| Description | Date | Identifier | |
| Confirming a conversation about using temporary balance weights under tyre bolts to fix steering wobble. | 24th Jun 1912 | Box 28 \ 4 Scan019 | |
| Article from 'The Autocar' magazine about diagnosing and curing steering wheel flapping. | 7th Sep 1912 | Box 28 \ 4 Scan020 | |
| Extract from 'The Autocar' magazine discussing the cause and cure for flapping steering wheels. | 9th Nov 1912 | Box 28 \ 4 Scan021 | |
| Curing steering 'flapping' by adjusting axle inclination, noting that the best solution requires experimentation. | 4th Dec 1912 | Box 28 \ 4 Scan022 | |
| Letter from F.H. Royce discussing steering wobble, referred to as 'flapping', and proposed improvements. | 4th Dec 1912 | Box 28 \ 4 Scan023 | |
| Issues with out-of-balance wheels and tyres and the advantages of adopting Dunlop wire wheels. | 24th Jan 1933 | Box 28 \ 4 Scan024 | |
| Departmental memo discussing the investigation into steering wobble issues. | 13th May 1913 | Box 28 \ 4 Scan025 | |
| Investigation into steering wobbles, proposing tests and potential causes. | 16th May 1913 | Box 28 \ 4 Scan026 | |
| From Mr. Johnson requesting tests to investigate steering wobble in badly balanced cars. | 20th May 1913 | Box 28 \ 4 Scan027 | |
| Report discussing explosions in the silencer and an investigation into steering wobbles, with comparative data from a Daimler. | 20th May 1913 | Box 28 \ 4 Scan028 | |
| Testing wheel oscillation and wobble by fitting bumps to tyres, with notes on a Delaunay-Belleville car. | 20th May 1913 | Box 28 \ 4 Scan029 | |
| Comparative analysis of vehicle wobble, steering, and wheel specifications for Napier and R.R. No.2100E models. | 28th May 1913 | Box 28 \ 4 Scan030 | |
| Customer complaint of steering wobbles and subsequent modifications to car no. 2064. | 28th May 1913 | Box 28 \ 4 Scan031 | |
| Postscript to a report identifying unbalanced wheels as the cause of steering wobble. | 2nd Jun 1913 | Box 28 \ 4 Scan032 | |
| Trial of a plain thrust bearing in the steering column to address steering wobble. | 2nd Jun 1913 | Box 28 \ 4 Scan033 | |
| Experiments and potential solutions for steering wobble issues. | 4th Jun 1913 | Box 28 \ 4 Scan034 | |
| Chasing progress on an instruction from Mr Royce regarding a test for steering wobbles. | 9th Jun 1913 | Box 28 \ 4 Scan035 | |
| Note regarding a delay in receiving thrust bearings for steering wobble issues and preparing to test reversibility. | 10th Jun 1913 | Box 28 \ 4 Scan036 | |
| Extract from a report detailing tests for steering wobble on a Lanchester car and comparing its performance to other marques. | 24th May 1913 | Box 28 \ 4 Scan037 | |
| Steering wobbles and a subsequent flywheel failure during car trials. | 18th Jul 1913 | Box 28 \ 4 Scan038 | |
| Causes and cures for steering wobble, referencing out-of-balance wheels and tyres. | 15th Aug 1913 | Box 28 \ 4 Scan039 | |
| Steering mechanism tests involving stub axles and plain thrust bearings. | 15th Aug 1913 | Box 28 \ 4 Scan040 | |
| Steering wobbles and tests on plain thrust bearings versus ball thrust bearings. | 15th Aug 1913 | Box 28 \ 4 Scan041 | |
| Comparison of steering effort in pounds for various car makes and bearing types. | 1st Jan 1913 | Box 28 \ 4 Scan042 | |
| Extracting Mr. Royce's suggestions for resolving steering wobble issues, including tests and design changes. | 27th Aug 1913 | Box 28 \ 4 Scan043 | |
