| Description | Date | Identifier | |
| Toggle principle and pinion operated switch to prevent engine hunting effects. | 1st Oct 1926 | West Wittering \ P \ October1926-November1926 Scan005 | |
| Front axle tests concerning the effect of tyre contact offset on steering when braking on four-wheel brake cars. | 1st Oct 1926 | West Wittering \ P \ October1926-November1926 Scan006 | |
| Steering and braking dynamics, referencing issues with pivots leaning forward and the effects of spring strength. | 1st Oct 1926 | West Wittering \ P \ October1926-November1926 Scan007 | |
| Brake tests and their effect on steering and axle control under various conditions. | 1st Oct 1926 | West Wittering \ P \ October1926-November1926 Scan008 | |
| Continued discussion on steering lock, front axle design, and the advantages of helical springs. | 1st Oct 1926 | West Wittering \ P \ October1926-November1926 Scan009 | |
| Rigging a hydraulic steering damper, including a sketch and initial load findings. | 2nd Oct 1926 | West Wittering \ P \ October1926-November1926 Scan010 | |
| Preliminary test results comparing the lighter Phantom engine to the standard model, focusing on weight, compression, power, and detonation. | 26th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan011 | |
| Analysis of engine performance concerning ignition timing, detonation, turbulence, and modifications to pistons and cylinder heads. | 26th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan012 | |
| Engine performance comparing increased compression ratios, detonation, and various ignition configurations including single, dual, and synchronised. | 18th Sep 1925 | West Wittering \ P \ October1926-November1926 Scan013 | |
| The effects of synchronized ignition on engine efficiency and power under various loads. | 18th Sep 1925 | West Wittering \ P \ October1926-November1926 Scan014 | |
| Report page detailing tests on engine efficiency, ignition timing, and the effects of a cooled exhaust valve on detonation. | 18th Sep 1925 | West Wittering \ P \ October1926-November1926 Scan015 | |
| Engine detonation characteristics, ignition systems, and proposed modifications. | 27th Sep 1926 | West Wittering \ P \ October1926-November1926 Scan016 | |
| Graph comparing power output, ignition advance, and B.M.E.P. against R.P.M. for a new aluminum engine and a standard engine. | 27th Sep 1926 | West Wittering \ P \ October1926-November1926 Scan017 | |
| Comparison of engine efficiency using one versus two synchronized spark plugs under full and throttled load conditions. | 5th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan018 | |
| Experiments on measuring Phantom cylinder wall temperatures. | 1st Oct 1926 | West Wittering \ P \ October1926-November1926 Scan020 | |
| Engine cylinder temperature readings using a thermocouple, including test conditions and a table of results. | 1st Oct 1926 | West Wittering \ P \ October1926-November1926 Scan021 | |
| The effects of compression ratio on heat flow and cylinder temperatures, with plans for further tests on Phantom and Falcon X engines. | 6th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan022 | |
| High-speed performance and acceleration of the Phantom and 20 HP cars compared to competitors like Vauxhall. | 6th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan023 | |
| Performance review of the 20 HP and Phantom models, with comparisons against Sunbeam, Chrysler, Lincoln, and A.C. cars. | 6th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan024 | |
| The performance of a Lincoln's rear suspension and a 6-cylinder A.C. engine. | 6th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan025 | |
| Performance comparison table for various cars over different measured distances. | 6th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan026 | |
| Bar chart comparing the 'Displacement / Ton Mile' of various closed and open cars. | 6th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan027 | |
| Power curve graph for a 6-cylinder, 2-litre A.C. engine. | 7th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan028 | |
| Outlining conclusions from reports on the fault 'Explosion in Silencer'. | 7th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan029 | |
| Tests concerning explosions in the silencer of a Phantom chassis. | 7th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan030 | |
| Engine governor control issues, throttle problems, and resulting explosions or gurgles. | 7th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan031 | |
| Eliminating engine explosions by adjusting the fuel mixture in the induction system. | 7th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan032 | |
| Engine throttle issues, slow running, and causes of firing in the silencer related to throttle wear and carbon deposits. | 7th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan033 | |
| Throttle closing issues caused by gummy carbon deposits and worn spindle bearings. | 7th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan034 | |
| List of general tests carried out regarding explosions in the silencer. | 7th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan035 | |
| List of checks and potential improvements to resolve an unspecified engine fault. | 17th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan036 | |
| Investigations into silencer explosions in the Silver Ghost, comparing them to the Phantom model. | 17th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan037 | |
| Comparison of ignition and throttle mechanisms between the Silver Ghost and Phantom models. | 17th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan038 | |
