| Description | Date | Identifier | |
| Performance review and specification breakdown of the Talbot 90 car from the Olympia Motor Show. | 26th Oct 1931 | Morton \ M19 img258 | |
| Technical review of the Talbot 75 and the 18/80 M.G. Mark II, detailing performance, specifications, silence, and vibrations. | 26th Oct 1931 | Morton \ M19 img259 | |
| Road performance review of a car, followed by detailed specifications for a Hispano Suiza 12 cylinder engine. | 26th Oct 1931 | Morton \ M19 img260 | |
| Continued vehicle evaluation report discussing chassis, silence, vibration, and performance. | 26th Oct 1931 | Morton \ M19 img261 | |
| Comparative analysis of vehicle components including brakes, clutch, and engine mounting, with references to Hispano and Chrysler models. | 26th Oct 1931 | Morton \ M19 img262 | |
| Report page detailing changes to an inlet manifold and other vehicle specifications. | 26th Oct 1931 | Morton \ M19 img263 | |
| Observations on radiator mountings, induction pipes, carburetters, and engine mountings from competing car manufacturers. | 26th Oct 1931 | Morton \ M19 img264 | |
| Non-technical precis of competitor cars. | 26th Oct 1931 | Morton \ M19 img265 | |
| Summary of impressions from a show, comparing British and American cars on price, silence, and smoothness. | 26th Oct 1931 | Morton \ M19 img266 | |
| Comparing the power output of a single jet experimental carburettor against a fixed choke diffuser type. | 28th Oct 1931 | Morton \ M19 img267 | |
| Report page discussing the effects of valve lift and clearance on engine brake horsepower. | 28th Oct 1931 | Morton \ M19 img268 | |
| Graph comparing different induction pipes and carburettors, plotting BHP and induction depression against engine RPM. | 29th Oct 1931 | Morton \ M19 img269 | |
| Results of a rough test on masked inlet valves. | 29th Oct 1931 | Morton \ M19 img270 | |
| Performance comparison graph between a 108° masked camshaft and a 114° unmasked camshaft. | 29th Oct 1931 | Morton \ M19 img271 | |
| Performance comparison graph between a 112° masked camshaft and a 114° unmasked camshaft. | 29th Oct 1931 | Morton \ M19 img272 | |
| Performance graph comparing Brake Horsepower and Brake Mean Effective Pressure against RPM for different exhaust system configurations. | 1st Nov 1931 | Morton \ M19 img273 | |
| Mechanical failures observed during high-speed test bed running of the Phantom II engine. | 1st Nov 1931 | Morton \ M19 img274 | |
| Blueprint diagram showing a cracked cylinder head assembly. | 2nd Nov 1936 | Morton \ M19 img275 | |
| Synchro-mesh gearbox test for the Phantom II, focusing on its performance with increased inertia. | 12th Nov 1931 | Morton \ M19 img276 | |
| Blueprint outlining a list of twelve design features for a mechanical component. | 12th Nov 1931 | Morton \ M19 img277 | |
| Cross-sectional blueprint of a mechanical assembly indicating maximum rebound and bump levels. | 12th Nov 1931 | Morton \ M19 img278 | |
| Blueprint drawing of a mechanical pump or casing assembly. | 12th Nov 1931 | Morton \ M19 img279 | |
| Graph showing the output speed performance of various dynamos, plotting ampere output against RPM. | 4th Feb 1931 | Morton \ M19 img280 | |
| Graph showing output speed performance curves for various dynamos at 80°C. | 4th Feb 1931 | Morton \ M19 img281 | |
| Performance graph of B.M.E.P. and B.HP against R.P.M. for a 3.9 Litre 6-cylinder engine. | 7th Feb 1930 | Morton \ M19 img282 | |
| Performance graph of a 3.9 Litre, 6-cylinder engine, showing B.HP and B.M.E.P. against R.P.M. | 7th Feb 1930 | Morton \ M19 img283 | |
| Graph comparing power curves (BHP and MEP) for a Phantom II engine with three different camshaft specifications. | 20th Jul 1931 | Morton \ M19 img284 | |
| Graph of engine B.HP and M.E.P. against R.P.M. with corresponding valve timing diagrams for three different camshafts. | 20th Jul 1931 | Morton \ M19 img285 | |
