| Description | Date | Identifier | |
| Carburetion and cold weather performance of the SS model, comparing it to the Phantom. | 24th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan065 | |
| Issues with the reserve petrol supply system and proposed solutions. | 24th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan066 | |
| Petrol reserve arrangements and a recommendation to remove the feature entirely. | 24th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan067 | |
| The condition of stiffer big end bearings after a seven-hour engine test on an F.XLV.MS.27 engine. | 24th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan068 | |
| Laboratory starter rig for observing and investigating gear jamming during engagement. | 26th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan069 | |
| Analysis of the cause of jamming between pinion and wheel teeth due to the design of their corners. | 26th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan070 | |
| Mechanical jamming issue, proposing solutions like a disengaging radius and backed-off teeth. | 26th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan071 | |
| Continued report page on studying a system weakness related to push button pressure and supply voltage. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan072 | |
| Comparative analysis of expanding and static type car carburettors to improve performance. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan073 | |
| List of advantages and disadvantages concerning carburettor operation and performance. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan074 | |
| Analysis of static carburettor performance and disadvantages, including a diagram of mixture at small throttle openings. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan075 | |
| Description of engine stalling due to fuel supply failure during rapid acceleration, comparing car and aero engines. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan076 | |
| Page describing the operation of the Phantom carburetter, focusing on low speed, acceleration, and the function of the automatic air valve, with an accompanying diagram. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan077 | |
| Page detailing carburetter performance, specifically comparing the Phantom carburetter to static carburetters like the Twin Solex. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan078 | |
| Overcoming high depression troubles in a carburetter by employing diffuser type jets. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan079 | |
| Carburetter operation with two illustrative diagrams. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan080 | |
| The design and advantages of a static, suction-controlled carburettor. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan081 | |
| Page discussing the benefits of a diffuser type jet and suction valve in a carburetter for potential future protection. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan082 | |
| Tests conducted on the 'SS' expanding carburetter, detailing induction pipe depression measurements on a Phantom engine. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan083 | |
| Carburettor tests on induction pipe depression related to choke and restrictor area. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan084 | |
| Page discussing modifications to improve air flow in an intake, involving the choke and float chamber. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan085 | |
| Graph plotting induction depressions against the area past the choke for an S.S. carburettor. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan086 | |
| Mostly blank document with a purple 'Print Room' stamp in the bottom right corner. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan087 | |
| Performance and issues with various headlamp schemes. | 28th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan088 | |
| Carburetter freezing issues on 'F' type 'Vee' engines and proposed solutions. | 29th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan089 | |
| Blueprint of a plate type fire proof air intake for R.R. F. Carburettors. | 30th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan090 | |
| Need to repeat a type test for a Moderate Supercharged F. Engine due to bearing failure caused by detonation, and the proposed solution of reducing the compression ratio. | 29th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan091 | |
| Engine endurance and detonation tests, with proposed modifications for future type testing. | 26th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan092 | |
| Comparative power curves for engine F.XIV-MS-27 with compression ratios of 5.3/1, 5.5/1, and 6/1. | 26th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan093 | |
| Page featuring a purple ink stamp from the Print Room. | 30th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan094 | |
| The testing of 'SS' road springs and a new lubrication scheme. | 1st Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan095 | |
| Higher output dynamos, their charging rates, and the potential for premature battery deterioration. | 1st Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan096 | |
| Battery overcharging, dynamo output curves, and the potential use of a green lamp charge indicator. | 1st Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan097 | |
| Experiments with higher output dynamos and green lamp schemes on various car chassis. | 5th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan098 | |