| Report comparing silencer explosions and fuel mixture requirements for the Silver Ghost and Phantom models. | 8th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan039 | |
| Performance and design of chassis generator and regulator systems, referencing previous reports and experience with various manufacturers. | 8th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan040 | |
| Continued discussion on dynamo systems and battery charging characteristics. | 8th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan041 | |
| The feasibility and reliability of adding an automatic electro-magnetic switch to the dynamo's electrical system. | 8th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan042 | |
| Analysis of an electrical system's reliability concerning the ignition apparatus, ballast resistance, and a relay switch. | 8th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan043 | |
| Description of the operation of a dynamo charging system with an automatic switch. | 8th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan044 | |
| Comparison of three devices for preventing battery overcharging, with a detailed description of the bi-metal strip based Mentor device. | 8th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan045 | |
| Comparison of three electrical system devices: a voltmeter, a 'Mentor' device, and an electro-magnetic switch, based on human interaction. | 8th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan046 | |
| Tests on hydraulic shock dampers for steering on a lighter axle, comparing load requirements for British and Continental conditions. | 8th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan047 | |
| Flexibility test on pedestal pistons compared to standard pistons. | 12th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan048 | |
| Piston flexibility tests, including a diagram of the test rig and a table of results. | 2nd Oct 1926 | West Wittering \ P \ October1926-November1926 Scan049 | |
| Whitemetal bearing tests, examining load carrying capacity with speed and the effect of shell thickness. | 2nd Oct 1926 | West Wittering \ P \ October1926-November1926 Scan050 | |
| Continued report on tests concerning the effect of oil temperature and pressure on bearing life. | 12th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan051 | |
| Investigation into an audible knock from hydraulic shock dampers caused by a small amount of free movement. | 12th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan053 | |
| Undesirable features found during tests of a hydraulic steering damper. | 12th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan054 | |
| Effectiveness of hydraulic damping versus frictional load in the steering system. | 12th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan055 | |
| Tests and apparatus for measuring gas leakage past pistons. | 12th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan056 | |
| Test on air leakage during compression on a standard Phantom engine, with results tabulated by RPM. | 12th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan057 | |
| Engine leakage tests, noting variations with speed and outlining a new method for taking temperature readings. | 18th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan058 | |
| Cylinder and liner temperature tests on the Lighter Phantom engine to investigate piston ring carbonisation. | 18th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan059 | |
| Positioning of couples in a cylinder and the parameters for engine testing, including diagrams. | 18th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan060 | |
| Analysis of liner and cylinder temperatures comparing aluminium and cast iron cylinders under different operating conditions. | 18th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan061 | |
| Test report on engine pre-ignition, liner temperatures, and the effects of varying oil pressure. | 18th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan062 | |
| Summary of engine test results regarding cylinder liner temperatures, pre-ignition, and oil flow. | 10th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan063 | |
| Scheme for fitting dampers to front brake drums to eliminate squeaking. | 10th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan065 | |
| Suspension systems from the Paris Salon, focusing on the Cottin-Desgouttes model. | 22th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan066 | |
| Road test report on an experimental car, detailing issues with suspension, steering, brakes, and a noisy engine and rear axle. | 22th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan067 | |
| The suspension and handling characteristics of Sizaire and 10-HP Ansaldo cars, with comparisons to others. | 22th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan068 | |
| Report page with diagrams and analysis of a car's chassis, suspension, and on-road performance. | 22th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan069 | |
| Comparison of vehicle suspension systems, detailing the Farman rear cantilever leaf spring design. | 22th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan070 | |
| Technical page discussing axle control and suspension systems with blueprint diagrams. | 22th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan071 | |
| Axle control, Hotchkiss drive, and a General Motors device for eliminating crankshaft torsional vibration. | 22th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan072 | |
| Air cleaners and a review of the O.S. Petrol Gauge, including a diagram. | 22th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan073 | |
| Page discussing the stream-lining of a record-breaking Renault and a summary of independent suspension test results. | 25th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan074 | |
