| Description | Date | Identifier | |
| Data sheet comparing propeller shaft specifications and performance for Cadillac, Studebaker, and Vauxhall vehicles. | 8th Jun 1940 | Box 148 \ 4 scan0150 | |
| Shaft dimensions, speeds, end play reduction in trunnions, and testing suggestions. | 8th Jun 1940 | Box 148 \ 4 scan0151 | |
| Schemes for a revised propeller shaft centre bearing for the Senior Range cars. | 13th Jul 1940 | Box 148 \ 4 scan0152 | |
| Issues with propellor shaft vibrations on specific car models and suggesting potential solutions. | 9th Sep 1940 | Box 148 \ 4 scan0153 | |
| Propeller shaft vibration problems on Senior Range cars with different wheelbases. | 13th Sep 1940 | Box 148 \ 4 scan0154 | |
| Report page investigating vehicle vibration, propeller shafts, and suspension issues. | 13th Sep 1940 | Box 148 \ 4 scan0155 | |
| Analysis of propeller shaft vibrations, comparing different bearing support types and investigating frequency matching. | 13th Sep 1940 | Box 148 \ 4 scan0156 | |
| Precession angles and potential solutions for short wheelbase cars in the Senior Range. | 13th Sep 1940 | Box 148 \ 4 scan0157 | |
| Parts list for a simplified propeller shaft centre bearing mounting. | 2nd Oct 1940 | Box 148 \ 4 scan0158 | |
| Parts list for a temporary propeller shaft mounting scheme and associated memo. | 2nd Oct 1940 | Box 148 \ 4 scan0159 | |
| Reference note to another file regarding matters of the 'SENIOR RANGE'. | 1st Sep 1940 | Box 148 \ 4 scan0160 | |
| Deficiencies of U-bolt fitted joints for propeller shafts as expressed by Hardy Spicer. | 1st Sep 1940 | Box 148 \ 4 scan0161 | |
| Proposal for a shaft with a sliding joint in the gearbox, reference PL.344. | 18th Sep 1940 | Box 148 \ 4 scan0162 | |
| Letter from Hardy Spicer & Co. Limited confirming their apparatus is ready to test propeller shafts and asking for an approximate delivery date. | 23th Sep 1940 | Box 148 \ 4 scan0163 | |
| Deficiencies of U-bolt fitted joints for propeller shafts, with remarks from Hardy Spicer. | 9th Sep 1940 | Box 148 \ 4 scan0164 | |
| Letter to Mr. Daniell of Hardy Spicers Ltd. arranging a meeting to discuss propeller shafts. | 10th Nov 1940 | Box 148 \ 4 scan0165 | |
| Letter concerning the return of propeller shafts and the issues they developed during service. | 14th Nov 1940 | Box 148 \ 4 scan0166 | |
| Letter from Hardy Spicer & Co. regarding the testing and analysis of propeller shafts. | 29th Nov 1940 | Box 148 \ 4 scan0167 | |
| Letter from Hardy Spicer & Co. Limited regarding holding shafts pending further instructions. | 26th Nov 1940 | Box 148 \ 4 scan0168 | |
| Dimensional chart for a universal joint assembly and its components. | 26th Nov 1940 | Box 148 \ 4 scan0169 | |
| Letter to Messrs Hardy Spicer Ltd. concerning a problem with propeller shafts and requesting their return. | 5th Dec 1940 | Box 148 \ 4 scan0170 | |
| Programme proposal for the approval of modifications and durability testing on an Austin 8 vehicle. | 9th Aug 1941 | Box 148 \ 4 scan0171 | |
| Driver complaints, the need for chassis modifications, and the postponement of further work. | 9th Aug 1941 | Box 148 \ 4 scan0172 | |
| Letter from Hardy Spicer & Co. Limited regarding varying torques and specifications for print RG2729. | 28th Aug 1941 | Box 148 \ 4 scan0173 | |
| Letter to Hardy Spicer & Co. Ltd. agreeing to a modification for two propeller shafts. | 1st Sep 1941 | Box 148 \ 4 scan0174 | |
| The theory of loads and torques in a chassis propeller shaft. | 4th Jan 1944 | Box 148 \ 4 scan0175 | |
| Analysis of shaft loads, rocking couples, and vibration related to the drivetrain. | 4th Jan 1944 | Box 148 \ 4 scan0176 | |
| Explaining the rocking couple in propeller shaft joints with diagrams and formulas. | 4th Jan 1944 | Box 148 \ 4 scan0177 | |
| Analysis of forces, torques, and couples on propeller shaft joints and driving forks. | 4th Jan 1944 | Box 148 \ 4 scan0178 | |
| Cover memo for the elementary theory of loads and torques in chassis propeller shafts from the Borg Warner Corp. | 4th Jan 1944 | Box 148 \ 4 scan0179 | |
| Analysis of shaft rocking couples, bearing loads, and propeller shaft vibration in Senior Range Cars. | 4th Jan 1944 | Box 148 \ 4 scan0180 | |
| Diagram and calculations for the rocking couple in propeller shaft joints. | 4th Jan 1944 | Box 148 \ 4 scan0181 | |
| Study of forces and torques in propeller shaft joints and driving forks at different angles. | 8th Jan 1944 | Box 148 \ 4 scan0182 | |
