| Description | Date | Identifier | |
| Continued page of a document discussing the slopes of various curves. | 15th Nov 1920 | West Wittering \ E \ November1920 Scan47 | |
| Postponed trip to America, outlining vehicle preparations and issues with parts for cars 4.EX and 6.EX. | 15th Nov 1920 | West Wittering \ E \ November1920 Scan49 | |
| Carrying spare fuses and a design critique of the R.R. Switch Box knobs. | 15th Nov 1920 | West Wittering \ E \ November1920 Scan51 | |
| Performance of Rotax A.T.12 and other inherently controlled dynamos, with a list of attached documents. | 17th Nov 1920 | West Wittering \ E \ November1920 Scan53 | |
| Analysis of a four-pole dynamo, detailing its construction, materials, and performance, especially in hot conditions. | 17th Nov 1920 | West Wittering \ E \ November1920 Scan54 | |
| Comparison of performance curves and outputs for Rotax, Smith, and Lucas dynamos. | 17th Nov 1920 | West Wittering \ E \ November1920 Scan55 | |
| Graph of the open-circuit volt-speed curve for a Rotax Type A.T. 12 Dynamo. | 22th Oct 1926 | West Wittering \ E \ November1920 Scan57 | |
| Performance comparison graph of Rotax, Lucas, and Smith dynamos showing Ampere output versus speed. | 11th Nov 1920 | West Wittering \ E \ November1920 Scan58 | |
| Diagram of a Rotax A.T. 12. Dynamo showing windings, poles, brushes, and terminals. | 29th Oct 1920 | West Wittering \ E \ November1920 Scan59 | |
| The Berling Type D.63 Magneto, detailing its weight, construction, and comparison to other models. | 19th Nov 1920 | West Wittering \ E \ November1920 Scan60 | |
| Description of a magneto's construction and an assessment pending further testing. | 19th Nov 1920 | West Wittering \ E \ November1920 Scan61 | |
| Poor performance and workmanship of a U.S.A. Bosch Dynamo, with attached performance curves. | 20th Nov 1920 | West Wittering \ E \ November1920 Scan62 | |
| Performance graph of a U.S.A. Bosch Dynamo, plotting ampere output against speed under hot and cold conditions. | 19th Nov 1929 | West Wittering \ E \ November1920 Scan64 | |
| Diagram of the windings, poles, brushes, and terminals for a U.S.A. Bosch Dynamo. | 4th Nov 1920 | West Wittering \ E \ November1920 Scan65 | |
| Forwarding preliminary reports on the U.S.A. Bosch Magneto Type B.6. | 20th Nov 1920 | West Wittering \ E \ November1920 Scan66 | |
| The urgent need to assemble and critique the 'Goshawk' I chassis. | 1st Nov 1920 | West Wittering \ E \ November1920 Scan67 | |
| Preliminary report on the U.S.A. Bosch Magneto B.6, detailing its design differences, weight, and components. | 19th Nov 1920 | West Wittering \ E \ November1920 Scan68 | |
| Continued description of a safety gap and a cam ring with a serrated periphery for fine adjustment. | 6th Nov 1920 | West Wittering \ E \ November1920 Scan69 | |
| Details and analysis of an American Bosch Magneto, Type B.6. | 26th Aug 1920 | West Wittering \ E \ November1920 Scan70 | |
| Ongoing testing and sourcing of tungsten contact points and distributor sparking points. | 22th Nov 1920 | West Wittering \ E \ November1920 Scan71 | |
| Methods for attaching Tungsten rivets and the status of various Tungsten rods from different suppliers. | 22th Nov 1920 | West Wittering \ E \ November1920 Scan72 | |
| Correct fitting of Tungsten points to screws and blades with various suppliers. | 22th Nov 1920 | West Wittering \ E \ November1920 Scan73 | |
| Preliminary report on Berling Magnetos, types F.61 & E.61. | 23th Nov 1920 | West Wittering \ E \ November1920 Scan74 | |
| Preliminary report comparing Berling F.61 and E.61 type magnetos. | 22th Nov 1920 | West Wittering \ E \ November1920 Scan75 | |
| Continuation page discussing potential sparking from brushes at high speeds and a lubrication oil duct. | 22th Nov 1920 | West Wittering \ E \ November1920 Scan76 | |
