| Description | Date | Identifier | |
| Analysis of 'jellyfying' and road shock issues with proposed palliative measures. | 2nd Apr 1931 | Box 28 \ 5 Scan054 | |
| Investigation into vehicle booming and radiator movement, summarising findings and proposing future permanent solutions. | 2nd Apr 1931 | Box 28 \ 5 Scan055 | |
| Investigations into frame vibration ('jellying'), comparing to Maybach and detailing experiments with engine mounts and frame stiffening. | 2nd Apr 1931 | Box 28 \ 5 Scan056 | |
| Test report on an undamped frame stiffener for 'jellying' on car 25-EX. | 21th Apr 1931 | Box 28 \ 5 Scan057 | |
| Assumptions about experimenting with stiffening side members. | 28th Apr 1931 | Box 28 \ 5 Scan058 | |
| Frame distortion tests, specifically measuring torsional stiffness and front-end jellying. | 29th May 1931 | Box 28 \ 5 Scan059 | |
| Vehicle frame jellying, comparing different engine mounting and chassis configurations on various car models. | 29th May 1931 | Box 28 \ 5 Scan060 | |
| Series of five graphs showing the results of frame deflection and distortion tests under various conditions. | 28th May 1931 | Box 28 \ 5 Scan061 | |
| Stamped blank page from a document set. | 30th May 1931 | Box 28 \ 5 Scan062 | |
| Tests to investigate persistent steering jiggling on Phantom II cars. | 1st Aug 1931 | Box 28 \ 5 Scan063 | |
| Comparative road tests investigating steering stability, suspension, tyre pressure, and track width. | 31th Aug 1931 | Box 28 \ 5 Scan064 | |
| Tests concerning steering column damping, spring effects, axle damping, and tyre performance. | 31th Aug 1931 | Box 28 \ 5 Scan065 | |
| Spring eye movement during braking and joggle tests, and the development of a flexible shackle. | 1st Aug 1931 | Box 28 \ 5 Scan066 | |
| Diagram of a 'Snatchmeter' device for measuring steering movement. | 21th Aug 1931 | Box 28 \ 5 Scan067 | |
| Blank page with a date and location stamp from Derby. | 21th Aug 1931 | Box 28 \ 5 Scan068 | |
| Graphical analysis of the maximum movement of a flexible shackle spring eye under various driving conditions. | 31th Aug 1931 | Box 28 \ 5 Scan069 | |
| Almost blank page with a purple archival date stamp in the bottom right corner. | 31th Aug 1931 | Box 28 \ 5 Scan070 | |
| Table of steering tests using a snatchmeter to record joggling under various car conditions. | 31th Aug 1981 | Box 28 \ 5 Scan071 | |
| Almost entirely blank or illegible document with a purple ink stamp. | 31th Aug 1981 | Box 28 \ 5 Scan072 | |
| Frame stiffness, body construction, and engine mounting strategies, with references to Packard and Lancia. | 19th Sep 1931 | Box 28 \ 5 Scan073 | |
| Query asking for an explanation for a severe steering wobble that develops after 10,000 miles. | 24th Sep 1931 | Box 28 \ 5 Scan074 | |
| Complaints of steering joggles and shocks on Phantom II cars and proposed solutions. | 26th Feb 1932 | Box 28 \ 5 Scan075 | |
| Steering irreversibility, flexible shackles, and a proposal for a 10,000-mile test on car 19-KX. | 26th Feb 1932 | Box 28 \ 5 Scan076 | |
| Recurring issue of 'frame jellying' and tests on potential solutions. | 7th Mar 1932 | Box 28 \ 5 Scan077 | |
| Fitting of a spring shackle for steering joggles on models P.2., J.3., & J.1. | 7th Mar 1932 | Box 28 \ 5 Scan078 | |
| Severe 'jellying' issue with a demonstration car (60-JS) ahead of Continental trials and seeking a solution. | 8th Jun 1932 | Box 28 \ 5 Scan079 | |
| Radiator wobbling and fan knocking issues on cars 61-JS and 16-MS, and arranging for repairs. | 20th Jun 1932 | Box 28 \ 5 Scan080 | |
| Need to increase initial radiator movement on P.2 and N.2 series cars. | 21th Jun 1932 | Box 28 \ 5 Scan081 | |
| Suggestion to alter the radiator bottom tank to address movement complaints. | 21th Jun 1932 | Box 28 \ 5 Scan082 | |
| Customer complaint about radiator movement on a Fairhurst 16-MS car. | 22th Jun 1932 | Box 28 \ 5 Scan083 | |
| Complaint of radiator movement on Fairhurst's car 16-MS, including a list of attached parts for the repair. | 23th Jun 1932 | Box 28 \ 5 Scan084 | |
| The despatch of parts and information to resolve radiator movement complaints. | 23th Jun 1932 | Box 28 \ 5 Scan085 | |
| Proposed test to demonstrate improvements to 'frame jellying' by adding weight to the engine. | 28th Jun 1932 | Box 28 \ 5 Scan086 | |
