| Description | Date | Identifier | |
| Valve patterns for Condor experiments, requesting a thorough test of the umbrella type. | 18th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan101 | |
| Providing scheme 2090 for the outline of frame side members and related dimensions to facilitate ordering. | 19th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan102 | |
| Four unusual features of a new hydraulic shock damper design. | 20th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan103 | |
| Proposals for reducing the weight of the Phantom engine. | 21th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan104 | |
| List of proposed design alterations for engine components with accompanying sketches. | 21th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan105 | |
| Design modifications to an aluminium head, crankcase, and the Falcon 10 engine. | 23th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan106 | |
| Driver visibility issues due to steering wheel and radiator height, and a proposal to raise the 'D' steering. | 23th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan107 | |
| Requesting an experiment to increase the thread diameter of frame tie-bars. | 23th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan108 | |
| Technical memorandum regarding proposed modifications and improvements to a sequence starter mechanism. | 24th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan109 | |
| From 'R' to 'HS' discussing car speeds at Brooklands, comparing an older model's performance to a newer one. | 24th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan110 | |
| Alteration to an engine mounting bracket and recommendations for fixing tubes. | 24th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan111 | |
| Chassis modifications for carrying a rear spare wheel and repositioning the petrol filler. | 25th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan112 | |
| Solution for a sequence starter issue by altering the press button design. | 25th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan113 | |
| Development of a new lighter front axle and steering modifications for Phantom models. | 25th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan114 | |
| Experiments to improve petrol consumption by heating the throttle and carburetter. | 25th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan115 | |
| The progress and potential testing of a differential across the clutch casing for the 10,000 miles car. | 26th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan116 | |
| Internal query regarding the exact specification of a front axle fitted to a car. | 26th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan117 | |
| Scheme 2095, detailing clearances for front axle components such as the brake rod and steering lever. | 27th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan118 | |
| The arrangement of a spare wheel carrier for the EAC.1 chassis, including provision for balloon tyres. | 27th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan119 | |
| Scheme 2094 for a new front axle, including details for two different track widths. | 27th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan120 | |
| Scheme 2093 for the front end frame arrangement, lock clearance, and steering tube shape. | 27th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan121 | |
| Scheme 2092 for a steering column mounting arrangement and a related crankcase modification. | 27th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan122 | |
| Scheme 2096 for front axle forgings, front brake operating gear, and spring pads. | 1st Nov 1925 | West Wittering \ N \ October1925-December1925 Scan123 | |
| Modification to the combined rear anchorage of front springs and front bracket for the tie-bar. | 27th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan124 | |
| Sending scheme 2097, which details modifications to the steering box and rocker shaft. | 11th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan125 | |
| Design error for the Phantom's aluminium head and cylinders, stating the work is not ready to proceed. | 1st Dec 1925 | West Wittering \ N \ October1925-December1925 Scan126 | |
| Thrust test results for bearing No.215 as a replacement for No.313, with associated drawing modifications. | 4th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan127 | |
| Calculations and observations regarding frame and chassis distortion. | 12th Apr 1925 | West Wittering \ N \ October1925-December1925 Scan128 | |
| Suggestions to reduce petrol loss from the petrol tank due to an air lock. | 5th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan129 | |
| Outlining a scheme for carrying a spare wheel at the rear of a sports car. | 12th May 1925 | West Wittering \ N \ October1925-December1925 Scan130 | |
| Scheme 201 regarding a single-point lubrication experiment for the front axle. | 5th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan131 | |
| Braking distance test results for a Phantom vehicle in defence of a dangerous driving charge. | 12th May 1925 | West Wittering \ N \ October1925-December1925 Scan132 | |
| Plans to lighten an engine for a chassis by changing parts, rather than a full redesign. | 8th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan133 | |
| Revised list of proposed alterations for reducing the weight of the Phantom engine. | 9th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan134 | |
| Weight reduction and material substitution for engine components, particularly for a lighter experimental Phantom engine. | 23th Nov 1925 | West Wittering \ N \ October1925-December1925 Scan135 | |
| New scheme for a sheet metal front cross member and radiator suspension. | 10th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan136 | |
| Potential developments for the Phantom chassis experimental work, covering steering, shock absorbers, bonnets, and the petrol feed system. | 10th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan137 | |
| Court case won by Mr. Minchin concerning vehicle stopping distances and brake quality. | 10th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan138 | |
| Potential design improvement for wheel carriers on the Phantom model in France. | 10th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan139 | |
| Axle design modifications, specifically pivot placement and toe-in, to address high-speed steering wobble. | 11th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan140 | |
| Testing procedures for the Falcon engine without a supercharger and modifications to the timing gear drive. | 11th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan141 | |
| Modifications to the Falcon 10 engine's water pipes and magneto driving gear. | 11th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan142 | |
| Instructions for testing the RR. E.16 engine without its supercharger, proposing the use of simple carburetters and addressing potential timing gear vibrations. | 11th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan143 | |
| Modifications for the India gearbox and floorboard clearance. | 14th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan144 | |
| Finding a suitable thrust bearing, comparing the 'New Departure' type favorably against the 'Curtiss' model. | 15th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan145 | |
| Proposing and comparing schemes to improve carburation by managing the temperature of water or air supplied to the engine. | 17th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan146 | |
| Properties and potential applications of Firth's Staybright steel. | 17th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan147 | |
| Revisions, material specifications, and strength tests for spherical seated unions for standardization. | 19th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan148 | |
| The front axle, referencing scheme 2102 and drawing N. scheme 2094. | 19th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan149 | |
| Modifications to the front axle, including the steering levers and bolts. | 19th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan150 | |
| Failure of a luggage carrier during a 10,000-mile trial and proposing an improved, drop-forged design. | 21th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan151 | |
