| Description | Date | Identifier | |
| Faults with the brush and commutator system on the Goshawk dynamo. | 12th Dec 1922 | West Wittering \ J \ December1922 Scan57 | |
| Issues with the dynamo's control brush adjustment during production testing. | 12th Dec 1922 | West Wittering \ J \ December1922 Scan58 | |
| Explaining the delay in sending the 7-Goshawk-11 Maythorn Saloon for bodywork corrections due to experimental work. | 29th Nov 1922 | West Wittering \ J \ December1922 Scan59 | |
| Booming noise in a limousine trials car, identified as originating from the exhaust note. | 7th Dec 1922 | West Wittering \ J \ December1922 Scan60 | |
| Advantages of a semi-earthed electrical system for a chassis. | 5th Dec 1922 | West Wittering \ J \ December1922 Scan61 | |
| The disadvantages of the Goshawk electrical system and a proposal for a semi-earthed system for lamp circuits. | 12th Dec 1922 | West Wittering \ J \ December1922 Scan62 | |
| Points regarding the emergency fuse on the Goshawk system and the inspection lamp wiring. | 12th Dec 1922 | West Wittering \ J \ December1922 Scan63 | |
| Wiring diagram for a semi-earthed electrical system. | 5th Dec 1922 | West Wittering \ J \ December1922 Scan64 | |
| Test report on the durability and performance of a Bijur type Bendix starter after 8,000 operations. | 12th Dec 1922 | West Wittering \ J \ December1922 Scan65 | |
| Performance and weaknesses of spring shackles, comparing C.H.N.S. bushes to bronze and highlighting wear issues. | 6th Dec 1922 | West Wittering \ J \ December1922 Scan66 | |
| Information received on nickel iron alkaline batteries from Mr. Minchin of Peto & Radford Co. | 7th Dec 1922 | West Wittering \ J \ December1922 Scan67 | |
| Extract of a letter discussing the experimental state and numerous issues with nickel-iron batteries. | 4th Dec 1922 | West Wittering \ J \ December1922 Scan68 | |
| Report comparing the performance of Alklum and Ni-Fe motor car batteries. | 5th Dec 1922 | West Wittering \ J \ December1922 Scan69 | |
| Output performance and test results for the Goshawk dynamo. | 7th Dec 1922 | West Wittering \ J \ December1922 Scan70 | |
| Dynamo performance, comparing machines and detailing a new test rig setup. | 7th Dec 1922 | West Wittering \ J \ December1922 Scan71 | |
| Graph showing the output performance curves of Goshawk and Lucas E.875 dynamos versus RPM. | 7th Dec 1932 | West Wittering \ J \ December1922 Scan72 | |
| Improved spring arrangement for the 40/50 HP chassis throttle control. | 8th Dec 1922 | West Wittering \ J \ December1922 Scan73 | |
| Rattles from the magneto drive's serrated joints on 20 HP cars and a proposed solution. | 1st Dec 1922 | West Wittering \ J \ December1922 Scan74 | |
| Recommendation to revert to fixed bushes for springs on the 20 HP model due to wear and repair difficulties with floating bushes. | 12th Dec 1922 | West Wittering \ J \ December1922 Scan75 | |
| Test report detailing failures of a modified 20 HP steering support, stays, and aluminium steering boxes. | 12th Dec 1922 | West Wittering \ J \ December1922 Scan76 | |
| Analysing the sources of vibrations and 'boom' in a limousine trials car, focusing on engine, axle, and exhaust note frequencies. | 12th Dec 1922 | West Wittering \ J \ December1922 Scan77 | |
| Vehicle vibrations, resonance, and body construction to mitigate undesirable noise. | 11th Aug 1920 | West Wittering \ J \ December1922 Scan78 | |
| The causes and prevention of 'roof booming' in vehicle bodies. | 11th Aug 1920 | West Wittering \ J \ December1922 Scan79 | |
| Stress test performed on a steering box and a change in material to aluminium bronze. | 13th Dec 1922 | West Wittering \ J \ December1922 Scan80 | |
| Proposal for a friction drive scheme using spring-loaded bevelled rings to achieve quieter engine gears. | 13th Dec 1922 | West Wittering \ J \ December1922 Scan81 | |