| Proposal to test a stiffened sub-frame to understand and overcome the 'jellying' phenomenon in a chassis. | 6th Jul 1932 | Box 28 \ 5 Scan087 | |
| Road tests conducted in France on chassis 60.JS, focusing on radiator and body movement. | 14th Jul 1932 | Box 28 \ 5 Scan088 | |
| Results of road tests on vehicle component movement and vibration. | 14th Jul 1932 | Box 28 \ 5 Scan089 | |
| Results of vehicle stability tests focusing on torque reaction dampers. | 14th Jul 1932 | Box 28 \ 5 Scan090 | |
| Test report detailing the results of vehicle dynamics and component movement under various damper settings. | 14th Jul 1932 | Box 28 \ 5 Scan091 | |
| Test results comparing radiator movement, steering joggles, and torque reaction dampers, with observations on front wings. | 14th Jul 1932 | Box 28 \ 5 Scan092 | |
| Conclusions of a report on radiator mounting, oscillation, and its effect on wing steadiness. | 18th Aug 1932 | Box 28 \ 5 Scan093 | |
| Issue of radiator wing movement and frame 'jellying' on the Phantom II model and proposed solutions. | 18th Aug 1932 | Box 28 \ 5 Scan094 | |
| Test report on mounting the radiator on the engine for the Phantom II, including a basic sketch. | 10th Oct 1932 | Box 28 \ 5 Scan095 | |
| Requesting the urgent completion of a stiff subframe for frame jellying tests. | 10th Oct 1932 | Box 28 \ 5 Scan096 | |
| 'frame jellying' issue on the 40/50 HP model 19-EX, discussing radiator movement and a proposed fix. | 16th Feb 1933 | Box 28 \ 5 Scan097 | |
| Expressions for the determination of interference in involute teeth. | 16th Mar 1918 | Box 28 \ 5 Scan098 | |
| Determination of interference in involute teeth. | 16th Mar 1918 | Box 28 \ 5 Scan099 | |
| Mathematical calculations for determining the conditions and extent of interference in pitch circles. | 28th Apr 1917 | Box 28 \ 5 Scan100 | |
| Calculations for determining gear interference, with an example for an Early Falcon epicyclic gear. | 28th Apr 1917 | Box 28 \ 5 Scan101 | |
| Page 4 of a calculation, showing the steps to find a final dimension in mm and inches. | 26th Apr 1917 | Box 28 \ 5 Scan102 | |
| Diagram for the determination of interference in involute teeth. | 26th Jan 1928 | Box 28 \ 5 Scan103 | |
| Request for four photostat prints of a diagram for the determination of the interference of involute teeth. | 19th Apr 1919 | Box 28 \ 5 Scan104 | |
| Confirming the dispatch of four photostat copies and an original diagram regarding the interference of involute teeth. | 28th Apr 1919 | Box 28 \ 5 Scan105 | |
| Diagrams and calculations for interference in involute teeth for a sun wheel and planet pinion. | 28th Apr 1919 | Box 28 \ 5 Scan106 | |
| Diagram and calculations for a 250 HP Sun Wheel and Planet Pinion gear mesh. | 10th Mar 1916 | Box 28 \ 5 Scan107 | |
| Sternol Oil received from the Royal Aircraft Factory for experimental use. | 10th Mar 1916 | Box 28 \ 5 Scan108 | |
| Chasing a report on the R.A.F. oil known as Sternol. | 26th Apr 1916 | Box 28 \ 5 Scan109 | |
| Requesting the analysis results for a sample of Sternol oil for Mr. Royce. | 22th Apr 1929 | Box 28 \ 5 Scan110 | |
| Report on Sternol Oil, its use in aero engines, and a price comparison with Castrol. | 27th May 1916 | Box 28 \ 5 Scan111 | |
| Letter from Prices' Company Ltd. regarding a delayed analysis of an Aero Engine Oil sample and potential substitutes. | 25th May 1916 | Box 28 \ 5 Scan112 | |
| Letter from Prices' Company Limited discussing oil viscosity tests and providing samples for trial. | 25th May 1916 | Box 28 \ 5 Scan113 | |
| Test report detailing the properties of various oil samples. | 1st Jun 1916 | Box 28 \ 5 Scan114 | |
| Requesting a report and analysis results for Sternol oil. | 1st Jun 1916 | Box 28 \ 5 Scan115 | |
| High-speed steering wobbles caused by unbalanced Dunlop inner tubes. | 1st Sep 1925 | Box 29 \ 1 Scan001 | |
| The reliability of Houdaille hydraulic dampers for high-speed steering wobbles. | 12th Jun 1925 | Box 29 \ 1 Scan002 | |
| Causes and potential solutions for high-speed steering wobbles. | 1st Sep 1925 | Box 29 \ 1 Scan003 | |
| Vehicle dynamics, focusing on gyroscopic movements, damping, and weight reduction. | 2nd Sep 1925 | Box 29 \ 1 Scan004 | |
