| Description | Date | Identifier | |
| Use of fabric couplings for the magneto and dynamo drive system. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan1 | |
| Difficulty of achieving desired turning circle lock angles on production chassis with front-wheel brakes. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan2 | |
| Confirmation of a telegram suggesting a test on rear brakes by removing the non-wrapping shoe. | 29th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan3 | |
| Secret memo on alterations to the gearbox and engine for a 4-wheel brake system. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan4 | |
| Secret internal memorandum discussing an experiment to double the leverage between the servo and the rear brakes. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan5 | |
| Modifications to the leverage of the brake servo system to address wear. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan6 | |
| The concluding page of a memorandum regarding a copy of a note sent to 'R'. | 11th Aug 1920 | West Wittering \ L \ Jan1924-March1924 Scan7 | |
| Technical memo discussing issues and solutions for front brakes, servo wear, and braking materials. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan8 | |
| Telegram received by telephone detailing an experimental modification to increase brake leverage. | 25th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan9 | |
| Telegram received by telephone detailing an experimental modification to increase leverage by reducing the length of the servo shaft levers. | 25th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan10 | |
| Message on a 'Telegram Received by Telephone' form. | 23th May 1923 | West Wittering \ L \ Jan1924-March1924 Scan11 | |
| Form for a telegram received by telephone, with minimal handwritten entries. | 23th May 1925 | West Wittering \ L \ Jan1924-March1924 Scan12 | |
| Urgent internal secret memo requesting information on turning circles for the 40/50 model. | 24th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan13 | |
| Request for particulars on the Hispano-Suiza locks, turning circles, and steering gear ratio. | 23th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan14 | |
| Secret memo discussing the replacement of front brake pull-off springs with their specifications. | 23th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan15 | |
| Front wheel brake judder, referred to as 'jaggers', and proposing two experimental damper designs to address the problem. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan16 | |
| The development and testing of floating fulcrum brakes for the EAC.2 model. | 11th Aug 1920 | West Wittering \ L \ Jan1924-March1924 Scan17 | |
| Steering issues caused by unequal front braking and suggesting a vertical pivot as a solution. | 11th Aug 1930 | West Wittering \ L \ Jan1924-March1924 Scan18 | |
| Secret internal memo requesting models of E.A.C. valve gear parts for inspection and querying the type of push rods used in tests. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan19 | |
| The testing of the 3rd E.A.C. engine, detailing performance, modifications, and comparisons. | 19th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan20 | |
| Report page comparing ignition timing settings for the 40/50 and EAC models, highlighting the need for automatic advance. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan21 | |
| Technical memorandum comparing the valve lift and valve springs of the E.A.C. engine with the Hawk and Falcon engines. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan22 | |
| Proposal to reduce engine valve lift, discussing the effects on stress, springs, and valve gear components. | 16th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan23 | |
| Breakages in steering and spring components and proposed solutions. | 16th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan24 | |
| Schedule of parts with promised and posted dates, organised by vehicle section. | 16th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan25 | |
| Status report for project 'E.A.C. 4' detailing schedules and modifications for engine, gearbox, and frame components. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan26 | |
| Secret memo discussing required drawing changes and raising questions about the design of an electric sequence starter. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan27 | |
| Effect of uneven braking on steering in four-wheel brake systems and proposing a modification and test. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan28 | |
| Improvements to the front brake compensation and bearing arrangement for four-wheel brakes. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan29 | |
| Requesting clarification on conflicting turning circle figures for the 40/50 long chassis. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan30 | |
| Reliability and design of vibrator control systems for dynamos, comparing the third brush control with the R. Bosch system. | 12th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan31 | |
| Discussion of a Bosch cutout unit's red warning light function and a proposed silent starter motor control. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan32 | |
| The progress of testing E.A.C. engines and preparing modified 40/50 HP cars. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan33 | |
| Engine detonation, noise, vibration issues, and valve spring failures. | 12th Jul 1923 | West Wittering \ L \ Jan1924-March1924 Scan34 | |
| Need for a low note horn and a cutout based on experience in France. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan35 | |
| Wheelbase and chassis length for the Goshawk, 40/50 and 20.HP models. | 7th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan36 | |
| Friction material for slipper flywheels, recommending 'dilecto' to replace fibre washers on 20 HP cars. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan37 | |
| Improvements, drawing Lec.1802, and patenting of the improved sequence silent starter. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan38 | |
| From D.A. to H.S. regarding the despatch of Hispano servo parts and the return of a file on braking. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan39 | |
| Log of breakages recorded during a bump test of a new front axle and brake scheme. | 2nd Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan40 | |
| Breakage log for springs and steering components on a Standard 40/50 model. | 2nd Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan41 | |
| Log of breakages for Woodhead springs and Houdaille shock absorbers, detailing parts and running times. | 2nd Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan42 | |
| Analysis of spring failures during testing, showing average life and fracture positions. | 2nd Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan43 | |
| Bumping tests on a 40/50 chassis with EAC-111. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan44 | |
| Design and performance of a vehicle's braking system. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan45 | |
| Three potential modifications to a steering column design to make it easier to operate. | 1st Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan46 | |
| From 'R' regarding overrun vibration, suggesting a thicker shaft and changes to piston weight and engine suspension instead of a heavier flywheel. | 29th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan47 | |
| Design of a semi-servo braking system, including swivelling friction surfaces and lever proportions. | 29th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan48 | |
| Hand-drawn sketch of a clutch mechanism featuring a swivelling star plate and thrust washers. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan49 | |