| Outlining concerns about a new chassis underframe and recommending a cautious, experimental approach. | 21th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan152 | |
| Delay in licensing for a 20HP car and parts for chassis 46-PK. | 22th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan153 | |
| Preferred steering lever design for the front axle. | 22th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan154 | |
| Revising the frame side member to accommodate a 66 inch rear spring. | 22th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan155 | |
| Two design schemes, N. scheme 2112 (sheet metal pressing) and N. scheme 2113 (forging), for a new front suspension arm. | 23th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan156 | |
| Standardisation and modifications for a battery ignition distributor head and base. | 23th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan157 | |
| Positioning of the starting handle and Mr. Royce's preference for improving the electric starter. | 23th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan158 | |
| Design and lubrication method for a Kennedy Spring model provided by its inventor. | 24th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan159 | |
| Modifications to a spare wheel carrier to overcome difficulties arising from the use of a 36' frame. | 24th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan160 | |
| Fitting EAC 7 & 8 chassis with the latest type flexible skirt pistons. | 30th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan161 | |
| Modifications to the New Phantom starter drive, including a revised reduction ratio. | 30th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan162 | |
| Patentability of the Kennedy Spring and the issues of using brass interleaves. | 31th Dec 1925 | West Wittering \ N \ October1925-December1925 Scan163 | |
| Endurance test of 'pedestal' type pistons for Phantom engines, investigating piston knocks and fractures. | 1st Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan001 | |
| Comparison of a pedestal piston against a standard pattern piston, discussing knocks, clearance, flexibility, and running-in procedures. | 1st Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan002 | |
| Comparison of mechanical efficiency between standard and pedestal pistons, and a description of piston knock characteristics. | 1st Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan003 | |
| Experiments to investigate and reduce engine knock using rubber washers, different piston types, and extra oiling. | 1st Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan004 | |
| Experiments to mitigate a cylinder knock by fitting a steel sleeve over the cylinder skirt, including a blueprint diagram. | 1st Oct 1925 | West Wittering \ O \ 2April1926-June1926 Scan005 | |
| Report page on engine knock testing, including a diagram of a cylinder and analysis of stiffening cylinder skirts. | 1st Oct 1925 | West Wittering \ O \ 2April1926-June1926 Scan006 | |
| Investigation into piston knock, theorizing it is caused by resonance rather than oil film breakdown or piston deflection. | 1st Oct 1925 | West Wittering \ O \ 2April1926-June1926 Scan007 | |
| Summary of test results on pedestal pistons, including failures during endurance tests and issues with piston knocks. | 12th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan008 | |
| The erosion of valve seats on Phantom and aero engines. | 12th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan009 | |
| Tests of a 20 HP dynamo using various special solid and laminated pole pieces. | 15th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan010 | |
| Test results on the Phantom's suspension, focusing on spring stiffness and its effect on ride comfort. | 15th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan011 | |
| Effect of fitting front-wheel brakes on the springing of the Phantom and Silver Ghost models. | 15th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan012 | |
| Suspension complaints and ride comfort, comparing different car models and springing technologies. | 16th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan013 | |
| Difficulties of testing and improving vehicle suspension systems and ride quality. | 16th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan014 | |
| Suspension tests, discussing damping, spring strength, and comparing various cars including the Phantom and Lancia. | 16th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan015 | |
| Comparative test report on suspension performance for the Phantom and 20 HP models. | 7th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan016 | |
| Experiments to resolve squeaking front brakes by treating brake linings with lubricants. | 7th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan017 | |
| The delay of car EAC.8 due to supply issues with a lightened front axle, and detailing its steering modifications. | 17th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan018 | |
| Crude method developed to compare the riding qualities and suspension of the 40/50 model using water spillage as a measure. | 1st Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan019 | |
| Continued report on suspension performance, comparing shock dampers, tyre pressures, and spring configurations on various car models. | 1st Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan020 | |
| Suspension tests investigating the effects of adjusting shock dampers and moving the vehicle's centre of gravity. | 1st Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan021 | |
| Ride quality test comparing different vehicle models by measuring water displacement. | 1st Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan022 | |
| Technical discussion on front spring deflection, its effect on ride comfort, and high-speed stability issues. | 1st Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan023 | |
| Diagram of a weight distribution test on a Phantom model chassis. | 1st Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan024 | |
| The causes of tappet noises in the Phantom engine and tests on different push rod materials to reduce expansion. | 1st Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan025 | |
| Valve material tests, detailing clearance changes under heat and load conditions. | 22th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan026 | |
| Bumping test failure of a 20 HP steering support bracket. | 22th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan027 | |
| Continued report on a wheel bump test, detailing results and next steps for testing brackets. | 4th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan028 | |
| Experiments to reduce noise in the Phantom ignition governor relay by adjusting magneto friction and springs. | 4th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan029 | |
| Technical report page discussing the performance and issues of an ignition relay piston and advance curve. | 4th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan030 | |
| Graph and report on engine ignition advance curves and governor design modifications. | 4th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan031 | |
| List of alterations for a 10,000-mile relay test on 12-EX, including governor and piston modifications. | 4th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan032 | |
| Graph showing ignition advance curves against engine RPM. | 23th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan033 | |
| Test report on Phantom suspension modifications and their effect on ride quality. | 23th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan034 | |
| Comparison of vehicle riding comfort and suspension performance through a series of tests on the Phantom, Silver Ghost, and Hispano Suiza models. | 23th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan035 | |
| Vehicle suspension and ride comfort tests, comparing the Silver Ghost and Phantom models. | 23th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan036 | |
| Investigation into suspension issues with shackles and spring seats affecting riding comfort. | 23th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan037 | |
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