| Continued note discussing the necessity of having tight gears and thick oil. | 14th Dec 1922 | West Wittering \ J \ December1922 Scan82 | |
| Experiments to measure temperatures attained by the Goshawk ignition coil. | 14th Dec 1922 | West Wittering \ J \ December1922 Scan83 | |
| Report page detailing temperature tests on various engine coil configurations, including insulated and uninsulated setups. | 14th Dec 1922 | West Wittering \ J \ December1922 Scan84 | |
| Report comparing the performance of various ignition coils, including bakelite and Goshawk types, under different test conditions. | 14th Dec 1922 | West Wittering \ J \ December1922 Scan85 | |
| Comparison of performance between improved bakelite, 40/50, and stabalite ignition coils. | 14th Dec 1922 | West Wittering \ J \ December1922 Scan86 | |
| Comparison report on the performance of a 40/50 standard coil versus Mr. Brock's No.1 coil. | 6th Dec 1922 | West Wittering \ J \ December1922 Scan87 | |
| Graph showing temperature time curves for a Goshawk engine ignition coil under various test conditions. | 13th Dec 1922 | West Wittering \ J \ December1922 Scan88 | |
| Correction regarding the ampere turns for the 'Seagull' dynamo yoke. | 20th Dec 1922 | West Wittering \ J \ December1922 Scan89 | |
| The components and operational principles of a post-war R. Bosch electrical system received for examination and testing. | 20th Dec 1922 | West Wittering \ J \ December1922 Scan90 | |
| Continued description of the operation of the dynamo regulating range, cutout unit, and solenoid-operated starter motor. | 30th Dec 1922 | West Wittering \ J \ December1922 Scan91 | |
| Description of the starter switch, switchbox functions, and various lighting and magneto connections. | 20th Dec 1922 | West Wittering \ J \ December1922 Scan92 | |
| Description of the car's electrical system, dynamo charging indicators, and fuse arrangements. | 20th Dec 1922 | West Wittering \ J \ December1922 Scan93 | |
| Wiring diagram for a Post-War Bosch lighting and starting system. | 22th Dec 1922 | West Wittering \ J \ December1922 Scan94 | |
| Proposing a visit to W.W. and outlining the substitution of a 40/50 HP car for a Goshawk-11. | 27th Dec 1922 | West Wittering \ J \ December1922 Scan95 | |
| Engine bench tests conducted on exhaust valves for a 20 HP chassis to investigate failures. | 27th Dec 1922 | West Wittering \ J \ December1922 Scan96 | |
| Analysis of engine pre-ignition, its effect on exhaust valves, and ongoing tests on various engines. | 27th Dec 1922 | West Wittering \ J \ December1922 Scan97 | |
| Diagnosis of an engine problem, identified as pre-ignition potentially caused by over-heating or fuel mixture. | 27th Dec 1922 | West Wittering \ J \ December1922 Scan98 | |
| Requesting a No.4 Goshawk 20.HP car for an advertisement photograph. | 27th Dec 1922 | West Wittering \ J \ December1922 Scan99 | |
| American production procedures, focusing on chassis standardisation and issues with the Bosch battery ignition system. | 27th Dec 1922 | West Wittering \ J \ December1922 Scan100 | |
| The wiring arrangement for the Goshawk 11, requesting a complete set of drawings. | 1st Feb 1923 | West Wittering \ J \ February1923 Scan0 | |
| Agreement to a permanent application of radius rods to the Goshawk front axle to correct steering geometry. | 5th Feb 1929 | West Wittering \ J \ February1923 Scan1 | |
| Design of bonnet shutters versus louvres for increased cooling capacity on the Goshawk. | 2nd Feb 1923 | West Wittering \ J \ February1923 Scan2 | |
| Development policy for the Goshawk and Seagull chassis, with a focus on universal joints. | 7th Feb 1923 | West Wittering \ J \ February1923 Scan3 | |
| With suggestions regarding compression, smoking, ignition, and starting handle for the E.A.C. Engine. | 1st Feb 1924 | West Wittering \ J \ February1923 Scan4 | |
| Design of a new 40/50 water pump rotor using various materials. | 9th Feb 1923 | West Wittering \ J \ February1923 Scan5 | |