| Continued report on various vehicle component tests including throttles, cross members, steering, magneto, and pedal covers. | 2nd Sep 1913 | Box 28 \ 4 Scan044 | |
| Typed copy of a letter discussing issues and causes of steering wobble in early automobiles. | 2nd Sep 1913 | Box 28 \ 4 Scan045 | |
| Steering improvements, testing for reversibility, and the adoption of wire wheels for Series 2800. | 2nd Sep 1913 | Box 28 \ 4 Scan046 | |
| Technical note discussing steering tests, plain thrust bearings, and the adoption of wire wheels. | 2nd Sep 1913 | Box 28 \ 4 Scan047 | |
| Comparing the importance of fouling springs versus steering gear troubles for chassis 1619. | 6th Apr 1913 | Box 28 \ 4 Scan048 | |
| Experiments requested by Mr Royce regarding steering wobbles. | 8th Sep 1913 | Box 28 \ 4 Scan049 | |
| Urgent memo regarding experiments on steering wobbles to minimise the number of chassis produced with the defect. | 9th Sep 1913 | Box 28 \ 4 Scan050 | |
| Daily report on frame tests and steering wobble investigations. | 9th Sep 1913 | Box 28 \ 4 Scan051 | |
| Instructions on correcting steering wobbles by adjusting the steering pivot inclination using tapering packing. | 10th Sep 1913 | Box 28 \ 4 Scan052 | |
| Chronological report on the investigation into steering wobbles, including competitor analysis and design changes. | 12th Sep 1913 | Box 28 \ 4 Scan053 | |
| Instruction memo regarding steering wobbles and a request for aluminium packing for the front axle. | 13th Sep 1913 | Box 28 \ 4 Scan054 | |
| Test report on the reversibility of various makes of steering systems to investigate steering wobbles. | 16th Sep 1913 | Box 28 \ 4 Scan055 | |
| Test results for an 'old Daimler' steering system, noting unreliability and recording steering effort measurements. | 17th Sep 1913 | Box 28 \ 4 Scan056 | |
| Causes and potential cures for steering wobbles. | 17th Sep 1913 | Box 28 \ 4 Scan057 | |
| Typed memo discussing steering gear improvements and comparisons with competitor vehicles. | 17th Sep 1913 | Box 28 \ 4 Scan058 | |
| Investigation into steering wobbles, potential causes like tyre pressure and pivot inclination, and proposed solutions. | 17th Sep 1913 | Box 28 \ 4 Scan059 | |
| Technical discussion on steering system design, including worm and nut pitch, pivot intersection, and overhang. | 18th Sep 1913 | Box 28 \ 4 Scan060 | |
| Merits of the company's steering system, specifically regarding back-lash. | 18th Sep 1913 | Box 28 \ 4 Scan061 | |
| Causes of steering wobbles and comparing steering gear designs with competitors. | 19th Sep 1913 | Box 28 \ 4 Scan062 | |
| Acquisition of a Metallurgique car for steering system comparison and testing. | 19th Sep 1913 | Box 28 \ 4 Scan063 | |
| Reply concerning experiments on steering wobbles based on Mr Royce's theory and proposed further tests. | 19th Sep 1913 | Box 28 \ 4 Scan064 | |
| Departmental memo concerning a steering wobble issue on car No. 1645 owned by Col. Bingham. | 19th Sep 1913 | Box 28 \ 4 Scan065 | |
| Departmental memo discussing the ergonomics of altering the steering column position for chassis 2345. | 19th Sep 1913 | Box 28 \ 4 Scan066 | |
| 'steering wobbles' on a customer's car and a proposal to test a cure on another vehicle. | 19th Sep 1913 | Box 28 \ 4 Scan067 | |
