| Description | Date | Identifier | |
| Comparing two engine torque curves and their effect on car acceleration performance. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan37 | |
| The fundamentals of car performance and methods for comparing efficiency. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan38 | |
| Car performance, specifically wind resistance and hill climbing. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan39 | |
| Vehicle acceleration and hill-climbing capabilities. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan40 | |
| With a graph showing the acceleration equivalent of hill climbing. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan41 | |
| High-speed performance, discussing wind resistance, exhaust systems, and streamlining with a performance graph. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan42 | |
| Gear ratios in relation to wind resistance and the fundamental laws of braking. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan43 | |
| Factors affecting car braking, including the co-efficient of friction, weight of the car, and gradients. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan44 | |
| Page detailing the physics of vehicle retardation and braking distances under various conditions. | 12th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan45 | |
| Vehicle braking performance, including a graph of road speed vs. time to rest. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan46 | |
| Two graphs illustrating braking performance, showing extra work due to rotating masses and retardation from windage. | 3rd Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan47 | |
| Tests of a non-return valve in the 'Phantom' vacuum feed system to reduce engine fading. | 3rd Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan49 | |
| Objectionable exhaust noise on the Phantom chassis. | 12th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan50 | |
| Shortening an exhaust pipe to reduce noise, with comparative B.HP data. | 12th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan51 | |
| Experiments to improve cutout contact points for a 20 HP chassis, seeking Mr. Royce's feedback. | 13th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan52 | |
| The performance of a 20 HP rear axle bevel pinion thrust bearing after a 10,000-mile test, recommending its adoption. | 1st Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan53 | |
| Tests for 20 HP rear axle bevel pinion thrust bearings. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan54 | |
| Various thrust bearing tests. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan55 | |
| Preventing fumes from entering the car body on the Phantom and 20 HP models. | 14th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan56 | |
| Experimental EAC.1 chassis and plan to complete it with standard parts. | 4th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan57 | |
| The build specifications for the EAC.1 'D' type chassis. | 14th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan58 | |
| Page detailing specifications for a gearbox, pedals, shafts, and other vehicle components. | 14th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan59 | |
| Issues with the 'Phantom' 4-wheel brake equaliser link, causing thumping due to insufficient friction. | 14th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan60 | |
| Potential use of duralumin rockers and bearing caps for 'Phantom' weight reduction. | 15th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan61 | |
| Cover memo for an attached list detailing work in progress within the Experimental Department. | 15th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan62 | |
| The work in production for various vehicle components and projects. | 14th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan63 | |
| Tasks with their order of urgency for various vehicle models. | 1st Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan64 | |
| The development status and order of urgency for Condor, Eagle, and Falcon engines. | 14th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan65 | |
| Tests in progress for the New Phantom model, ordered by urgency. | 15th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan66 | |
| Tests and improvements with an order of urgency for Goshawk, Condor, and Eagle models. | 14th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan67 | |
| List of principal electrical experimental work in hand, categorised by component and urgency. | 15th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan68 | |
| Order of urgency list for modifications and investigations into dynamos, regulators, and starter motors. | 6th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan69 | |
| Weight reduction on the 'Phantom' model by favouring the short chassis over the long one. | 15th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan70 | |
| 'India' pivot pin bushes, discussing lubrication issues and suggesting design changes. | 15th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan71 | |
| Blueprint showing the addition of friction washers to an axle assembly and modification of a nut. | 15th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan72 | |
| Duralumin brake carrier supply issues and front axle weight reduction for the 8-EX car. | 15th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan73 | |
| Centralized chassis lubrication schemes, mentioning the Phantom car, Enots Lubricators, and a sample Bijur system. | 15th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan74 | |
| Testing and implementation of the Bijur chassis lubrication system. | 15th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan75 | |
| Centralized lubrication systems, their market adoption, and benefits for steering. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan76 | |
| Lubricating the steering pivots for the Phantom model. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan77 | |
| Cross-section diagram of a lubricator with dimensional modification notes. | 15th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan78 | |
| The strength of the 'India' front axle. | 16th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan79 | |
| Torsion test results for a 20 HP front axle, showing load versus permanent set and deflection profile. | 7th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan80 | |
| The New Phantom exhaust cutout, detailing issues with a weak spring causing leaky valves. | 16th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan82 | |
| Oil flinging issues related to Goshawk universal joint lubrication. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan83 | |
| Correcting oil leaks from a joint and exploring alternative lubrication methods. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan84 | |
| Continued note on grease lubrication procedures for joints and intensifiers during testing and use. | 20th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan85 | |
| Comparing the performance of the new 6 1/2 Litre Bentley to the New Phantom. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan86 | |
| Comparing the performance specifications of the Phantom and Bentley against other contemporary cars. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan87 | |
| Performance graph comparing Flywheel B.HP against Engine R.P.M. for a 'New Phantom' and a 'Bentley'. | 23th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan88 | |
| Car road tests on a 40 HP Fiat and 19-HP Austro-Daimler, concluding against purchasing them. | 23th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan89 | |