| Universal Joints from Borg-Warner, including their potential use on the Cromwell and Bentley. | 8th Jan 1944 | Box 148 \ 4 scan0183 | |
| Outlining the proposed new system for budgeting Experimental Expenditure. | 5th Jul 1937 | Box 148 \ 4 scan0184 | |
| Proposal to introduce a new system for costing experimental development work. | 5th Jul 1937 | Box 148 \ 4 scan0185 | |
| Procedural document detailing the approval process and budgeting for major projects. | 24th Sep 1937 | Box 148 \ 4 scan0186 | |
| Experimental chassis project for combustion control by piston modification. | 24th Sep 1937 | Box 148 \ 4 scan0187 | |
| Experimental project to fit Bentley 50 Type non-servo brakes to a Bentley II chassis, using Lockheed front and Girling rear components. | 13th Nov 1937 | Box 148 \ 4 scan0188 | |
| Experimental project proposal for a Bentley chassis bearing test rig. | 24th Nov 1937 | Box 148 \ 4 scan0189 | |
| Experimental project to reduce the material cost of crankshaft forgings by using .4 carbon steel. | 24th Nov 1937 | Box 148 \ 4 scan0190 | |
| Experimental project to test three crankshaft forgings in .4 carbon steel for a 25/30 Bentley chassis. | 24th Nov 1937 | Box 148 \ 4 scan0191 | |
| Experimental project to make and test three crankshaft forgings from .4 carbon steel for a Bentley chassis. | 24th Nov 1939 | Box 148 \ 4 scan0192 | |
| Experimental project for a four shoe brake on a Wraith front axle. | 20th Feb 1938 | Box 148 \ 4 scan0193 | |
| Experimental project to test two crankshaft forgings and a Packard-type balance weight shaft made from .4 carbon steel to reduce cost. | 24th Nov 1937 | Box 148 \ 4 scan0194 | |
| List of proposed designs that have not been started for various car models. | 9th Feb 1938 | Box 148 \ 4 scan0195 | |
| Clarifying the authorisation process for manufacturing Test Tackle for Experimental Projects. | 26th Feb 1938 | Box 148 \ 4 scan0196 | |
| Experimental parts fitted to chassis 4.EX. | 12th Dec 1920 | Box 148 \ 4 scan0197 | |
| Arranging a meeting to discuss minimising the cost of red number plates. | 5th Jan 1921 | Box 148 \ 4 scan0198 | |
| The design and production method for a chassis patent number plate. | 27th Jan 1921 | Box 148 \ 4 scan0199 | |
| Design and manufacturing process for chassis patent number plates. | 8th Mar 1921 | Box 148 \ 4 scan0200 | |
| The delayed fitting of a telegauge and the legal compliance of a number plate and tail lamp bracket. | 2nd Feb 1922 | Box 148 \ 4 scan0201 | |
| The optimal placement of the oval nameplate, suggesting a move from the instrument board to the engine side of the dash. | 29th Apr 1922 | Box 148 \ 4 scan0202 | |
| Design and materials for the Goshawk 11 rear number plate and tail lamp. | 19th May 1922 | Box 148 \ 4 scan0203 | |
| Query regarding instructions for special number plates on Goshawk cars. | 6th Nov 1922 | Box 148 \ 4 scan0204 | |
| Report of a lost limited trade number plate from a 20 HP car. | 17th Aug 1923 | Box 148 \ 4 scan0205 | |
| Request for a further set of General Trade Licence Plates for production chassis testing. | 7th Sep 1923 | Box 148 \ 4 scan0206 | |
| Process of exchanging old limited trade number plates for new ones and the associated logistics. | 12th Feb 1924 | Box 148 \ 4 scan0207 | |
| Arranging for the despatch of number plates to an R.A.C. Agent in Southampton. | 5th Jul 1924 | Box 148 \ 4 scan0208 | |
| Despatch order for a set of chassis number plates to be sent to The Royal Automobile Club Representative in Southampton. | 5th Jul 1924 | Box 148 \ 4 scan0209 | |
| Secret memo regarding the correct positioning of a front number plate. | 23th Oct 1924 | Box 148 \ 4 scan0210 | |
| Instructing Stores to despatch a set of General Trade Number Plates to Barkers (Coachbuilders). | 26th May 1925 | Box 148 \ 4 scan0211 | |
| Works order for the despatch of a set of General Trade Number Plates. | 26th May 1925 | Box 148 \ 4 scan0212 | |
| Concerning the fixing of back number plates on Phantom chassis. | 8th Dec 1925 | Box 148 \ 4 scan0213 | |
| The method of attaching back number plates on the Phantom model. | 19th Dec 1925 | Box 148 \ 4 scan0214 | |
| Urgent request to order a transparent celluloid rear number plate for a 10-EX car from Barkers coachbuilders. | 17th Aug 1927 | Box 148 \ 4 scan0215 | |
| Letter from a coachbuilder regarding an order for a transparent celluloid rear number plate. | 19th Aug 1927 | Box 148 \ 4 scan0216 | |