| The steering position for chassis 2345. | 20th Sep 1913 | Box 28 \ 4 Scan068 | |
| Instruction sheet regarding steering wobble on chassis 1645 in the repair shop. | 20th Sep 1913 | Box 28 \ 4 Scan069 | |
| Instructions for Mr. Haldenby concerning a steering wobble on chassis 1645 and how to correct pivot alignment. | 20th Sep 1913 | Box 28 \ 4 Scan070 | |
| Instructions to the Repair Department about steering wobbles. | 20th Sep 1913 | Box 28 \ 4 Scan071 | |
| Pivot pin rust, steering wobble tests, and frame tests with new components. | 9th Sep 1913 | Box 28 \ 4 Scan072 | |
| Report on steering wobbles for Car No. 1185, instructing action based on Mr. Royce's theories. | 9th Sep 1913 | Box 28 \ 4 Scan073 | |
| Proposed solution for steering wobbles alongside a contradictory test report. | 23th Sep 1913 | Box 28 \ 4 Scan074 | |
| Page two of a typed letter regarding experiments and arranging an interview with Mr Haldenby. | 10th Dec 1908 | Box 28 \ 4 Scan075 | |
| Proposed remedy for 'Steering Wobbles' and a disagreement from the Experimental shop. | 24th Sep 1913 | Box 28 \ 4 Scan076 | |
| Internal instruction memo regarding an investigation into steering wobbles. | 12th Sep 1913 | Box 28 \ 4 Scan077 | |
| From C. Johnson discussing Mr. Royce's analysis of steering wobbles and their cures. | 26th Sep 1913 | Box 28 \ 4 Scan078 | |
| Mr. Royce's instructions to investigate and resolve steering wobbles. | 26th Sep 1913 | Box 28 \ 4 Scan079 | |
| Tests conducted to understand and cure steering wobbles caused by front axle tilt and wheel imbalance. | 27th Sep 1913 | Box 28 \ 4 Scan080 | |
| Cover note attaching Mr Haldenby's report on steering wobbles. | 27th Sep 1913 | Box 28 \ 4 Scan081 | |
| The urgent preparation of packing pieces to correct steering wobble issues on various car types. | 29th Sep 1913 | Box 28 \ 4 Scan082 | |
| The results of experiments on steering wobbles, identifying two distinct types. | 29th Sep 1913 | Box 28 \ 4 Scan083 | |
| Causes and cures for wheel wobbles at different speeds. | 29th Sep 1913 | Box 28 \ 4 Scan084 | |
| Record of experiments on car no. 2100 to investigate wheel wobble under various conditions. | 29th Sep 1913 | Box 28 \ 4 Scan085 | |
| Typed report page detailing experiments on vehicle wobbles and steering instability. | 29th Sep 1913 | Box 28 \ 4 Scan086 | |
| Departmental memo inquiring if there is sufficient information to issue repair instructions for steering wobbles. | 1st Oct 1913 | Box 28 \ 4 Scan087 | |
| Steering wobbles and planned improvements, differentiating between 'A' and 'B' types. | 13th Oct 1913 | Box 28 \ 4 Scan088 | |
| Instructions and correspondence regarding an experiment on a plain thrust bearing in a steering column. | 11th Oct 1913 | Box 28 \ 4 Scan089 | |
| Letter concerning the urgent dispatch of chassis 2486 for Mr. Unzue, which was exchanged due to a steering column wobble on the previous chassis. | 18th Oct 1913 | Box 28 \ 4 Scan090 | |
| Steering wobbles by comparing the front axle pivot inclinations of different cars. | 22th Oct 1913 | Box 28 \ 4 Scan091 | |
| Experimental Department 'B' weekly report on frame tests and steering wobbles. | 22th Oct 1913 | Box 28 \ 4 Scan092 | |
| Vehicle wobble, chassis testing, and issues with lubrication and carburettor setup. | 22th Oct 1913 | Box 28 \ 4 Scan093 | |