| Preliminary General Arrangement drawing (N.sch. 1374) for the 'Seagull' project, noting it is not a final design. | 9th Feb 1923 | West Wittering \ J \ February1923 Scan6 | |
| Telegram from Royce requesting Hives to bring spare miniature ignition plugs. | 12th Feb 1923 | West Wittering \ J \ February1923 Scan7 | |
| Telegram received by telephone suggesting a meeting on Wednesday. | 12th Feb 1923 | West Wittering \ J \ February1923 Scan8 | |
| Specifications for a starter motor's pinion, flywheel, and epicyclic reduction. | 15th Feb 1923 | West Wittering \ J \ February1923 Scan9 | |
| Recommending battery ignition as the primary system for the Goshawk engine, with a magneto fitted as a standard reserve. | 11th Aug 1920 | West Wittering \ J \ February1923 Scan10 | |
| Secret memorandum discussing the design and construction of experimental bodies for a 40/50 template chassis. | 20th Feb 1923 | West Wittering \ J \ February1923 Scan11 | |
| Modifications to the exhaust choke valve control for the 40/50 chassis. | 22th Feb 1923 | West Wittering \ J \ February1923 Scan12 | |
| Use of a G.S. Watford magneto for the Goshawk 11 ignition system. | 23th Feb 1923 | West Wittering \ J \ February1923 Scan13 | |
| Design and simplification of the Goshawk 11 cutout actuation mechanism. | 23th Feb 1923 | West Wittering \ J \ February1923 Scan14 | |
| Secret memo regarding modifications to an experimental chassis, specifically the R.H. levers. | 23th Feb 1923 | West Wittering \ J \ February1923 Scan15 | |
| The fitting and road testing of a new thermostat for a Goshawk 11 engine, with design suggestions. | 24th Feb 1923 | West Wittering \ J \ February1923 Scan16 | |
| Magneto ignition for the Goshawk 11 engine, referencing correspondence with Messrs North. | 24th Feb 1923 | West Wittering \ J \ February1923 Scan17 | |
| Letter from North & Sons Ltd. discussing the supply and specifications of 6-cylinder magnetos. | 13th Sep 1921 | West Wittering \ J \ February1923 Scan18 | |
| Diagnosis and repair of a sticking thermostat for car 5.GOS: 11. | 27th Feb 1923 | West Wittering \ J \ February1923 Scan19 | |
| Requesting a blueprint for the breather pipe from the crankcase to the hot air pipe on a 40/50 chassis. | 27th Feb 1923 | West Wittering \ J \ February1923 Scan20 | |
| Specifications and alterations for the 40/50 Dynamo and E.A.C. motor, including armature, carcase, and winding details. | 28th Feb 1923 | West Wittering \ J \ February1923 Scan21 | |
| Starter motor drive ratios, voltage loss in circuits, and upcoming matters concerning the EAC gearbox and clutch. | 11th Aug 1920 | West Wittering \ J \ February1923 Scan22 | |
| Requesting the average wear rate on Goshawk II clutches and comparative test results for three different Ferodo clutch fabrics. | 28th Feb 1923 | West Wittering \ J \ February1923 Scan23 | |
| Request for a suitable box spanner and an adapter to fit and test new miniature spark plugs. | 28th Feb 1923 | West Wittering \ J \ February1923 Scan24 | |
| Results of tests on piston scraper rings and the advantages of the bevel ring design. | 1st Feb 1923 | West Wittering \ J \ February1923 Scan25 | |
| Testing and failure analysis of a Bijur starter drive. | 1st Feb 1923 | West Wittering \ J \ February1923 Scan26 | |
| Comparing the Bijur and Bendix starter drives, noting future application to the 'Seagull' and 'Goshawk' projects. | 1st Feb 1923 | West Wittering \ J \ February1923 Scan27 | |
| Investigation into the cause of carburettor whistle and two proposed lines of action to eliminate the noise. | 1st Feb 1923 | West Wittering \ J \ February1923 Scan28 | |
| Continuation of a report on carburetter noise tests, comparing different throttle types and air inlet configurations. | 7th Feb 1923 | West Wittering \ J \ February1923 Scan29 | |
| Successful induction pipe experiments and suggestions for further tests on Seagull and Marmon engines. | 2nd Feb 1923 | West Wittering \ J \ February1923 Scan30 | |