| Summary of tests carried out to overcome squeaks from front brakes fitted to a 12-EX model. | 25th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan075 | |
| Continued discussion on vibrations caused by the non-wrapping shoe acting as a wrapping shoe when the car is reversing. | 25th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan076 | |
| Explaining why a new, lighter type of front brake axle is more prone to squeaking and the proposed solution. | 25th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan077 | |
| The receipt and testing of an American Bosch battery ignition unit. | 26th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan078 | |
| Preliminary examination of an American Bosch ignition coil and distributor unit fitted to a chassis in America. | 25th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan079 | |
| Compact and well-designed battery ignition unit, noting its performance and evolution. | 29th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan080 | |
| Technical merits and continued experimental work on the Lucas type ER6 magneto. | 29th Oct 1926 | West Wittering \ P \ October1926-November1926 Scan081 | |
| Proposal to consider using a Lucas magneto as a second-string option, noting the company's two-year guarantee. | 6th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan082 | |
| Preliminary test report on the 20 HP Lorraine car, evaluating the power unit, carburation, and crankshaft vibration. | 6th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan083 | |
| Page 2 of a report on main shaft period, running temperature, and a comparative acceleration test between 20 HP models and a Lorraine. | 6th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan084 | |
| Performance comparison between the 20 HP RR and the Lorraine car, analysing engine characteristics and anticipating bench test results. | 8th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan085 | |
| Investigation and comparison of an American Bosch ignition coil against the company's own standard coils. | 8th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan086 | |
| The construction and features of an American Bosch Ignition Coil Type TC.30. | 5th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan087 | |
| Test report on the lubrication and wear of an American Mechanics Joint fitted to a 20 HP car's propeller shaft over 14,215 miles. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan088 | |
| Comparison of the American Mechanics Joint with an existing joint, focusing on lubrication needs, simplicity, and cost. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan089 | |
| The general running performance of the 4th Falcon X wet liner engine, detailing water leaks and power loss. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan090 | |
| Engine endurance test, noting power increase, gummed piston rings, and a magneto issue. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan091 | |
| Tests to determine gas leakage past pistons on a Phantom engine. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan092 | |
| Report discussing piston ring leakage test results at different speeds and pressures, and proposing further tests. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan093 | |
| Summary of troubles experienced with Watford Magnetos, detailing failures in wiring, distributors, and mechanical components. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan095 | |
| Issues with locking magneto components due to rushed production and design flaws. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan096 | |
| Experiments on torsional vibrations in 20 HP and Phantom engines. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan097 | |
| Crankshaft vibration, critical speed, and the effects of flywheel friction torque and slipper wheel dampers. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan098 | |
| Crankshaft and flywheel torsional vibration experiments, including findings on the Phantom model. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan099 | |
| Analysis of crankshaft vibration and internal damping, comparing a Phantom engine with a 20 HP engine. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan100 | |
| Engine vibrations and the theoretical effectiveness of different damper types. | 9th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan101 | |
| Continued memorandum discussing resonance effects and estimation methods for six-cylinder crankshafts. | 10th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan102 | |
| Graph comparing torsional vibration amplitudes at critical speed for the Goshawk and Phantom models without external damping. | 10th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan105 | |
| Graph of torsional vibration curves showing amplitude reduction with decreased frictional mounting of the flywheel. | 16th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan106 | |
| American Bosch battery ignition, referencing a photostat copy of a Delco coil for comparison. | 11th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan108 | |
| Inconsistent and unsatisfactory results of white metal bearing tests. | 12th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan109 | |
| Tests on bearings, focusing on the effects of oil temperature and pressure on bearing life and failure load. | 12th Nov 1926 | West Wittering \ P \ October1926-November1926 Scan110 | |
| Ongoing steering problems with the 20 HP model and detailing proposed modifications and comparisons to the Phantom model. | 2nd Nov 1926 | West Wittering \ P \ October1926-November1926 Scan112 | |
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