| Questioning the instruction to fit an untested steering column on chassis 2486 due to lack of standardisation. | 23th Oct 1913 | Box 28 \ 4 Scan094 | |
| Internal instruction memo regarding Chassis 2486, concerning the plain steering thrust and slow pitch worm. | 22th Oct 1913 | Box 28 \ 4 Scan095 | |
| Departmental memo concerning the fitting of steering components to a specific chassis, with clarifying handwritten notes. | 24th Oct 1913 | Box 28 \ 4 Scan096 | |
| Modifications to the steering column for chassis 2100E. | 14th Jan 1913 | Box 28 \ 4 Scan097 | |
| Experimental department weekly report on car, brake, frame, and steering tests. | 2nd Dec 1913 | Box 28 \ 4 Scan098 | |
| Steering and suspension component trials, including a shock absorber, steering worm, and pivot test. | 30th Dec 1913 | Box 28 \ 4 Scan099 | |
| Letter regarding work carried out to cure steering wobbles on chassis 1369. | 30th Dec 1913 | Box 28 \ 4 Scan100 | |
| Internal correspondence and a handwritten reply regarding a persistent steering wobble on chassis 1369. | 31th Dec 1913 | Box 28 \ 4 Scan101 | |
| Article from 'THE AUTOCAR' by John V. Pugh discussing experiments on steering wheel wobble caused by unbalanced wheels. | 3rd Jan 1914 | Box 28 \ 4 Scan102 | |
| Article from 'THE AUTOCAR' magazine discussing the phenomenon of steering wheel wobble and related experiments. | 3rd Jan 1914 | Box 28 \ 4 Scan103 | |
| Plain thrust bearing for the steering gear, ultimately recommending against its use. | 12th Jan 1914 | Box 28 \ 4 Scan104 | |
| Correspondence on Chassis No. 1369. | 13th Jan 1914 | Box 28 \ 4 Scan105 | |
| Instruction memo discussing low-speed steering wobble caused by pivot inclination. | 14th Jan 1914 | Box 28 \ 4 Scan106 | |
| Instructions to fix a vehicle wobble by addressing excessive side play in the spring shackles and dumb irons. | 8th Sep 1913 | Box 28 \ 4 Scan107 | |
| Instructions detailing tests to diagnose a steering wobble by adjusting steering tube springs. | 8th Sep 1913 | Box 28 \ 4 Scan108 | |
| Instruction sheet detailing an investigation into steering wobble by modifying the side steering tube. | 8th Sep 1913 | Box 28 \ 4 Scan109 | |
| Instructions to rectify a steering wobble by adjusting pivot inclination, wheel balance and adding packing washers. | 8th Sep 1913 | Box 28 \ 4 Scan110 | |
| Internal instruction clarifying a procedure for curing steering wobble by adjusting pivot inclination. | 8th Sep 1913 | Box 28 \ 4 Scan111 | |
| Instruction note discussing steering freedom, self-centering, and the cause of wheel wobbles. | 8th Sep 1913 | Box 28 \ 4 Scan112 | |
| Report on steering wobbles and the need for further investigation. | 15th Jan 1914 | Box 28 \ 4 Scan113 | |
| The investigation of a steering wobble issue and the need for a suitable test vehicle. | 15th Jan 1914 | Box 28 \ 4 Scan114 | |
| Internal memorandum discussing the investigation into a high-speed wobble or flutter issue in a car design. | 14th Jan 1921 | Box 28 \ 4 Scan115 | |
| Steering wobble, contradicting previous verbal statements and noting a potential fix. | 16th Jan 1914 | Box 28 \ 4 Scan116 | |
| Modifications to the Side Steering Tube and springs to address steering wobble issues. | 22th Jan 1914 | Box 28 \ 4 Scan117 | |
| Continued note on eliminating wobble using new heavy round springs under scheme B. | 22th Jan 1914 | Box 28 \ 4 Scan118 | |
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