| Description | Date | Identifier | |
| Comparative weight analysis table for two different engine configurations. | 8th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan101 | |
| Braking issues and disappointing speed on a trails car. | 8th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan102 | |
| Comparison of straight road speeds between the Hawk-Northcliffe and EAC engines. | 8th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan103 | |
| Suggesting design improvements and alternatives for E.A.C. magneto fabric couplings. | 8th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan104 | |
| Suggestion for an exhaust cutout system using an internal single butterfly valve. | 2nd Aug 1924 | West Wittering \ L \ Jan1924-March1924 Scan105 | |
| Sending a draughtsman to Le Canadel and the resulting delay to projects EAC.3 and EAC.1V. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan106 | |
| Secret internal memo discussing improvements to brake systems, specifically regarding 'jaggers' and backward efficiency. | 2nd Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan107 | |
| The performance and speed tests of trials car 46-PK, comparing it to car 107-MG. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan108 | |
| Issues with steering and braking performance and proposed modifications. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan109 | |
| Design of a lower ejector and a cutout valve for an engine. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan110 | |
| Secret memorandum suggesting slight modifications for a carburetter design. | 2nd Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan111 | |
| Graph comparing the performance of a standard silencer versus a cut-out silencer on a Goshawk II engine. | 12th Oct 1922 | West Wittering \ L \ Jan1924-March1924 Scan112 | |
| Potential increase in diameter for magneto and dynamo couplings for the Goshawk engine. | 2nd Feb 1934 | West Wittering \ L \ Jan1924-March1924 Scan113 | |
| Trials car, detailing engine horsepower, specifications, and modifications. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan114 | |
| Modifications to an engine and chassis, including a Knavs Carburetter, clutch, and braking system. | 12th Jul 1923 | West Wittering \ L \ Jan1924-March1924 Scan115 | |
| Car's road performance, detailing steering, suspension, weight, and engine characteristics. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan116 | |
| Performance issues and modifications on a test car. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan117 | |
| Inconsistent braking issues and the difficulty of equalizing four-wheel brakes. | 12th Jul 1923 | West Wittering \ L \ Jan1924-March1924 Scan118 | |
| Piston compression ratios, over-oiling, and ignition systems for the EAC car. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan119 | |
| Magneto, its automatic advance, and starting handle mechanism. | 9th Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan120 | |
| Design of an oil retainer, magneto ignition governing, and controls for the 3rd E. A. C. Engine. | 1st Feb 1924 | West Wittering \ L \ Jan1924-March1924 Scan121 | |
| Friction losses in a slow-speed plate servo. | 29th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan122 | |
| Design decisions and maintenance requirements for a servo mechanism. | 27th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan123 | |
| Secret memo detailing design changes to the RRM Brake System, specifically thread angles and lever dimensions. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan124 | |
| Drawing No. LeC. 1855 for a gravity clutch brake to be tried experimentally. | 27th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan125 | |
| Calculations and justifications for the lever lengths in an agreed brake system servo. | 27th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan126 | |
| Calculations and analysis of a servo-assisted braking system, focusing on friction, load, torque, and thread angles. | 27th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan127 | |
| Page of calculations and instructions regarding servo torque, jaw load, friction, and lever modifications. | 28th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan128 | |
| Design and modification of an EAC exhaust system, referencing specific blueprints and addressing valve rattling. | 28th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan129 | |
| With diagrams discussing the design and mounting of an actuator coil for a sequence starter. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan130 | |
| Secret memo regarding improved exhaust systems, asking if full scale designs should proceed and if a larger manifold is needed for EAC. 3. | 28th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan131 | |
| Tests conducted on a W.W.111. type servo. | 26th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan132 | |
| Servo performance under load, detailing deflection, cooling, and mechanical advantage test results. | 28th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan133 | |
| Test report on servo performance under different speeds and loads. | 25th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan134 | |
| The performance tests of a slow speed servo motor, including torque ratio, mechanical efficiency, and deflection. | 25th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan135 | |
| Secret internal memo discussing mechanical gain, friction loss, and testing theories for braking schemes. | 26th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan136 | |
| Technical memorandum discussing modifications to a switchbox for ignition systems. | 25th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan137 | |
| Design issues and proposed solutions for a servo mechanism, including thread angles, cone schemes, and lever adjustments. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan138 | |
| Brake system design, including floating levers, servo assistance, and pedal movement. | 23th Jan 1924 | West Wittering \ L \ Jan1924-March1924 Scan139 | |
| Brake rod adjustments and servo-assisted operation schemes. | 21th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan140 | |
| Request for a model or drawing of an improved type of contact breaker before it can be approved for standardisation. | 21th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan141 | |
| Request for a model or drawing of an improved contact breaker for a standard E.O.6 magneto prior to its standardisation. | 21th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan142 | |
| With diagrams discussing the design of a starter actuating device. | 19th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan143 | |
| From 'R' discussing design modifications for a servo shaft, including an annotated diagram. | 19th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan144 | |
| Reinforcement scheme for the rear anchorage of front springs due to frame buckling. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan145 | |
| Alterations to an ignition switchbox and an alternative proposal. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan146 | |
| Pressure specifications for electric starter actuator and pinion springs. | 3rd Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan147 | |
| Goshawk dynamo commutation experiments comparing different brush materials and commutator types. | 7th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan148 | |
| Examination of various dynamos and their brushes after completing specific mileages. | 17th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan149 | |
| Analysis of test results comparing the performance of different dynamo brushes and commutators. | 7th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan150 | |
| Bad commutation in dynamos due to improperly removed mica from slots and plans for further investigation. | 7th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan151 | |
