| Description | Date | Identifier | |
| List of five steering tests for various models and components. | 21th Sep 1936 | Box 106 \ 3 scan0408 | |
| Steering 'joggles' on the 25/30 HP chassis during continental trials. | 21th Sep 1936 | Box 106 \ 3 scan0409 | |
| Test report on the steering performance of Chassis No GUL-4 during Continental Trials. | 14th Sep 1936 | Box 106 \ 3 scan0410 | |
| Requesting a 25/30 HP steering gear from production to demonstrate the correct setting procedure. | 23th Sep 1936 | Box 106 \ 3 scan0411 | |
| Requesting the fitting of a 25/30 steering roller to a rig steering box. | 29th Sep 1936 | Box 106 \ 3 scan0412 | |
| 25/30 HP Steering Cam drawing from Adamant Co. | 2nd Oct 1936 | Box 106 \ 3 scan0413 | |
| Instructions for fitting a modified Marles type steering system to a chassis with three specific features. | 3rd Oct 1936 | Box 106 \ 3 scan0414 | |
| Faulty steering column for car GTL-80 and the temporary solution of using a part from car GRM-25. | 8th Oct 1936 | Box 106 \ 3 scan0415 | |
| Confirming arrangements for the manufacture of 100 sets of roller followers for the 25/30 HP steering system. | 15th Oct 1936 | Box 106 \ 3 scan0416 | |
| Transferring the production of the follower roller for the 25/30 HP chassis Marles steering gear to Messrs. Ransome & Marles. | 15th Oct 1936 | Box 106 \ 3 scan0417 | |
| Modifications and hardness test results for 25/30 HP steering rollers. | 22th Oct 1936 | Box 106 \ 3 scan0418 | |
| Tempering temperatures and hardness figures for steering components. | 22th Oct 1936 | Box 106 \ 3 scan0419 | |
| Replacement of parts for a 21-G-IV steering system. | 28th Oct 1936 | Box 106 \ 3 scan0420 | |
| Change in allowance for lapping on 25/30 HP steering rollers. | 9th Nov 1936 | Box 106 \ 3 scan0421 | |
| Clarifying a discrepancy regarding the lapping allowance for 25/30 HP steering rollers. | 12th Nov 1936 | Box 106 \ 3 scan0422 | |
| Customer feedback on Bentley steering and internal discussion on a short pendulum lever. | 11th Nov 1936 | Box 106 \ 3 scan0423 | |
| The construction of a steering column to bump test new 25.HP steering rollers. | 18th Nov 1936 | Box 106 \ 3 scan0424 | |
| Standard for Phantom III and 25/30 HP steering gears. | 23th Nov 1936 | Box 106 \ 3 scan0425 | |
| Estimating the cost savings of using keyed servo linings on the 25/30HP chassis. | 10th Nov 1936 | Box 106 \ 3 scan0426 | |
| Issues with hard spots on Marles steering cams for the Phantom III & 25/30 HP models and discussions with the Adamant Company. | 2nd Dec 1936 | Box 106 \ 3 scan0427 | |
| Methods to eliminate hard spots in a cam and roller assembly for a steering mechanism. | 13th Feb 1936 | Box 106 \ 3 scan0428 | |
| Resolving interference issues in cam and roller bearing mechanisms by producing an eccentric cam axis. | 2nd Dec 1936 | Box 106 \ 3 scan0429 | |
| The unsatisfactory performance of a trial 25/30HP Marles steering cam system, citing slackness and tight spots. | 2nd Dec 1936 | Box 106 \ 3 scan0430 | |
| Requesting modifications to a rig steering box, including fitting new bearings and a hardened rockershaft. | 11th Jan 1937 | Box 106 \ 3 scan0431 | |
| Cancelling a new rockershaft for the Ph.III and 25/30 Rig Steering Gear. | 15th Jan 1937 | Box 106 \ 3 scan0432 | |
