| Description | Date | Identifier | |
| Requesting modifications to a WXA.2 Hs's. Wraith car. | 1st Oct 1938 | Box 109 \ 5 scan0241 | |
| Diagnosing a misfiring issue related to an oiled-up spark plug in car WXA.2. | 25th Oct 1938 | Box 109 \ 5 scan0242 | |
| The loan of an experimental car to 'Hs.' while his own car is used by Sales. | 7th Nov 1938 | Box 109 \ 5 scan0243 | |
| Typed memo confirming an agreement for the use of a car for three days. | 7th Nov 1938 | Box 109 \ 5 scan0244 | |
| The loan of an experimental car to Hs. while his own car is with Sales. | 7th Nov 1938 | Box 109 \ 5 scan0245 | |
| Brief internal memo confirming an arrangement for borrowing a car for three days. | 7th Nov 1938 | Box 109 \ 5 scan0246 | |
| Arranging for a driver to collect a car to be used by Messrs. George Heath of Birmingham. | 8th Nov 1938 | Box 109 \ 5 scan0247 | |
| Letter to Park Ward & Co., Ltd. regarding chassis WXA-2 belonging to Mr. Hives. | 21th Nov 1938 | Box 109 \ 5 scan0248 | |
| Replacing the mild steel centre expansion box on a Wraith car WXA.2 with a Staybright one and modifying its suspension. | 2nd Dec 1938 | Box 109 \ 5 scan0249 | |
| Discrepancy in a car's maximum speed and questioning the speedometer's accuracy. | 6th Dec 1938 | Box 109 \ 5 scan0250 | |
| Maximum speed tests for the WXA.2 car and lap speed for the 25.G.VI. | 12th Dec 1938 | Box 109 \ 5 scan0251 | |
| Instructing for the centre expansion box and downtake pipe suspension to be fitted to a Wraith car WXA.2. | 5th Jan 1939 | Box 109 \ 5 scan0252 | |
| Requesting the fitment of car heating to car WXA.1. | 18th Jan 1939 | Box 109 \ 5 scan0253 | |
| Requesting the removal and inspection of a servo for oil on the linings, and to fit a solid plate. | 7th Mar 1939 | Box 109 \ 5 scan0254 | |
| Request to reline the front and rear brakes of chassis WXA.2 with Thermoid linings. | 9th May 1939 | Box 109 \ 5 scan0255 | |
| Request to reline the front and rear brakes on chassis WXA.2 with Thermoid linings. | 10th May 1939 | Box 109 \ 5 scan0256 | |
| Instructions for fitting new special cylinder blocks with liner inserts to WXA.1 and WXA.2 cars. | 12th Sep 1939 | Box 109 \ 5 scan0257 | |
| Recommendation to use the Lucas starter motor on Hs' car based on its established reliability and simplicity. | 20th Jul 1939 | Box 109 \ 5 scan0258 | |
| The build specifications for B.V. Gearbox No.12, its differences from No.11, and its intended vehicle. | 26th Jul 1939 | Box 109 \ 5 scan0259 | |
| Martindale's recommendations for 'Myth' brakes, specifically the hand brake placement. | 9th Oct 1939 | Box 110 \ 1 scan0001 | |
| Suggested specification for a 28 cwt. car's braking system. | 28th Dec 1935 | Box 110 \ 1 scan0002 | |
| Brake design, comparing internal vs external wheel cylinders and outlining reasons against a hydraulic system. | 28th Dec 1935 | Box 110 \ 1 scan0003 | |
| Effectiveness, potential issues, and leverage ratios of a brake design. | 3rd Sep 1940 | Box 110 \ 1 scan0004 | |
| Secret memorandum discussing the requirements and specifications for hydraulic brakes on the 'Myth' project. | 3rd Sep 1940 | Box 110 \ 1 scan0005 | |
| Secret internal memorandum regarding the hydraulic brake specifications for the 'Myth' project. | 3rd Sep 1940 | Box 110 \ 1 scan0006 | |
| Calculations and specifications for 'Myth' hydraulic brakes. | 6th Sep 1940 | Box 110 \ 1 scan0007 | |