| Log of 20 EX steering tests using a snatchmeter to record performance under various conditions. | 20th Jul 1931 | Morton \ M19 img286 | |
| Table of steering tests using a snatchmeter to record joggling under various conditions. | 20th Jul 1931 | Morton \ M19 img287 | |
| Graph of cooling tests showing air temperature rise across the radiator with the bonnet on and off. | 23th Sep 1931 | Morton \ M19 img288 | |
| Graph of air temperature rise tests across a radiator and from the radiator to the floorboards, plotted against road speed. | 23th Sep 1931 | Morton \ M19 img289 | |
| Blueprint graph comparing air temperature rise across a radiator with the bonnet on and off at various road speeds. | 23th Sep 1931 | Morton \ M19 img290 | |
| Graph plotting air temperature increase versus road speed for a radiator using hexagonal matrix tubes. | 23th Sep 1931 | Morton \ M19 img291 | |
| Performance graph comparing different carburetor choke sizes for a Pit Unit B.J.55 engine. | 23th Sep 1931 | Morton \ M19 img292 | |
| Engine performance graph showing Brake Horsepower, Brake Mean Effective Pressure, and valve timing against RPM. | 5th Oct 1931 | Morton \ M19 img293 | |
| Performance test results for the 27 Ex. Car at Brooklands, detailing acceleration and speed data. | 5th Oct 1931 | Morton \ M19 img294 | |
| American battery ignition systems, including current draw, coil construction, and the move away from magnetos. | 1st Apr 1924 | Morton \ M20.1 img001 | |
| Annotated drawing of a hydraulic relay for a combined magneto and battery automatic ignition advance system. | 1st Apr 1924 | Morton \ M20.1 img002 | |
| Page 2 of a report detailing a 5-piston central valve arrangement with diagrams. | 1st Apr 1924 | Morton \ M20.1 img003 | |
| With a diagram proposing an automatic ignition advance mechanism, discussing its implementation and relation to preventing engine detonation. | 1st Apr 1924 | Morton \ M20.1 img004 | |
| Failures of a worm tube and cross steering lever bolts from a 40/50 front brake bump test. | 1st Apr 1924 | Morton \ M20.1 img005 | |
| Analysis of lag and sticking issues in a servo mechanism, suggesting adding radial grooves to the ferodo plates as a solution. | 7th Apr 1924 | Morton \ M20.1 img006 | |
| Simplification of front axle controls and suspension design. | 4th Oct 1924 | Morton \ M20.1 img007 | |
| Design and material choice for the brake operating gear. | 4th Oct 1924 | Morton \ M20.1 img008 | |
| Secret memo discussing the need for more ignition advance and the positioning of a second spark plug. | 10th Apr 1924 | Morton \ M20.1 img009 | |
| Technical memorandum discussing steering design improvements to reduce road shocks. | 1st Apr 1924 | Morton \ M20.1 img010 | |
| Design review document with feedback and suggestions for a servo mechanism. | 11th Apr 1924 | Morton \ M20.1 img011 | |
| Design memo discussing connecting rods, lifting pins, and brake servo action with diagrams. | 1st Apr 1924 | Morton \ M20.1 img012 | |
| With hand-drawn sketches discussing the design and action of a servo mechanism. | 1st Apr 1924 | Morton \ M20.1 img013 | |
| Annotated cross-section diagrams and notes discussing a mechanical assembly, likely related to a clutch or brake system. | 1st Apr 1924 | Morton \ M20.1 img014 | |
| Design, performance, and issues related to four-wheel brake systems. | 1st Apr 1924 | Morton \ M20.1 img015 | |
| Servo design, comparing different cone angles and mechanical arrangements to improve performance and avoid lag. | 1st Apr 1924 | Morton \ M20.1 img016 | |
| Secret technical memo with annotated diagrams detailing further views on a servo design. | 1st Apr 1924 | Morton \ M20.1 img017 | |
| Sketches and notes discussing the design and arrangement of various linkage components, including rods, pins, and levers. | 16th Apr 1924 | Morton \ M20.1 img018 | |
| Steering issues when a 36-inch wheel encounters an obstruction, comparing tyre types and potential solutions. | 16th Apr 1924 | Morton \ M20.1 img019 | |
