetter. | 17th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page076 | |
| The initial test runs of the Peregrine carburetter, discussing its promising performance and spatial constraints. | 24th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page077 | |
| The preliminary tests of a semi-expanding carburetter for the Peregrine engine. | 24th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page078 | |
| Carburettor piston modifications, clearances, and main jet adjustments. | 24th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page079 | |
| Carburettor testing, detailing modifications to the diffuser and investigations into slow running performance. | 24th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page080 | |
| Carburetter testing, covering starting, petrol levels, and air intake silencer issues. | 24th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page081 | |
| Performance graph comparing S.U. and R.R. carburettors by plotting B.M.E.P. and depression against engine speed. | 28th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page082 | |
| Experimental modifications for the Peregrine Carburetter. | 28th Oct 1932 | Box 1 \ 10 B001_X106 TO X 110-page083 | |
| Requesting the experimental production of a Carburetter Automatic Starting Device for the Peregrine engine. | 1st Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page084 | |
| Design and development updates for the Peregrine Carburetter. | 12th Nov 1932 | Box 1 \ 10 B001_X106 TO X 110-page085 | |
| Work-in-progress report on modifications to the Peregrine carburettor and steering assembly. | 6th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page086 | |
| Blueprint for fitting a J.2 carburetter to a Peregrine throttle body for experimental use. | 7th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page087 | |
| Use of a J.2 carburetter with a Peregrine uptake and two alternative designs for the steering box. | 8th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page088 | |
| Analysis of carburetter tests completed on the Peregrine engine. | 13th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page089 | |
| Test report comparing carburetter performance under five different configurations and modifications. | 12th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page090 | |
| Performance data tables for J.3 and S.U. carburetters on a Peregrine manifold. | 12th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page091 | |
| Distribution issues with the Peregrine carburetter and a proposed solution. | 12th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page092 | |
| Instruction to try a less tapered venturi tube in the Peregrine carburetter. | 15th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page093 | |
| Modifications to the Peregrine carburettor, comparing tapered and parallel-sided venturis. | 19th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page094 | |
| Testing different choke and venturi combinations to resolve loading issues. | 19th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page095 | |
| Drawing and experimental production of a long small choke for a Peregrine engine carburetter. | 20th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page096 | |
| Drawings for the Peregrine Engine's induction pipe and carburetter. | 24th Dec 1932 | Box 1 \ 10 B001_X106 TO X 110-page097 | |
| Revised Peregrine Carburetter suitable for the new steering box position. | 4th Jan 1933 | Box 1 \ 10 B001_X106 TO X 110-page098 | |
| Re-designed throttle edge adjustment for the Peregrine carburetter. | 14th Jan 1933 | Box 1 \ 10 B001_X106 TO X 110-page099 | |
| New position for the crankcase breather pipe on the Peregrine III Car. | 18th Jan 1933 | Box 1 \ 10 B001_X106 TO X 110-page100 | |
| Construction of a third and final induction pipe for improving Peregrine distribution. | 1st Feb 1933 | Box 1 \ 10 B001_X106 TO X 110-page101 | |
| Tests on Peregrine carburetter induction pipes, discussing distribution issues and proposed modifications. | 3rd Mar 1933 | Box 1 \ 10 B001_X106 TO X 110-page102 | |
| Preliminary tests of twin S.U. carburettors on a Peregrine engine. | 20th Mar 1933 | Box 1 \ 10 B001_X106 TO X 110-page103 | |
| The development and testing of semi-expanding carburettors for the Peregrine engine, comparing them with S.U. carburettors. | 26th Mar 1933 | Box 1 \ 10 B001_X106 TO X 110-page104 | |
| Carburetter trials for the Phantom 27-EX and ongoing development for the Peregrine engine. | 26th May 1933 | Box 1 \ 10 B001_X106 TO X 110-page105 | |
| Blueprint of the Peregrine induction system with annotations and dimensions. | 29th May 1943 | Box 1 \ 10 B001_X106 TO X 110-page106 | |
| Sketch showing modifications to a semi-expanding carburetter. | 28th May 1933 | Box 1 \ 10 B001_X106 TO X 110-page107 | |
| Performance graph comparing Small and J3 R.R. Semi Expanding carburetters for the Peregrine setup. | 28th May 1933 | Box 1 \ 10 B001_X106 TO X 110-page108 | |
| Performance graph comparing the max power and fuel consumption of two different carburetter setups on a Peregrine engine. | 28th May 1933 | Box 1 \ 10 B001_X106 TO X 110-page109 | |
| Graph comparing the max power and performance of S.U and RR J3 carburettors for the Peregrine engine. | 30th May 1933 | Box 1 \ 10 B001_X106 TO X 110-page110 | |
| Improvements to the Peregrine induction system and the performance of different hot spot heating methods. | 30th May 1933 | Box 1 \ 10 B001_X106 TO X 110-page111 | |
| Graph plotting hot spot temperatures in degrees Celsius against engine RPM for three different heating methods. | 13th Jun 1933 | Box 1 \ 10 B001_X106 TO X 110-page112 | |
| Policy reasons for persevering with the RR carburettor over the S.U. carburettor for the Peregrine engine. | 13th Jun 1933 | Box 1 \ 10 B001_X106 TO X 110-page113 | |
| Page number '110.' on a blank divider sheet. | 13th Jun 1933 | Box 1 \ 10 B001_X106 TO X 110-page114 | |
| Blue page with the handwritten page number 136. | 6th Jul 1932 | Box 2 \ 1 B002_136 137-page01 | |
| Experimental Peregrine pistons with a more flexible skirt and thinner crown. | 6th Jul 1932 | Box 2 \ 1 B002_136 137-page02 | |
| Issues with Peregrine piston stiffness, comparing it to other models, and proposing a more flexible design. | 2nd Aug 1932 | Box 2 \ 1 B002_136 137-page03 | |
| Investigation into a loud clatter from a Peregrine engine, identified as piston noise. | 26th Aug 1932 | Box 2 \ 1 B002_136 137-page04 | |
| Request to change Peregrine engine pistons to a lower compression ratio for supercharger work. | 26th Jun 1932 | Box 2 \ 1 B002_136 137-page05 | |
| Piston replacement and compression ratio change for the Peregrine II engine. | 2nd Sep 1932 | Box 2 \ 1 B002_136 137-page06 | |
| Piston LeC.3214 for the Experimental Peregrine Engine, detailing compression ratios. | 23th Sep 1932 | Box 2 \ 1 B002_136 137-page07 | |
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