| Fitting of specific steering columns to four chassis (GRO.9, 10, 16, 22) for testing. | 4th Feb 1937 | Box 106 \ 3 scan0433 | |
| Noting a chassis has been fitted with a 25/30 HP Steering Column using Ransome and Marles components. | 5th Feb 1937 | Box 106 \ 3 scan0434 | |
| Fitting of a Ransome and Marles steering column to a specific 25/30 HP chassis. | 8th Feb 1937 | Box 106 \ 3 scan0435 | |
| The testing of 25/30HP chassis steerings with Ransome & Marles components. | 8th Feb 1937 | Box 106 \ 3 scan0436 | |
| Note confirming satisfactory steering tests for chassis number GRO-70. | 11th Mar 1937 | Box 106 \ 3 scan0437 | |
| Confirmation memo detailing modifications for the 25.G.V1. steering assembly. | 23th Mar 1937 | Box 106 \ 3 scan0438 | |
| Supply of Marles steering roller followers and negotiations with Hoffmann Manufacturing Co. | 6th Apr 1937 | Box 106 \ 3 scan0439 | |
| Request to prepare new drawings for a 25/30.HP roller assembly and its components. | 6th Apr 1937 | Box 106 \ 3 scan0440 | |
| Proposed simplification for the production of the steering column cam tube. | 5th Apr 1937 | Box 106 \ 3 scan0441 | |
| Cost-saving suggestion for a built-up cam tube for steering columns. | 12th Apr 1937 | Box 106 \ 3 scan0442 | |
| Part changes for a steering column bolt on a 25/30 HP chassis. | 14th Apr 1937 | Box 106 \ 3 scan0443 | |
| Quotation and order for Marles Steering Rollers from The Hoffmann Manufacturing Co. | 15th Apr 1937 | Box 106 \ 3 scan0444 | |
| Cost-saving modification for the steering column cam tube. | 15th Apr 1937 | Box 106 \ 3 scan0445 | |
| Cover note regarding a discussion on the advisability of changing the steering on the 25/30 model. | 28th May 1937 | Box 106 \ 3 scan0446 | |
| Suggestion to discontinue a steering modification for the 25/30 HP model due to reported failures. | 22th May 1937 | Box 106 \ 3 scan0447 | |
| Roller follower failures, its load capacity, and the recommendation to continue with a modification. | 30th Apr 1937 | Box 106 \ 3 scan0448 | |
| Standardisation of a bolt for supporting the roller follower in the steering gear rockershaft. | 30th Apr 1937 | Box 106 \ 3 scan0449 | |
| Cost estimate for new tools required for the 'R2' series chassis production. | 23th Jun 1937 | Box 106 \ 3 scan0450 | |
| 25/30 HP Steering Cams, attaching communication from The Adamant Company. | 23th Jun 1937 | Box 106 \ 3 scan0451 | |
| Letter from Adamant Engineering Company regarding the supply, rejection, and rectification of Cams. | 22th Jun 1937 | Box 106 \ 3 scan0452 | |
| The rejection of 25/30 HP steering cams and correspondence with Adamant Engineering Co. | 5th Jul 1937 | Box 106 \ 3 scan0453 | |
| The inspection of 15 - 25/30 Roller Assemblies from Messrs. Hoffmann. | 5th Aug 1937 | Box 106 \ 3 scan0454 | |
| Announcing the start of a standardisation sheet for malleable iron steering boxes for the 25/30.HP model. | 19th Aug 1937 | Box 106 \ 3 scan0455 | |
| Completion of tests on 25/30 HP steering rollers. | 7th Oct 1937 | Box 106 \ 3 scan0456 | |
| Standardisation of parts document for changing the steering box material from bronze to malleable iron. | 20th Aug 1937 | Box 106 \ 3 scan0457 | |
| Cost analysis for the introduction of a Hallocasts Iron 25/30 HP steering box. | 10th Mar 1938 | Box 106 \ 3 scan0458 | |
| Bulletin about steering roller follower bearing failures on Phantom III and 25/30.HP models. | 10th Mar 1938 | Box 106 \ 3 scan0459 | |