| File note referencing correspondence with Automotive Products Coy about Rippletto and Myth Cars. | 1st Oct 1940 | Box 110 \ 1 scan0008 | |
| Extract detailing calculations for drum and shoe sizes for Lockheed Hydraulic Brakes on the MYTH vehicle. | 13th Sep 1940 | Box 110 \ 1 scan0009 | |
| Cover note for an attached letter from Mr. Parnell of Lockheed's. | 19th Sep 1940 | Box 110 \ 1 scan0010 | |
| Copy of a letter from Lockheed's (Automotive Products Company Ltd.) regarding modifications to a brake system. | 16th Sep 1940 | Box 110 \ 1 scan0011 | |
| Specifications and calculations for Myth Lockheed hydraulic brakes. | 25th Sep 1940 | Box 110 \ 1 scan0012 | |
| Letter from Automotive Products Company Ltd regarding a proposed Tandem Master Cylinder for Repletto and Myth cars. | 28th Sep 1940 | Box 110 \ 1 scan0013 | |
| Drawing of a 1 inch Tandem Master Cylinder, 'C.B' type. | 26th Sep 1946 | Box 110 \ 1 scan0014 | |
| Letter to Automotive Products Ltd. regarding the 'Rippletto and Myth' cars, acknowledging receipt of a letter and drawing. | 2nd Oct 1940 | Box 110 \ 1 scan0015 | |
| Cover note for a letter to Lockheed, its answer, and a lent drawing. | 2nd Oct 1940 | Box 110 \ 1 scan0016 | |
| Analysis and proposal for the brake system on the 'Myth' class vehicle. | 25th Oct 1940 | Box 110 \ 1 scan0017 | |
| Analysis of braking system modifications for the 'Myth' model, discussing servos and cylinder sizes. | 25th Oct 1940 | Box 110 \ 1 scan0018 | |
| Schematic diagram of a servo-assisted hydraulic brake system. | 29th Oct 1940 | Box 110 \ 1 scan0019 | |
| Brake system options for the 'Myth' class vehicle, including Lockheed hydraulics and a proposed servo system. | 25th Oct 1940 | Box 110 \ 1 scan0020 | |
| Analysis of brake system options, including servos and cylinder sizes, for the 'Myth' model car. | 25th Oct 1940 | Box 110 \ 1 scan0021 | |
| Hand-drawn diagram illustrating a servo-assisted hydraulic braking system. | 24th Oct 1940 | Box 110 \ 1 scan0022 | |
| Weight of 'Myth' brake components and comparing them with Lockheed parts. | 28th Oct 1940 | Box 110 \ 1 scan0023 | |
| Typed memorandum concluding with a statement on a water exclusion system and the accuracy of provided figures. | 28th Oct 1940 | Box 110 \ 1 scan0024 | |
| Letter to Automotive Products Company Ltd. regarding two leading shoe brakes and the supply of a proposed drum. | 5th Nov 1940 | Box 110 \ 1 scan0025 | |
| Letter to Stainless Spinning Works regarding experimental spring plates and a request for design specifications. | 5th Nov 1940 | Box 110 \ 1 scan0026 | |
| Letter to Automotive Products Co. regarding a dimensional change on a brake component and its subsequent impact on other parts. | 9th Dec 1940 | Box 110 \ 1 scan0027 | |
| Letter to Stainless Spinning Works regarding a cost increase on experimental spring plates and seeking alternative manufacturing advice. | 3rd Dec 1940 | Box 110 \ 1 scan0028 | |
| Design and components of the hand brake linkage for the 'Myth' project. | 4th Jan 1941 | Box 110 \ 1 scan0029 | |
| Design and function of the Myth hand brake linkage, specifically the rear idler lever and equaliser. | 4th Jan 1941 | Box 110 \ 1 scan0030 | |
| Design of the brake and clutch pedals for the Myth chassis. | 24th Jan 1941 | Box 110 \ 1 scan0031 | |
| Letter to Automotive Products Co. regarding prints of schemes for a master cylinder and handbrake operation for Myth brakes. | 11th Feb 1941 | Box 110 \ 1 scan0032 | |