| Testing rubber squeegee and 'Mystic' chemical windscreen wipers. | 22th Nov 1920 | West Wittering \ E \ November1920 Scan77 | |
| Testing various clutch fabrics for the Goshawk and Hawk-Northcliffe disc clutches. | 23th Nov 1920 | West Wittering \ E \ November1920 Scan78 | |
| Recommendation to fit a hardened steel bush to prevent excessive wear on the Governor Case spigot for the 40/50 chassis battery ignition. | 23th Nov 1920 | West Wittering \ E \ November1920 Scan79 | |
| Wear of a governor spigot with a recommendation to fit a hardened steel bush. | 24th Nov 1920 | West Wittering \ E \ November1920 Scan80 | |
| Drawing Lec.1310 for the revised 'Goshawk' crankshaft for the new light chassis. | 24th Nov 1920 | West Wittering \ E \ November1920 Scan81 | |
| Specification changes for a small chassis, including the clutch and universal joints. | 23th Nov 1920 | West Wittering \ E \ November1920 Scan82 | |
| Listing fourteen drawings to be sent for the revised 20 HP chassis. | 25th Nov 1920 | West Wittering \ E \ November1920 Scan83 | |
| Wear on plate clutches and gearboxes, referencing Packard and the proposed 'Goshawk' single plate design. | 29th Nov 1920 | West Wittering \ E \ November1920 Scan84 | |
| The decision to increase the track width of the 'Goshawk' chassis. | 2nd Dec 1920 | West Wittering \ E \ November1920 Scan85 | |
| Advising that the design for an instrument board switch is being undertaken at West Wittering. | 2nd Sep 1920 | West Wittering \ E \ September1920 Scan0 | |
| The re-erection and standardization of the Smith dynamo on chassis 6 EX. | 2nd Sep 1920 | West Wittering \ E \ September1920 Scan1 | |
| Requesting a blueprint of the electrical system for the R.R. chassis for Mr. Olley and for reference. | 3rd Sep 1920 | West Wittering \ E \ September1920 Scan2 | |
| With a sketch proposing an alternative design for a flexible connection from a condenser housing to a frame. | 6th Sep 1920 | West Wittering \ E \ September1920 Scan3 | |
| Sourcing and reliability of batteries, such as Chloride, Willards, and Tudors, for experimental cars. | 6th Sep 1920 | West Wittering \ E \ September1920 Scan4 | |
| Standardization of electrical fuses to a single gauge copper wire type. | 8th Sep 1920 | West Wittering \ E \ September1920 Scan5 | |
| Recommendation to cease using sheet metal pulleys on Smith dynamos following a failure on a customer's car. | 8th Sep 1920 | West Wittering \ E \ September1920 Scan6 | |
| Alteration to the angle of the worm drive gears for the 'Buzzard' wheelcase. | 9th Sep 1920 | West Wittering \ E \ September1920 Scan7 | |
| From Mr. Royce giving approval to proceed with the publication of the electrical appendix for an instruction book. | 9th Sep 1920 | West Wittering \ E \ September1920 Scan8 | |
| Requesting an alteration to the angle of the worm drive gears for the 'Buzzard' wheelcase. | 10th Sep 1920 | West Wittering \ E \ September1920 Scan9 | |
| Query regarding a dimensional discrepancy for the brake lever position on the body for model 6 EX. | 1st Sep 1920 | West Wittering \ E \ September1920 Scan10 | |
| Design of the electrical distribution system, focusing on fuse protection and wiring for the chassis. | 9th Sep 1920 | West Wittering \ E \ September1920 Scan11 | |
| Issues with Lodge mica ignition plugs compared to earlier porcelain types. | 1st Sep 1920 | West Wittering \ E \ September1920 Scan12 | |
| Internal memorandum discussing the performance, cleaning, and selection of various spark plugs. | 1st Sep 1920 | West Wittering \ E \ September1920 Scan13 | |
| Potential issues related to valve clearance, ignition timing, and tappets. | 10th Sep 1920 | West Wittering \ E \ September1920 Scan14 | |
| Proposal to test a modern 40/50 chassis with an old type camshaft to assess low-speed horsepower. | 17th Sep 1920 | West Wittering \ E \ September1920 Scan15 | |
| Request to alter the drawing of the 'Vulture' crankshaft. | 17th Sep 1920 | West Wittering \ E \ September1920 Scan16 | |