| Tests conducted to understand high-speed steering wobbles. | 2nd Sep 1925 | Box 29 \ 1 Scan005 | |
| Inquiry to Dunlop Rubber Co. regarding testing facilities for the dynamic balance of wheels and tyres. | 2nd Sep 1925 | Box 29 \ 1 Scan006 | |
| Inquiry to the Cambridge Instrument Co. regarding the testing of dynamical balance for low-pressure tyres. | 2nd Sep 1925 | Box 29 \ 1 Scan007 | |
| Experimental apparatus built to investigate high-speed steering wobbles. | 2nd Sep 1925 | Box 29 \ 1 Scan008 | |
| Concerning high-speed steering wobbles. | 12th Jun 1925 | Box 29 \ 1 Scan009 | |
| High-speed steering wobble, its causes, and contributing factors like brakes and tyres. | 12th Jun 1925 | Box 29 \ 1 Scan010 | |
| The causes of front axle wobble and the application of damping devices to prevent it. | 12th Jun 1925 | Box 29 \ 1 Scan011 | |
| Investigating and solving vehicle wobble through damping in steering and axles. | 1st Sep 1925 | Box 29 \ 1 Scan012 | |
| Report on tests conducted in France. | 1st Sep 1925 | Box 29 \ 1 Scan013 | |
| Letter discussing tyre pressure tests and the causes of steering wobble on chassis 9-G-111. | 24th Aug 1925 | Box 29 \ 1 Scan014 | |
| Report on steering wobble tests for the 20 HP car. | 1st Sep 1925 | Box 29 \ 1 Scan015 | |
| Tests for steering wobbles on chassis 9-G-111. | 30th Aug 1925 | Box 29 \ 1 Scan016 | |
| Report concluding that after re-balancing the wheels, the steering was perfect with tyre pressures at 40 lbs. | 1st Sep 1925 | Box 29 \ 1 Scan017 | |
| Mechanical device to counteract high-speed steering wobbles. | 1st Sep 1925 | Box 29 \ 1 Scan018 | |
| Proposal for an anti-wobbling device by strengthening shock absorbers and adding a torsional spring. | 4th Sep 1925 | Box 29 \ 1 Scan019 | |
| Confirmation of a wire from Royce regarding gyrostatic wobble and wheel precession. | 4th Sep 1925 | Box 29 \ 1 Scan020 | |
| Tests investigating high-speed steering wobbles. | 12th Jun 1925 | Box 29 \ 1 Scan021 | |
| Confirmation of a telegram from R. (Royce) to Clark regarding a 'gyrostatic wobble' issue and arranging a meeting. | 4th Sep 1925 | Box 29 \ 1 Scan022 | |
| Technical memorandum discussing the phenomenon of front wheel wobbles, specifically addressing gyroscopic wobble. | 4th Sep 1925 | Box 29 \ 1 Scan023 | |
| Continued discussion on the physics of wheel motion, specifically conical oscillation and precession. | 4th Sep 1925 | Box 29 \ 1 Scan024 | |
| Gyroscopic wobble and precession in relation to wheel speed and brake drums. | 4th Sep 1925 | Box 29 \ 1 Scan025 | |
| High-speed steering wobble observed during testing of a Lambda Lancia car. | 5th Sep 1925 | Box 29 \ 1 Scan026 | |
| Chassis twisting, frame distortion, and high-speed wobble. | 12th Jun 1925 | Box 29 \ 1 Scan027 | |
| Engine and vehicle specifications. | 1st Sep 1925 | Box 29 \ 1 Scan028 | |
| Blueprint showing a detailed assembly of a mechanical component, likely a carburetor. | 9th Sep 1925 | Box 29 \ 1 Scan029 | |
| The causes of high-speed wheel wobble, concluding that wheel balancing is the most effective cure. | 9th Sep 1925 | Box 29 \ 1 Scan030 | |
| The steering and braking of a Lambda Lancia car. | 10th Sep 1925 | Box 29 \ 1 Scan031 | |
| The importance of wheel balance in reducing road shocks transmitted to the steering. | 10th Sep 1925 | Box 29 \ 1 Scan032 | |
| High-speed steering wobbles in a Hispano Suiza, with comparisons to the Phantom. | 10th Sep 1925 | Box 29 \ 1 Scan033 | |
| Letter to Dunlop Rubber Co. regarding the fitting of balloon tyres to Michelin disc wheels for experiments on high-speed steering wobbles. | 10th Sep 1925 | Box 29 \ 1 Scan034 | |
| Alterations to pivot lean to resolve high-speed steering wobbles. | 10th Sep 1925 | Box 29 \ 1 Scan035 | |
| Improvements to the New Phantom and India models' steering to address slow speed wobbles and road shocks. | 10th Sep 1925 | Box 29 \ 1 Scan036 | |
| Mitigating high-speed wobbles and road shocks through tyre selection, balancing, and a new damped pendulum lever design. | 11th Sep 1925 | Box 29 \ 1 Scan037 | |
| Evaluation of Derihon hydraulic shock absorbers against Houdaille models. | 11th Sep 1925 | Box 29 \ 1 Scan038 | |
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