| The addition of a brake pedal pull-off spring and modification of the clutch operating spring to commonise them. | 28th Feb 1941 | Box 110 \ 1 scan0033 | |
| Drawings for brake drum liners and brake drums for the Experimental Car Senior Range. | 5th Mar 1941 | Box 110 \ 1 scan0034 | |
| Letter to Automotive Products Co., Ltd. regarding the supply of drawings for 'Myth' brakes and a pull-off spring for the brake pedal. | 6th Mar 1941 | Box 110 \ 1 scan0035 | |
| Letter to Automotive Products Co., Ltd. regarding the supply of brake drums and enclosing drawings for 'Myth' brakes. | 6th Mar 1941 | Box 110 \ 1 scan0036 | |
| Listing parts required for one front and rear drum assembly. | 28th Mar 1941 | Box 110 \ 1 scan0037 | |
| Handbrake position and lever design for the 'Myth' model. | 28th Mar 1941 | Box 110 \ 1 scan0038 | |
| Handbrake design and position for the 'Myth' project, referencing drawings PL.450 and PL.504. | 28th Mar 1941 | Box 110 \ 1 scan0039 | |
| Handbrake position for the 'Myth' vehicle. | 28th Mar 1941 | Box 110 \ 1 scan0040 | |
| Handbrake position for the 'Myth' project, referencing drawing PL.430. | 28th Mar 1941 | Box 110 \ 1 scan0041 | |
| List of parts and drawing numbers for the M.40 Test Rig, focusing on the pedal assemblies and frame fittings. | 16th Apr 1941 | Box 110 \ 1 scan0042 | |
| Parts list for brake and accelerator pedals, and associated components, continuing section 7100. | 16th Apr 1941 | Box 110 \ 1 scan0043 | |
| New parts and required standard parts for the M.40 Test Rig, focusing on the handbrake lever and frame fittings. | 18th Apr 1941 | Box 110 \ 1 scan0044 | |
| Parts list for the M.40 Test Rig, detailing the Handbrake Lever & Mechanism. | 28th Jun 1941 | Box 110 \ 1 scan0045 | |
| List of parts, including those supplied by Bowden Engineering Co., with instructions for a work scheme. | 28th Jun 1941 | Box 110 \ 1 scan0046 | |
| Parts and instructions for the M.40 Test Rig, section 6170, concerning the Rear Hub. | 2nd Jul 1941 | Box 110 \ 1 scan0047 | |
| Letter from Bowden (Engineers) Ltd. regarding supply difficulties for assemblies due to wartime production priorities. | 7th Jul 1941 | Box 110 \ 1 scan0048 | |
| Letter from Automotive Products Company regarding the development of a Master Cylinder and brake parts. | 9th Jul 1941 | Box 110 \ 1 scan0049 | |
| Page 2 of a letter from Automotive Products Company Limited discussing a 1' Tandem Master Cylinder. | 9th Jul 1941 | Box 110 \ 1 scan0050 | |
| Request to Automotive Products, Ltd. for drawings of brake shoes, pull-off springs, and liners for the 'Myth' project. | 10th Jul 1941 | Box 110 \ 1 scan0051 | |
| Requesting the expediting of parts for 'Myth Brakes' assemblies sent to Lockheed's for testing. | 10th Jul 1941 | Box 110 \ 1 scan0052 | |
| Parts required for a Test Rig, specifically the Front Hub assembly and associated components. | 11th Jul 1941 | Box 110 \ 1 scan0053 | |
| Production of M.40 Test Rig handbrake parts due to supply issues from Bowden Engineering Co. | 15th Jul 1941 | Box 110 \ 1 scan0054 | |
| Letter to the Lockheed Hydraulic Brake Co. regarding an order for 'Myth Brakes' and discussion on lining materials. | 22th Aug 1941 | Box 110 \ 1 scan0055 | |
| Letter from Automotive Products Company concerning an order for brake equipment for the 'Myth' car and advising against a specific brake spider design. | 29th Aug 1941 | Box 110 \ 1 scan0056 | |