| Proposal from Mr. Royce for a novel, adjustable side steering tube for the 'Buzzard' and 'Vulture' chassis, with a view to patenting the design. | 1st Sep 1920 | West Wittering \ E \ September1920 Scan17 | |
| Four small modifications to a petrol tank level indicator scheme. | 17th Sep 1920 | West Wittering \ E \ September1920 Scan18 | |
| Page discussing the design of a nut plate to resist torsion. | 9th Sep 1920 | West Wittering \ E \ September1920 Scan19 | |
| Letter discussing methods to eliminate piston pin knock for the 40/50 HP chassis, referencing drawing LeC.1283. | 18th Sep 1920 | West Wittering \ E \ September1920 Scan20 | |
| Alterations to an electrical system diagram regarding light positions and dynamo placement. | 22th Sep 1920 | West Wittering \ E \ September1920 Scan21 | |
| Requesting a report on a knocking noise in the Goshawk engine's magneto drive at low speeds. | 27th Sep 1920 | West Wittering \ E \ September1920 Scan22 | |
| The rear springing of cars, its performance, and the need for improved damping, possibly due to changes in tyre manufacturing. | 30th Sep 1920 | West Wittering \ E \ September1920 Scan23 | |
| With a circuit diagram confirming alterations to the electrical system and distribution board for the 40/50 HP chassis. | 28th Sep 1920 | West Wittering \ E \ September1920 Scan24 | |
| Instruction to change the journal and pin diameters for the 'Vulture' crankshaft. | 30th Sep 1920 | West Wittering \ E \ September1920 Scan25 | |
| Agreeing to standardise serrated drives for the magneto, replacing the fabric type. | 4th Oct 1920 | West Wittering \ E \ September1920 Scan26 | |
| Heavy thud in an engine, speculating it's a worn crankshaft bearing, and requesting an inspection. | 4th Oct 1920 | West Wittering \ E \ September1920 Scan27 | |
| Letter describing a heavy thud or knock in an engine, particularly when pulling hard, and requesting an in-person inspection in Derby. | 11th Jan 1924 | West Wittering \ E \ September1920 Scan28 | |
| The poor performance and failures of Chloride batteries on experimental cars. | 1st Sep 1920 | West Wittering \ E \ September1920 Scan29 | |
| Continued memo discussing the long-term performance and reliability of Willard car batteries after 17,000 miles. | 1st Sep 1920 | West Wittering \ E \ September1920 Scan30 | |
| Earthed wiring scheme for chassis 6 EX, including dynamo, battery, and starter motor connections. | 3rd Sep 1920 | West Wittering \ E \ September1920 Scan31 | |
| On the standardisation and procurement of dynamo brushes, using up old stock and obtaining new Le Carbone brushes. | 3rd Sep 1920 | West Wittering \ E \ September1920 Scan32 | |
| Visit to the Chloride Elec Storage Company to study their battery manufacturing processes. | 6th Sep 1920 | West Wittering \ E \ September1920 Scan33 | |
| Report discussing the construction, durability, and types of lead battery plates for motor car service. | 6th Sep 1920 | West Wittering \ E \ September1920 Scan34 | |
| Discussion about the forming process of battery plates and failures experienced with standard cells. | 6th Sep 1920 | West Wittering \ E \ September1920 Scan35 | |
| Battery modifications concerning plate separators, box width, and an alternative wider battery type. | 6th Sep 1920 | West Wittering \ E \ September1920 Scan36 | |
| Mr. McKinnon's proposals and the supply of sample batteries for testing. | 6th Sep 1920 | West Wittering \ E \ September1920 Scan37 | |
| Various batteries, their specifications, and suitability for use in experimental cars. | 6th Sep 1920 | West Wittering \ E \ September1920 Scan38 | |
| Suitability and sourcing of Tudor, Lucas, and Willard batteries. | 6th Sep 1920 | West Wittering \ E \ September1920 Scan39 | |
| The design and installation of a new ignition switch with a Yale lock for the 40/50HP chassis. | 22th Sep 1920 | West Wittering \ E \ September1920 Scan40 | |