| Proposing a replacement driver, T. Maddocks, for the car '4.GOSHAWK.11' and outlining the travel plan to France. | 2nd Feb 1923 | West Wittering \ J \ February1923 Scan31 | |
| Extensive alterations and subsequent delays in preparing the Goshawk I car. | 5th Feb 1923 | West Wittering \ J \ February1923 Scan32 | |
| Outlining necessary improvements and features for the magneto on the 20 HP car. | 6th Feb 1925 | West Wittering \ J \ February1923 Scan33 | |
| The unsuitability of fibre washers for petrol joints and a proposal to use cork or leather instead. | 6th Feb 1923 | West Wittering \ J \ February1923 Scan34 | |
| Modifications to reduce carburetter suction noise. | 6th Feb 1923 | West Wittering \ J \ February1923 Scan35 | |
| Achieving silence with a baffle for a long hot air pipe and sending a standardisation sheet. | 7th Feb 1923 | West Wittering \ J \ February1923 Scan36 | |
| Scheme for a spring control on the butterfly valve of an exhaust pipe to prevent throttle stickiness. | 7th Feb 1923 | West Wittering \ J \ February1923 Scan37 | |
| Proposed scheme for a stay to be fitted to the 40/50 swan neck. | 2nd Feb 1923 | West Wittering \ J \ February1923 Scan38 | |
| Design considerations for the Seagull Dynamo, particularly regarding a reduction in carcase diameter. | 17th Feb 1923 | West Wittering \ J \ February1923 Scan39 | |
| Excessive wear on the 40/50 HP water pump rotor and a proposal for a new design. | 7th Feb 1923 | West Wittering \ J \ February1923 Scan40 | |
| Road test results comparing standard radiator tubes with new indented tubes for improved cooling efficiency. | 2nd Feb 1923 | West Wittering \ J \ February1923 Scan41 | |
| From Hs. to R. regarding the delivery of the 'Goshawk 1' car and a planned meeting. | 9th Feb 1923 | West Wittering \ J \ February1923 Scan42 | |
| Testing of a thermostat for a 5-Goshawk-11 engine. | 10th Feb 1923 | West Wittering \ J \ February1923 Scan43 | |
| Cover letter for two reports comparing the wear of different rubbing blocks and testing tungsten contact points. | 2nd Feb 1923 | West Wittering \ J \ February1923 Scan44 | |
| Endurance test report on the Goshawk Distributor, focusing on the wear of the bakelite rubbing block. | 30th Oct 1922 | West Wittering \ J \ February1923 Scan45 | |
| Instruction sheet detailing a test to measure the wear on various distributor components. | 30th Oct 1922 | West Wittering \ J \ February1923 Scan46 | |
| Instruction sheet detailing wear and corrosion on a distributor head, spring, and rubbing block. | 30th Oct 1922 | West Wittering \ J \ February1923 Scan47 | |
| Endurance test report for parts fitted to the Goshawk ignition system. | 29th Jan 1923 | West Wittering \ J \ February1923 Scan48 | |
| Testing contact points and comparing the wear of a grey fibre rubbing block with a bakelite block. | 29th Jan 1923 | West Wittering \ J \ February1923 Scan49 | |
| Test report detailing fibre wear creating dust that covered components, leading to corrosion and wear on ignition parts. | 29th Jan 1923 | West Wittering \ J \ February1923 Scan50 | |
| Comparative test report on Raybestos and Ferodo clutch fabrics for a 20 HP clutch. | 16th Feb 1923 | West Wittering \ J \ February1923 Scan51 | |
| The loss of friction coefficient in brake liners and clutch material from supplier Ferodo Ltd. | 30th Jan 1923 | West Wittering \ J \ February1923 Scan52 | |
| Letter from Ferodo Ltd. detailing the test results of a 20 HP plate clutch lining. | 30th Jan 1923 | West Wittering \ J \ February1923 Scan53 | |
| Test results for Ferodo Bonden Asbestos plate clutch linings against different plate materials. | 30th Jan 1923 | West Wittering \ J \ February1923 Scan54 | |
| Letter from Ferodo Ltd. regarding test results and recommendations for a 20.HP plate clutch lining. | 30th Jan 1923 | West Wittering \ J \ February1923 Scan55 | |
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