| Anxiety from the Sales department regarding dynamo output and exploring potential improvements. | 5th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan099 | |
| Machine output by adding weight, and the justification for including a green lamp indicator in the chassis electrical system. | 1st Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan100 | |
| General performance report on the Solex double choke carburetter fitted to a 12-EX chassis. | 7th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan101 | |
| Performance comparison report between a standard carburetter and a Solex carburetter, detailing acceleration and hill climb test results. | 7th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan102 | |
| Performance data from hill climb tests comparing R.R. and Solex carburettor configurations. | 7th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan103 | |
| Comparison of petrol consumption between a standard (R.R.) and a Solex carburettor at various speeds. | 5th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan104 | |
| Graph comparing the acceleration of a Phantom (12EX) with Solex and RR carburettors. | 5th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan105 | |
| The reverse of a document showing a company date stamp. | 7th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan106 | |
| Graph comparing the B.M.E.P. of a Phantom engine using a Solex twin carburetter versus the standard carburetter. | 30th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan107 | |
| Blueprint diagram for a Solex Diffuser Tube with dimensions. | 5th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan108 | |
| Sectional diagram of a Solex twin choke carburetter tested on a Standard Phantom. | 5th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan109 | |
| Graph comparing power curves of two Solex carburetter choke sizes against the standard Phantom carburetter. | 20th Jan 1929 | West Wittering \ T \ 2January1929-June1929 Scan110 | |
| Blank page with a date stamp. | 7th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan111 | |
| Successful trial of a Solex carburetter for the Phantom model. | 1st Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan112 | |
| Tests conducted on a twin choke Solex carburetter fitted to a Phantom model, both on the test bed and on the road. | 7th Feb 1939 | West Wittering \ T \ 2January1929-June1929 Scan113 | |
| Test bed runs comparing the performance of Solex carburetors against the standard Phantom carburetor, focusing on B.M.E.P. gains. | 7th Feb 1939 | West Wittering \ T \ 2January1929-June1929 Scan114 | |
| Carburettor choke sizes and their effect on low-speed performance and driveability. | 7th Feb 1939 | West Wittering \ T \ 2January1929-June1929 Scan115 | |
| Page discussing engine induction systems, carburettor configurations, and fuel distribution improvements across various engine models. | 7th Feb 1939 | West Wittering \ T \ 2January1929-June1929 Scan116 | |
| Carburettor development, comparing single versus double carburettors, and suggesting tests for improved low speed torque. | 7th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan117 | |
| Recommending the standardisation of Morganite Grade EG2 brushes for Phantom and S.S. Dynamos following a 10,000-mile test. | 7th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan118 | |
| Test report on the 10,000-mile performance of Morganite EG2 brushes on a dynamo. | 1st Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan119 | |
| Trials on a pinion for a sequence starter, observing jamming faults and comparing it to a Bosch design. | 7th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan120 | |
| Development of slackness in the R.R. pinion and its splines, comparing it with a Bosch design. | 7th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan121 | |
| Blueprint of an induction system for a Phantom, used for Solex carburetter experiments. | 7th Feb 1928 | West Wittering \ T \ 2January1929-June1929 Scan122 | |
| Comparison blueprint of different types of trunnion bearings. | 8th Feb 1928 | West Wittering \ T \ 2January1929-June1929 Scan123 | |
| Investigation into radiator movement issues on the 'SS' model. | 8th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan124 | |
| Tests on radiator movement and engine roughness under various body, subframe, and engine mounting conditions. | 8th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan125 | |
| Page 3 of a report detailing modifications and test results for body mounting and frame damping. | 8th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan126 | |
| Test report in table format detailing the results of 'SS' radiator movement under different engine and body mounting conditions. | 1st Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan127 | |
| Secret test report on Hypoid gears and propeller shaft joints for the 'SS' chassis. | 1st Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan128 | |
| The investigation of faults with joints and the testing of the gearbox and vacuum pump. | 1st Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan129 | |
| Power curves comparing the SS and Phantom models, and an update on a new rear wheel carrier. | 7th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan130 | |