| Three possible types of wheels (Michelin, Dunlop, Pressed Steel) for the Goshawk 11 model. | 1st Jul 1921 | Box 106 \ 4 scan0001 | |
| Wobbling Michelin disc wheels on the Goshawk 11 car. | 10th Oct 1921 | Box 106 \ 4 scan0002 | |
| Recommendation to offer wire wheels as an alternative to Michelin disc wheels due to performance issues. | 26th Oct 1921 | Box 106 \ 4 scan0003 | |
| Findings from extensive road tests of Michelin disc wheels, including objections and confirmations. | 15th Nov 1921 | Box 106 \ 4 scan0004 | |
| Performance of fitted wheels on Armoured cars and the need for wire wheel designs for the Goshawk model. | 15th Nov 1921 | Box 106 \ 4 scan0005 | |
| Requesting pricing for Dunlop and Rudge Whitworth wire wheels and noting a hub design issue. | 9th Dec 1921 | Box 106 \ 4 scan0006 | |
| The position of the pedal shaft for B and D steering on the Goshawk 11 model. | 19th Dec 1921 | Box 106 \ 4 scan0007 | |
| Spare wheel arrangement and wheel supplier choice for the 'Swallow' model. | 19th Dec 1921 | Box 106 \ 4 scan0008 | |
| Internal order for two sets of 5 Dunlop disc wheels for Goshawk 11. | 25th Jan 1922 | Box 106 \ 4 scan0009 | |
| Wheel options and suggested extras for the Goshawk model. | 14th Feb 1922 | Box 106 \ 4 scan0010 | |
| Weights and production progress for Rudge Whitworth and Dunlop wheels and rims. | 21th Feb 1922 | Box 106 \ 4 scan0011 | |
| Continuation of a document listing the weights of various tyres and rims. | 22th Feb 1922 | Box 106 \ 4 scan0012 | |
| 'Goshawk' wheels and tyres, detailing weight comparisons and negotiations with Rudge-Whitworth. | 22th Feb 1922 | Box 106 \ 4 scan0013 | |
| Request to supply Rudge Whitworth wire wheels for experimental Goshawk cars. | 1st Feb 1922 | Box 106 \ 4 scan0014 | |
| Comparison document outlining the weight differences between straight-sided and beaded edge wheels for the Goshawk model. | 2nd Feb 1922 | Box 106 \ 4 scan0015 | |
| Decision to use wire wheels over disc wheels on the Goshawk. | 3rd Mar 1922 | Box 106 \ 4 scan0016 | |
| Dunlop versus R.W. wire wheels for the Goshawk 11, noting the cost difference. | 30th Mar 1922 | Box 106 \ 4 scan0017 | |
| Scheme for a wheel carrier on the running boards for the Goshawk 11 model. | 8th Apr 1922 | Box 106 \ 4 scan0018 | |
| Arranging for the examination of car wheels in Paris. | 26th May 1922 | Box 106 \ 4 scan0019 | |
| Forwarding a communication from the Rudge-Whitworth Company regarding wheel creaks. | 26th May 1922 | Box 106 \ 4 scan0020 | |
| Letter from John V. Pugh of Rudge Whitworth regarding a wheel creak issue on an Austro-Daimler car. | 24th May 1922 | Box 106 \ 4 scan0021 | |
| Choice between Rudge-Whitworth and Dunlop wire wheels for the Goshawk project. | 30th May 1922 | Box 106 \ 4 scan0022 | |
| On the problem of creaking Goshawk Rudge-Whitworth wheels and their comparison to Dunlop wheels. | 1st Jan 1922 | Box 106 \ 4 scan0023 | |
| Comparing Rudge-Whitworth and Dunlop wire wheels, noting issues with the former and a preference for the latter. | 1st Jun 1922 | Box 106 \ 4 scan0024 | |
| Enclosing extracts concerning Goshawk wheels and a letter from Rudge-Whitworth Ltd. | 3rd Jun 1922 | Box 106 \ 4 scan0025 | |