| The road trial of a 40 HP Fiat. | 20th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan90 | |
| Issues with tappet noise, gearbox operation, and clutch performance. | 23th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan91 | |
| The performance of the vehicle's brakes and steering systems. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan92 | |
| Car's steering, suspension, and road performance. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan93 | |
| Car performance, including acceleration tests on Brockley Hill and analysis of the engine and braking systems. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan94 | |
| Page 6 of an experimental report detailing vehicle test findings and general impressions. | 23th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan95 | |
| Experimental road trial report for an Austro-Daimler car detailing its specifications and observed features. | 20th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan96 | |
| Assessing the performance of the camshaft, gearbox, clutch, and steering. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan97 | |
| The performance of a vehicle's steering, brakes, rear axle, suspension, and cooling system. | 23th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan98 | |
| The road performance and acceleration figures of a test car, including a comparison to a Phantom car. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan99 | |
| Comparing the performance of a 20 HP car against an Austro-Daimler, with a focus on engine efficiency. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan100 | |
| Engine silencing, weight saving and a performance comparison to a Chrysler. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan101 | |
| Investigating high speed steering wobbles by modifying leaf springs. | 23th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan102 | |
| Interview with the President of the American Bosch Corporation regarding an automatic ignition advance mechanism. | 28th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan103 | |
| Page 2 of a document describing a pressure-operated mechanism for engine ignition control. | 28th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan104 | |
| Automatic ignition adjustment principle based on cylinder working pressures. | 28th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan105 | |
| Engine valve design, comparing poppet and rotary valves. | 28th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan106 | |
| The performance and testing of 'Lovejoy' hydraulic shock absorbers. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan107 | |
| Blueprint drawing illustrating the failure points of a Lovejoy shock absorber after rig testing. | 28th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan108 | |
| Dissatisfaction with the steering freeness on the 8-EX car, delaying a 10,000-mile test. | 28th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan109 | |
| The braking performance of the Phantom model, discussing wheel lock and retardation. | 2nd Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan110 | |
| Inspection and comparison report on a 12 Volt Delco-Remy ignition system. | 3rd Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan111 | |
| Continued analysis of a ballast resistance and primary winding, comparing electrical properties and planning future tests. | 3rd Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan112 | |
| Detailed report on the features of a Delco-Remy Distributor (Model 5249). | 26th Oct 1925 | West Wittering \ N \ 2October1925-December1925 Scan113 | |
| Continued description of a Ballast Resistance and its integration with an automatic cam advance governor. | 2nd Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan114 | |
| The electrical properties and performance of a Delco Coil No. 2178. | 2nd Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan115 | |
| Cover letter discussing notes on the Packard (Splitdorf) single machine double spark magneto. | 3rd Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan116 | |
| Notes regarding the Packard (Splitdorf) Double Spark Magneto system. | 3rd Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan117 | |
| Continued description of a duplicated ignition system's operation, focusing on contact breakers and spark generation. | 1st Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan118 | |
| Typed analysis of duplication in magneto systems, discussing various failure modes and advantages. | 3rd Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan119 | |
| Continued page discussing duplication against short-circuited contact breaker or condenser failure. | 3rd Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan120 | |
| Hand-drawn electrical connection diagram for a dual ignition system. | 4th Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan121 | |
| The effect of pull-off spring strength on thumping in the New Phantom's 4-wheel brakes. | 4th Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan122 | |
| Cover note for a document about the balance of a 16-cylinder aero engine. | 9th Nov 1928 | West Wittering \ N \ 2October1925-December1925 Scan123 | |
| Over-oiling and endurance tests of Lodge detachable plugs for the New Phantom. | 10th Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan124 | |
| Tests on various sparking plugs to determine their capacity for withstanding oil and sooting up on the New Phantom. | 10th Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan125 | |
| Comparing the performance and mileage of various makes of spark plugs for New Phantom engines. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan126 | |
| Car on test, arranging for a temporary body to be fitted and a visit for the following week. | 11th Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan127 | |
| Testing and modifying a silencer for the Phantom model. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan128 | |
| Testing and performance of a Philips A.C. rectifier for charging chassis batteries. | 16th Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan129 | |
| Instruction sheet describing a Philips Rectifier apparatus. | 9th Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan130 | |
| Preliminary electrical tests of an apparatus, noting voltage application and battery charging. | 29th Jun 1920 | West Wittering \ N \ 2October1925-December1925 Scan131 | |
| Instructions detailing observations on the electrical behavior of a valve, noting a purple glow and charging characteristics. | 29th Jun 1920 | West Wittering \ N \ 2October1925-December1925 Scan132 | |
| Report detailing electrical test results for varying numbers of cells. | 29th Jun 1920 | West Wittering \ N \ 2October1925-December1925 Scan133 | |
| Test results and notes on the efficiency of charging electrical cells. | 29th Jun 1920 | West Wittering \ N \ 2October1925-December1925 Scan134 | |
| Instructions detailing the operation of a valve with a filament and plates. | 29th Jun 1920 | West Wittering \ N \ 2October1925-December1925 Scan135 | |
| Observations on the behavior of a circuit with resistance lamps, a valve, and a swivelling link. | 29th Jun 1920 | West Wittering \ N \ 2October1925-December1925 Scan136 | |
| The performance of Auto-Klean strainers on a test bench and in a car. | 16th Nov 1925 | West Wittering \ N \ 2October1925-December1925 Scan137 | |
| Issues with a strainer, including cleaning failures, fluff particles, and a petrol leak. | 12th Jun 1925 | West Wittering \ N \ 2October1925-December1925 Scan138 | |
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