| 20 HP car fitted with a 3-speed gearbox and right-hand levers, discussing its weight, design, and operational feedback. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan152 | |
| Modifications to the Hawk gearbox, including fitting weaker springs and preventing the mat from fouling the change speed lever. | 4th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan153 | |
| Specification for the electrical operation and performance of a 12-volt dynamo for the 40/50 car model. | 4th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan154 | |
| Specifications for dynamo performance under hot conditions, detailing output, weight, and size constraints. | 4th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan155 | |
| Revised specification for the electrical operation of a 12-volt dynamo system for Mr. Cobham. | 4th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan156 | |
| Dynamo performance specifications detailing speed, voltage, ampere output, and physical constraints. | 4th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan157 | |
| Potential solutions for engine retard vibrations. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan158 | |
| Secret memorandum discussing improvements to the exhaust, silencer, and cutout system for the E.A.C. engine. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan159 | |
| Car test, detailing brake performance, servo adjustments, and exhaust modifications. | 13th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan160 | |
| Bump test causing frame fractures and front spring failures. | 12th Jul 1923 | West Wittering \ L \ Jan1924-March1924 Scan161 | |
| Drawing illustrating the location of cracks in a mechanical linkage assembly in two views. | 11th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan162 | |
| Graph showing ampere output curves of an EAC Dynamo under various conditions. | 11th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan163 | |
| Overrun vibration on the E.A.C. engine, concerning fitting Hawk connecting rods. | 10th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan164 | |
| Development and testing of two brake servo schemes, with considerations for patents. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan165 | |
| Instructions concerning the rear step iron for the Goshawk 11 experimental body suspension. | 3rd Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan166 | |
| Distribution and review of a drawing for a starter motor actuator. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan167 | |
| Ratios of connecting rod length to crank radius for various engines and discussing piston acceleration. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan168 | |
| Technical note comparing vibration and connecting rod length between Goshawk I and Goshawk 11 engines. | 11th Aug 1920 | West Wittering \ L \ Jan1924-March1924 Scan169 | |
| Graph showing acceleration at the end of a piston stroke versus the ratio of crank radius to connecting rod length for various engines. | 7th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan170 | |
| Secret memo from 'R.' to 'Ry.' concerning steering troubles, bad geometry, and shocks. | 7th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan171 | |
| Secret internal memo discussing the design and rating of springs in steering tubes. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan172 | |
| Secret internal memo discussing improvements for brake protection. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan173 | |
| Secret memo from 'R.' to 'E.A.C.' concerning delays in the Starter Motor project. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan174 | |
| Secret memo discussing reasons for not changing from Lucas dynamos and suggesting re-winding armatures in-house due to cost. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan175 | |
| Modifications to a stiffer engine coupling shaft, with a diagram and notes on engine vibration. | 4th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan176 | |
| Brake operation, comparing the effects of braking on 2 vs 4 wheels, and evaluating alternative brake system schemes. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan177 | |
| Secret internal memo from 'R.' regarding a magneto wiring arrangement. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan178 | |
| Secret memo discussing the decision to retain Lucas dynamos for the EAC.3 and proposing to rewind armatures in-house. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan179 | |
| Required properties of friction materials for a servo mechanism. | 4th Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan180 | |
| Power loss in the EAC engine due to its 6-cylinder exhaust manifold. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan181 | |
| Table comparing B.HP performance with different carburettor and exhaust configurations at various R.P.M. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan182 | |
| Advantages of a modified semi-servo brake system and patent implications. | 1st Mar 1924 | West Wittering \ L \ Jan1924-March1924 Scan183 | |
| From Hs. to DA. regarding particulars of friction losses in the WW. servo brakes and suggestions for further tests. | 29th Mar 1934 | West Wittering \ L \ Jan1924-March1924 Scan184 | |
| Oil consumption and bearing test on a 2-C-1V (Direct Drive) engine. | 29th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan0 | |
| Reducing servo gear noise by allowing torsional movement on the serrations. | 1st Sep 1924 | West Wittering \ L \ July1924-September1924 Scan1 | |
| Modifying 20 HP exhaust fittings (schemes 563 & 564) to eliminate vibration. | 20th Mar 1924 | West Wittering \ L \ July1924-September1924 Scan4 | |
| Exhaust boom noise, comparing two silencer mounting schemes and recommending one for standardisation. | 20th Feb 1934 | West Wittering \ L \ July1924-September1924 Scan5 | |
| Sample of a steering pivot bush lined with Kelmet metal. | 26th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan6 | |
| The incompatibility of low pressure balloon tyres with the cross steering levers on 40/50 HP models with 4-wheel brakes. | 9th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan7 | |
| P & R batteries for the 20 HP model, discussing paste types, separators, and cell cases. | 22th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan8 | |
| Experimental treatments and observations of P & R batteries, discussing components like separators, plates, and cell cases. | 22th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan9 | |
| Progress report on the life test of a 20 HP size battery. | 22th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan10 | |
| Experimental battery variations and mileage tests on different cell cases. | 22th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan11 | |
| Report discussing the standardisation of a 20 HP battery and its components between the Exide Co. and P & R Co. | 22th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan12 | |
| The performance of experimental batteries and proposed standardization. | 22th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan13 | |
| Data table showing results of radiator tests on a Hispano car, with and without the bonnet. | 22th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan14 | |
| Graph comparing heat flow versus horsepower at the road wheels for the 40/50 HP and Hispano models at full load. | 22th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan15 | |
| Graph comparing heat flow to jacket water and heat dissipated by radiators for 40/50 HP and Hispano engines in still air. | 22th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan16 | |
| Standardisation sheet cancelling a previous update regarding 25% stiffer front springs, brackets and shackles. | 16th Sep 1924 | West Wittering \ L \ July1924-September1924 Scan17 | |
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