| Important decision on Goshawk wheels, with a financial implication of £9,000-£10,000 per annum. | 2nd Jun 1922 | Box 106 \ 4 scan0026 | |
| Internal memorandum discussing the creaking issues and pricing of Rudge-Whitworth wheels for the 'Goshawk' chassis. | 31th May 1922 | Box 106 \ 4 scan0027 | |
| Continued memo regarding the financial decision on the Goshawk wheel question, referencing a Rudge-Whitworth letter. | 31th May 1922 | Box 106 \ 4 scan0028 | |
| Creaking issues with Rudge-Whitworth wheels on a Goshawk model compared to Dunlop wheels. | 31th May 1922 | Box 106 \ 4 scan0029 | |
| Letter from Rudge-Whitworth Ltd. concerning the diagnosis and resolution of a wheel creak. | 24th May 1922 | Box 106 \ 4 scan0030 | |
| Choice between Dunlop and Rudge-Whitworth wheels for the Goshawk project. | 7th Jun 1922 | Box 106 \ 4 scan0031 | |
| Communication from Rudge-Whitworth about creaking wheels on the 'Goshawk' car. | 13th Jun 1922 | Box 106 \ 4 scan0032 | |
| Letter from Rudge-Whitworth Ltd. detailing an inspection of an experimental car's wheels and nuts, and suggesting improvements. | 8th Jun 1922 | Box 106 \ 4 scan0033 | |
| Trouble with Rudge-Whitworth wheels on 'Goshawk' cars and comparing them to Dunlop wheels. | 13th Jun 1922 | Box 106 \ 4 scan0034 | |
| Communication regarding creaking Rudge-Whitworth wheels on a 'Goshawk' car. | 15th Jun 1922 | Box 106 \ 4 scan0035 | |
| Letter from Rudge Whitworth Ltd. clarifying that certain wheels were found to be slack because they had never been properly tightened. | 12th Jun 1922 | Box 106 \ 4 scan0036 | |
| 7-Goshawk-11 car in France detailing issues with creaking wheels, oil on brakes, and loose steering bolts. | 30th Jun 1922 | Box 106 \ 4 scan0037 | |
| Choice between R.W. (Rudge-Whitworth) and Dunlop wire wheels for the Goshawk and 40/50 models. | 1st Jul 1922 | Box 106 \ 4 scan0038 | |
| Works order to supply one complete Rudge Whitworth wheel for a Goshawk chassis. | 27th Jul 1922 | Box 106 \ 4 scan0039 | |
| Arranging the despatch of a complete R.W. wheel to Major Hodges in Boulogne. | 27th Jul 1922 | Box 106 \ 4 scan0040 | |
| Telegram from Paris requesting Rudge-Whitworth wheels be sent to a garage in Boulogne. | 29th Jul 1922 | Box 106 \ 4 scan0041 | |
| The importance of jacking up a wheel before tightening to prevent wear on Rudge-Whitworth and Dunlop wheel serrations. | 1st Apr 1922 | Box 106 \ 4 scan0042 | |
| The Amateur Driven Goshawk, recommending its return due to obsolete parts and inquiring about a wheel failure. | 3rd Aug 1922 | Box 106 \ 4 scan0043 | |
| Request for data on tests conducted with Rudge-Whitworth wire wheels on the Goshawk. | 18th Aug 1922 | Box 106 \ 4 scan0044 | |
| Requesting checks and details on water pipe, oil pipe, and wheel failures on an amateur-driven Goshawk. | 22th Aug 1922 | Box 106 \ 4 scan0045 | |
| Letter to Dunlop Rubber Co. concerning failures of demountable wheel rims and a proposed simple locking device. | 29th Aug 1922 | Box 106 \ 4 scan0046 | |
| Letter to Dunlop Rubber Co. regarding issues with demountable flanges coming off straight-sided rims when tyres deflate. | 13th Sep 1922 | Box 106 \ 4 scan0047 | |
| Letter discussing modifications to Dunlop wheels and straight-sided rims to prevent parts detaching when a tyre deflates. | 18th Sep 1922 | Box 106 \ 4 scan0048 | |
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