| Secret memo regarding the progress and components of the Silent Sequence Starter for the EAC engine. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan50 | |
| 20 HP right-hand change gearbox, noting issues with noisy gears and trapped oil. | 26th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan51 | |
| Troubles and required improvements for the EAC.11 chassis. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan52 | |
| The work required to complete the EAC.11 car. | 22th Sep 1924 | West Wittering \ L \ Jan1924-March1924 Scan53 | |
| Steering tests, investigating deterioration believed to be caused by multiple small modifications. | 12th Jul 1923 | West Wittering \ L \ Jan1924-March1924 Scan54 | |
| Modifications to a front-wheel-brake car, specifically regarding springs, radius rods, and steering. | 12th Jul 1928 | West Wittering \ L \ Jan1924-March1924 Scan55 | |
| Testing to resolve retard vibration on the EAC car. | 12th Jul 1928 | West Wittering \ L \ Jan1924-March1924 Scan56 | |
| Comparing the effects of steel artillery and wire wheels on steering and braking. | 27th Aug 1924 | West Wittering \ L \ Jan1924-March1924 Scan57 | |
| Secret memo discussing experiments with brake shoe designs to improve backward braking. | 27th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan58 | |
| Pausing design work until results are received from scheme 1720 concerning semi-flexible steel shoes. | 11th Aug 1920 | West Wittering \ L \ Jan1924-March1924 Scan59 | |
| Secret memo regarding a blueprint for a Magneto Drive, awaiting Mr. Royce's comments. | 27th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan60 | |
| Secret internal memo requesting further information about Hispano steering. | 27th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan61 | |
| Comparing detonation in Hispano and EAC engines. | 12th Jul 1923 | West Wittering \ L \ Jan1924-March1924 Scan62 | |
| Proposal for magneto ignition wiring. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan63 | |
| Schemes for scuttle isolation on 40/50 and 20.HP car models. | 2nd Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan64 | |
| Dynamo changes, output adjustments, and overheating issues. | 23th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan65 | |
| Gearbox casing and dynamo changes, focusing on dynamo output and overheating. | 23th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan66 | |
| Secret memo about drawing No. LeC 1836 for an E.A.C. clutch, detailing a change from a steel to a Ferodo driven disc. | 22th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan67 | |
| Secret memo discussing the requirements and challenges of testing a larger flywheel on an EAC engine. | 2nd Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan68 | |
| Steering arrangement on a specific car due to failures during bump tests. | 20th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan69 | |
| EAC engine power test using two Claudel carburettors. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan70 | |
| From R. to HS. regarding a Hispano-related matter and a potential arrangement. | 19th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan71 | |
| Secret memorandum from 'R' detailing an examination and suggested modifications for an experimental car's steering system. | 19th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan72 | |
| Improvements and modifications to a steering and front spring arrangement. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan73 | |
| Secret memorandum discussing potential improvements to the steering and front spring arrangement. | 2nd Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan74 | |
| Comparing the weight of the EAC engine against the 40/50 engine. | 2nd Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan75 | |
| Investigations into retard vibrations on the EAC engine. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan76 | |
| The effects of pivot pin slope and castor action on the steering of the EAC car. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan77 | |
| Telegram about using a Goshawk Dynamo as an alternative to altering a Lucas one for project Eac3. | 16th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan78 | |
| Secret internal memo about proportionate braking, servo wear, and the preference for a floating lever equaliser. | 15th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan79 | |
| Design modifications for a lever, including weight reduction and alignment considerations. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan80 | |
| Removing and weighing a Hispano engine unit, comparing its weight to an EAC engine ahead of power curve testing. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan81 | |
| Comparative table of road wheel horsepower for Hispano and EAC engines at various RPMs. | 2nd Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan82 | |
| Suggesting the use of the Brooklands track for safer and more accurate car testing. | 2nd Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan83 | |
| Brake 'jaggers' and backward efficiency, suggesting modifications to brake shoes. | 13th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan84 | |
| EAC clutch, including comparisons, modification suggestions, and vibration analysis. | 19th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan85 | |
| Decisions on vehicle body and chassis design points following a sales visit. | 8th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan86 | |
| Design criticisms and proposed solutions for dipping headlights, scuttle isolation, and a side wheel carrier. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan87 | |
| 20 HP exhaust cut-out, comparing its performance and noise levels against the standard model. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan88 | |
| The issues with exhaust cut-out noise and customer complaints. | 11th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan89 | |
| New sheet metal tail bracket for a Lucas tail lamp, requesting an experimental version for trial. | 12th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan90 | |
| Secret memorandum from 'R' discussing the new EAC steering box design and improvements. | 11th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan91 | |
| Secret memorandum discussing the design of a slow-speed servo brake system, specifically the servo drive and pull mechanisms. | 2nd Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan92 | |
| Braking system design, comparing it with Hispano-Suiza's and proposing improvements for equal braking. | 10th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan93 | |
| Secret memo regarding Mr. Royce's suggested modifications for the EAC 4 carburetter. | 10th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan94 | |
| With a sketch proposing a simpler, stiffer gearbox coupling design to mitigate torsional vibration issues. | 19th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan95 | |
| Cause and potential solutions for over-run vibration in an E.A.C. engine. | 9th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan96 | |
| Standardization of dipping head lamps for the Goshawk. | 9th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan97 | |
| Comparing the weights of EAC and 40/50 engine parts. | 12th Jul 1923 | West Wittering \ L \ Jan1924-March1924 Scan98 | |
| Weight comparison table of components for the E.A.C. engine versus the 40/50 engine. | 12th Jul 1923 | West Wittering \ L \ Jan1924-March1924 Scan99 | |
| Weight comparison table of components between the E.A.C. Engine and the 40/50 Engine. | 25th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan100 | |
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