| Customer complaints and an analysis of issues with post-war cars, focusing on tyres, shock absorbers, and steering. | 7th Sep 1920 | West Wittering \ E \ September1920 Scan42 | |
| Steering wobble issues, their causes, and potential solutions involving tyres, wheels, and steering friction. | 1st Sep 1920 | West Wittering \ E \ September1920 Scan43 | |
| Steering stability, transmission knock, and suspension improvements. | 7th Sep 1920 | West Wittering \ E \ September1920 Scan44 | |
| Transmission knock, torque tube design, and electrical installation schemes for new chassis. | 1st Sep 1920 | West Wittering \ E \ September1920 Scan45 | |
| Upcoming improvements to electrical systems and the development of a left-hand drive chassis. | 7th Sep 1920 | West Wittering \ E \ September1920 Scan46 | |
| In-house design of components like the electrical system and the weight of the 40/50 HP chassis. | 1st Sep 1920 | West Wittering \ E \ September1920 Scan47 | |
| Vehicle weight reduction, component comparisons, and issues with overweight castings from suppliers. | 1st Sep 1920 | West Wittering \ E \ September1920 Scan48 | |
| Alternative moulded insulating materials like 'Condensite' and 'Bakelite' for battery ignition coil cases. | 4th Apr 1921 | West Wittering \ F \ April1921 Scan0 | |
| Specifying the use of cast iron for the flywheel, clutch pressure plate, and stationary plate for the 'Goshawk II' chassis. | 2nd Apr 1921 | West Wittering \ F \ April1921 Scan1 | |
| Material change and manufacturing details for the Goshawk II Cast Iron Flywheel. | 6th Apr 1921 | West Wittering \ F \ April1921 Scan2 | |
| Requesting enquiries from various suppliers for a starter motor for the 'Goshawk II' electrical equipment. | 1st Apr 1921 | West Wittering \ F \ April1921 Scan3 | |
| Performance of thick versus thin leaved springs on cars in America. | 8th Apr 1921 | West Wittering \ F \ April1921 Scan4 | |
| With a sketch, requesting the identification of an unrecognised wooden model received at West Wittering. | 8th Apr 1921 | West Wittering \ F \ April1921 Scan5 | |
| Alterations to the Goshawk II engine starter and rear crankcase suspension, referencing associated drawings. | 7th Apr 1921 | West Wittering \ F \ April1921 Scan6 | |
| Design and fixing of the 'Goshawk II' camshaft bearings with reference to drawing Led.1372. | 7th Apr 1921 | West Wittering \ F \ April1921 Scan7 | |
| Machine moulding modifications for a Goshawk II bottom half crankcase. | 9th Apr 1921 | West Wittering \ F \ April1921 Scan8 | |
| Sketch and notes for a memo regarding the Goshawk II engine's bottom half crankcase. | 6th Jan 1941 | West Wittering \ F \ April1921 Scan9 | |
| Mr. Royce's requested alterations for the 'GOSHAWK II' rear hub and brake drum. | 9th Apr 1921 | West Wittering \ F \ April1921 Scan10 | |
| Modifications to the Goshawk I and II equalising brake components. | 4th Apr 1921 | West Wittering \ F \ April1921 Scan11 | |
| Proposal from Mr. Royce for machining the 'Goshawk II' camshaft bearings without using extra cast-on wings. | 8th Apr 1921 | West Wittering \ F \ April1921 Scan12 | |
| Further details for the 'Goshawk' petrol tank and spare wheel carrier. | 9th Apr 1921 | West Wittering \ F \ April1921 Scan13 | |
| The camshaft timing for the Goshawk II engine, detailing indicating devices and permissible errors. | 9th Apr 1921 | West Wittering \ F \ April1921 Scan14 | |
| Modifications to the Goshawk II lower half crankcase. | 11th Apr 1921 | West Wittering \ F \ April1921 Scan15 | |
| Comparative analysis and testing proposal for various magneto models. | 4th Apr 1921 | West Wittering \ F \ April1921 Scan16 | |
| Cover note regarding notes, corrected by Mr. Royce, about a visit to West Wittering. | 1st Apr 1921 | West Wittering \ F \ April1921 Scan17 | |
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