| Letter to coachbuilders Messrs. Barkers regarding the correct dimensions for a rear number plate. | 24th Aug 1927 | Box 148 \ 4 scan0217 | |
| Letter from coachbuilders Barker & Co. regarding order 69172 and the creation of a custom celluloid number plate. | 26th Aug 1927 | Box 148 \ 4 scan0218 | |
| Letter to Parkers coachbuilders returning an unsuitable rear number plate and requesting a replacement with specific material instructions. | 7th Sep 1927 | Box 148 \ 4 scan0219 | |
| The despatch of an unsuitable number plate for the 10-EX car to a coachbuilder. | 7th Sep 1927 | Box 148 \ 4 scan0220 | |
| Letter from coachbuilders Barker & Co confirming the dispatch of a celluloid number plate for Trials Car 10 EX. | 14th Sep 1927 | Box 148 \ 4 scan0221 | |
| Design for a rear number plate and tail lamp, and a request for lamp holders for distribution. | 4th Nov 1927 | Box 148 \ 4 scan0222 | |
| Sending three lamp holders with shields for a rear number plate. | 10th Nov 1927 | Box 148 \ 4 scan0223 | |
| Requesting a GB plate from the R.A.C. for the 12-EX car for travel to France. | 11th Apr 1928 | Box 148 \ 4 scan0224 | |
| Mounting front wing stays, headlamps, and the front number plate for model 18-EX. | 6th Nov 1928 | Box 148 \ 4 scan0225 | |
| Note regarding vibration issues with a central third lamp and potential modifications to the bracket and number plate positioning. | 26th Feb 1929 | Box 148 \ 4 scan0226 | |
| Proposed method of carrying the tail lamp with a hinged number plate. | 26th Feb 1929 | Box 148 \ 4 scan0227 | |
| Tests on front number plate visibility at various positions and distances, concluding with a legal compliance issue. | 15th Oct 1929 | Box 148 \ 4 scan0228 | |
| Extract from the Road Vehicles (Registration & Licensing) Regulations of 1924. | 1st Jan 1924 | Box 148 \ 4 scan0229 | |
| The second page of a memorandum discussing non-compliance with regulations. | 29th Jun 1932 | Box 148 \ 4 scan0230 | |
| Official instructions for rear number plate placement on the Phantom and other models. | 29th Jun 1932 | Box 148 \ 4 scan0231 | |
| Instructing the fitting of new clutch springs, reducing clearance, and moving the number plate. | 12th Aug 1932 | Box 148 \ 4 scan0232 | |
| Requesting the despatch of one set of trade number plates to Mr. Evans at Lillie Hall. | 1st Dec 1934 | Box 148 \ 4 scan0233 | |
| Request to cast two number plates with specific details. | 10th Jul 1935 | Box 148 \ 4 scan0234 | |
| Request to have a rear number plate cast for Spectre 2. | 6th Sep 1935 | Box 148 \ 4 scan0235 | |
| Request to despatch a set of trade plates to Lillie Hall, Fulham. | 19th Nov 1935 | Box 148 \ 4 scan0236 | |
| Request to cast one front number plate for chassis 36-EX, to specification RC-3695. | 20th Mar 1936 | Box 148 \ 4 scan0237 | |
| Request to Cornercroft Ltd. for a rear interior number plate for a Park Ward Phantom III Sedanca de Ville body. | 19th Jun 1936 | Box 148 \ 4 scan0238 | |
| Official order for one Rear Interior Number Plate from Messrs. Cornercroft. | 19th Jun 1936 | Box 148 \ 4 scan0239 | |
| Request to cast one front number plate for chassis 37-EX. | 20th Jun 1936 | Box 148 \ 4 scan0240 | |
| Internal request to send an official order to Messrs. Cornercroft Ltd. for one interior number plate. | 9th Apr 1937 | Box 148 \ 4 scan0241 | |
| Request to despatch a set of trade number plates to Mr. H.S. Gerrish of Rawlence Cars Ltd. | 29th May 1937 | Box 148 \ 4 scan0242 | |
| Letter from the Experimental Dept. to Cornercroft Co. Ltd. requesting an interior number plate for a new body. | 24th Jun 1937 | Box 148 \ 4 scan0243 | |
| Request to have one front number plate cast for chassis RC.5328. | 25th Jun 1937 | Box 148 \ 4 scan0244 | |
| Request to place an official order with Messrs. Cornercroft for one interior number plate. | 24th Jun 1937 | Box 148 \ 4 scan0245 | |
| Requesting a covering order for one interior number plate from Cornercroft Ltd. | 3rd Aug 1937 | Box 148 \ 4 scan0246 | |
| Request to cast a number plate to specification RC.5447 for use on Wraith 27-G-VI. | 3rd Aug 1937 | Box 148 \ 4 scan0247 | |
| Request to Cornercroft Ltd. for an interior rear number plate for a new body. | 3rd Aug 1937 | Box 148 \ 4 scan0248 | |
| Request to have a front number plate cast for a car. | 14th Oct 1937 | Box 148 \ 4 scan0249 | |
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