| Letter discussing brake lining performance, testing procedures, and the supply of aluminium castings. | 29th Aug 1941 | Box 110 \ 1 scan0057 | |
| Letter to Automotive Products Co., Ltd. regarding equipment sets, a back plate design, and arranging a visit. | 31th Aug 1931 | Box 110 \ 1 scan0058 | |
| Letter from Parnell of Lockheed's and the subsequent reply. | 31th Aug 1941 | Box 110 \ 1 scan0059 | |
| Letter to Automotive Products Co. Ltd. regarding 'Myth' brakes and a brake carrier plate. | 1st Sep 1941 | Box 110 \ 1 scan0060 | |
| Stiffened front brake carrier plate for the 'Myth' project, discussing test failures and supply arrangements with Lockheed. | 15th Sep 1941 | Box 110 \ 1 scan0061 | |
| Letter to Automotive Products Co. Ltd. discussing drawings and requesting details for brake drums and other components. | 15th Sep 1941 | Box 110 \ 1 scan0062 | |
| Confirming telephoned instructions to the Iron Foundry regarding the production of cast iron rings for brake drums. | 22th Sep 1941 | Box 110 \ 1 scan0063 | |
| Change to the brake drums for the 'Myth' project to use standard Lockheed carrier plates. | 15th Oct 1941 | Box 110 \ 1 scan0064 | |
| Delay in receiving M.40 test rig parts from Lockheeds. | 24th Mar 1942 | Box 110 \ 1 scan0065 | |
| Carburettor options for the Myth engine, induction systems, and the procurement of a by-pass filter. | 24th Jul 1940 | Box 110 \ 1 scan0066 | |
| Drawings for the Crank & Camshaft Layout. | 13th Nov 1940 | Box 110 \ 1 scan0067 | |
| Use of cast-iron camshafts on the 'Myth' project based on information in the I.A.E. Journal. | 5th Mar 1940 | Box 110 \ 1 scan0068 | |
| Confirming the agreed specifications for the 'Myth' camshaft. | 8th Mar 1941 | Box 110 \ 1 scan0069 | |
| Specifications and design of 'Myth' cam forms, PL.534 and PL.535. | 22th Apr 1941 | Box 110 \ 1 scan0070 | |
| Camshaft specifications, materials, and supplier issues. | 22th Apr 1941 | Box 110 \ 1 scan0071 | |
| Camshaft prints for the M.40 Test Rig, discussing the preference for Monikrom material over S/ZN. | 19th May 1941 | Box 110 \ 1 scan0072 | |
| General information on camshafts, including acceleration, deceleration, and tappet velocity data for various engines. | 26th May 1941 | Box 110 \ 1 scan0073 | |
| Analysis of cam loading and valve gear performance for various engine designs. | 26th May 1941 | Box 110 \ 1 scan0074 | |
| Investigation into the effect of a clutch disc on transmission rattle for chassis B.22.AW. | 30th Dec 1940 | Box 110 \ 1 scan0075 | |
| Design of the clutch actuation mechanism for the 'Myth' model, comparing it to the Senior Range. | 4th Feb 1941 | Box 110 \ 1 scan0076 | |
| Clutch modification involving a print for the bottom cover and felt seal, which modifies a previous scheme. | 28th Mar 1941 | Box 110 \ 1 scan0077 | |
| List of parts for the Flywheel & Clutch section of the M.40 Test Rig. | 9th Apr 1941 | Box 110 \ 1 scan0078 | |
| Parts list and instruction for the M.40 Test Rig, detailing components for the PL.355 Flywheel Clutch and PL.503 Clutch Actuation. | 30th Apr 1941 | Box 110 \ 1 scan0079 | |
| Parts and prints for the M.40 Test Rig Flywheel and Clutch assembly. | 27th Jun 1941 | Box 110 \ 1 scan0080 | |
| Parts list for a clutch assembly and its associated components. | 27th Jun 1941 | Box 110 \ 1 scan0081 | |
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