| Graph plotting Horse Power at the Road Wheels against Engine RPM for the Standard Phantom and S.S. Chassis models. | 7th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan131 | |
| Blank document page with a purple date stamp. | 8th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan132 | |
| Test results for the 'SS' model's cold start performance compared to the Phantom, resulting in a modification to the engine heating system. | 1st Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan133 | |
| Laboratory trials for an S.S. Sequence Starter, detailing tests on pinion engagement and jamming issues. | 15th Mar 1929 | West Wittering \ T \ 2January1929-June1929 Scan134 | |
| Experiments to fix motor engagement issues by testing additional torque, current, and different spring arrangements. | 15th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan135 | |
| Improvements and proposed modifications to a pinion mechanism, including test results and suggestions for new motors. | 15th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan136 | |
| Brief internal memorandum requesting remarks before escalating a matter to the D.O. | 15th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan137 | |
| Cover letter for the final report on the 18-EX car after a 10,000-mile test in France. | 19th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan138 | |
| 18-EX car after a 10,000 miles test in France, detailing engine performance and component conditions. | 19th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan139 | |
| Condition and issues of various engine components following a 5000-mile test. | 19th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan140 | |
| Continued test report page detailing the condition of a radiator, shutters, bonnet, oil pump, fan, axle, brakes, and springs. | 19th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan141 | |
| Test report page detailing the performance and condition of various vehicle components including axles, steering, clutch, and brakes. | 19th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan142 | |
| The post-test condition of various vehicle components, including brakes, dampers, petrol tank, and subframe. | 19th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan143 | |
| Test report summary on the performance of the bodywork, windows, and semi-isolation scheme. | 19th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan144 | |
| Investigating bearing failures on 'F' engines, attributing the cause to faulty oil supply installation. | 19th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan145 | |
| F. engine installation issues, comparing service machines to an experimental machine. | 19th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan146 | |
| Experiments with 'SS' engine feet fitted to a 20-EX experimental car. | 19th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan147 | |
| Trials on the 'SS' Sequence Starter, concerning the effect of voltage on corner jamming failures. | 19th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan148 | |
| Standardisation of wheel rim sizes for 'SS' cars, comparing 20' and 21' options. | 20th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan149 | |
| Proposed improvements and ongoing tests for the 21-EX car, focusing on engine feet, frame twisting, and exhaust noise. | 27th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan150 | |
| Engine and exhaust noise issues and arrangements for the 21-EX car. | 20th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan151 | |
| Listing parts to be fitted to the 21-EX Car chassis before testing. | 20th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan152 | |
| Numbered list of vehicle modifications and features, continued from a previous page. | 28th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan153 | |
| The results of comparative life tests on switchbox and cut-out contacts. | 28th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan154 | |
| Life tests conducted on a 20 HP switchbox. | 23th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan155 | |
| Test report detailing the failure analysis of electrical cut-out points under different breaking conditions. | 23th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan156 | |
| Continuation page of a report detailing tests on switch contacts. | 1st Mar 1929 | West Wittering \ T \ 2January1929-June1929 Scan157 | |
| Laboratory test report on a sequence starter motor and its associated switches and components. | 1st Mar 1929 | West Wittering \ T \ 2January1929-June1929 Scan158 | |
| Electrical and operational tests on a starter motor, its armature, and teazer circuit. | 1st Mar 1929 | West Wittering \ T \ 2January1929-June1929 Scan159 | |
| Grinding down a parallel armature for a trial with a LeC. damper. | 6th Mar 1929 | West Wittering \ T \ 2January1929-June1929 Scan160 | |
| The development and faults of a sequence starter motor and its switches. | 6th Mar 1929 | West Wittering \ T \ 2January1929-June1929 Scan161 | |
| Analysis of noise issues related to gear engagement, disengagement, and damper performance. | 6th Mar 1929 | West Wittering \ T \ 2January1929-June1929 Scan162 | |
| Modifications to a motor arrangement to address gear noise and pinion engagement. | 22th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan163 | |
| Modifications and tests on electrical motor components and switches. | 22th Feb 1929 | West Wittering \ T \ 2January1929-June1929 Scan164 | |
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