| Single ratchet servo scheme for braking. | 25th Apr 1924 | Morton \ M20.1 img020 | |
| Issues and proposed improvements for the E.A.C. engine, referencing comparisons to the Goshawk engine. | 5th May 1924 | Morton \ M20.1 img021 | |
| Secret memo forwarding F.H. Royce's comments on servo design, front wheel braking, and travel arrangements. | 1st May 1924 | Morton \ M20.1 img022 | |
| Servo design, braking efficiency, and proposed improvements. | 1st May 1924 | Morton \ M20.1 img023 | |
| Optimal design and operation of a slow-speed brake servo. | 3rd May 1924 | Morton \ M20.1 img024 | |
| Secret memo discussing the adoption of a direct foot pressure servo braking system for all four wheels over a rear-brake-only scheme. | 5th Mar 1924 | Morton \ M20.1 img025 | |
| Secret memorandum detailing modifications to a servo mechanism for improved performance and simpler construction. | 3rd May 1924 | Morton \ M20.1 img026 | |
| Avoidance of a phenomenon called 'jaggers' by testing stiff versus flexible brake drums. | 3rd May 1924 | Morton \ M20.1 img027 | |
| Potential benefits of using a heavier disc crankshaft in an aero engine. | 8th May 1924 | Morton \ M20.1 img028 | |
| Design of a production pedal arrangement, including the foot plate and the choice between brass and steel screws. | 1st May 1924 | Morton \ M20.1 img029 | |
| Advantages of the 'adopted' braking and servo scheme over competing systems. | 28th May 1924 | Morton \ M20.1 img030 | |
| Test report on brake performance, engine comparison with a Hispano, and other defects like clutch and carburettor issues, with proposed solutions. | 1st May 1924 | Morton \ M20.1 img031 | |
| Secret memo discussing a clutch fault caused by gravity and a proposed design change involving a spring. | 1st May 1924 | Morton \ M20.1 img032 | |
| Drawing LeC. 1869, which details a spring pressure device for a clutch brake. | 12th May 1924 | Morton \ M20.1 img033 | |
| Secret memo discussing fitting a braking system and swapping a 3-speed for a new 4-speed gearbox. | 13th May 1924 | Morton \ M20.1 img034 | |
| Design of a more rigid front axle control and improvements to steering. | 17th May 1924 | Morton \ M20.1 img035 | |
| Proposed modifications to the frame and track width. | 20th May 1924 | Morton \ M20.1 img036 | |
| Secret memo discussing the deflection of springs during front wheel braking and pivot inclination. | 20th May 1924 | Morton \ M20.1 img037 | |
| Outlining a trip to Derby to investigate steering, braking, and suspension problems. | 21th May 1924 | Morton \ M20.1 img038 | |
| The decision to use a governed Scintilla magneto and LeC. 1849 switchbox on the EAC.2 engine. | 24th May 1924 | Morton \ M20.1 img039 | |
| Braking characteristics, skidding tendencies, and brake drum materials. | 11th Aug 1920 | Morton \ M20.1 img040 | |
| Secret memo regarding defects and desired modifications for the steering servo adjustment. | 1st May 1924 | Morton \ M20.1 img041 | |
| Front axle control issues with semi-elliptic springs and front-wheel braking, suggesting modifications or the addition of radius rods. | 1st May 1924 | Morton \ M20.1 img042 | |
| Experimental tests on different patterns of front axle control. | 29th May 1924 | Morton \ M20.1 img043 | |
| Secret letter from F.H. Royce to A.W. Claremont regarding the key points of a 4-wheel brake patent. | 3rd Jun 1924 | Morton \ M20.1 img044 | |
| Internal memorandum providing opinions on wire wheels, bevel pinions, gear levers, and foot brakes. | 3rd Jun 1924 | Morton \ M20.1 img045 | |
| Staff holidays, a request to borrow a car, and a suggestion to test new balloon tyres. | 3rd Jun 1924 | Morton \ M20.1 img046 | |
| Performance of a car with an adopted braking scheme. | 6th Jun 1924 | Morton \ M20.1 img047 | |
| Brake jaggers, servo noise, and the general performance of the braking system. | 23th Jun 1924 | Morton \ M20.1 img048 | |
| Patent implications of a plate clutch servo design in comparison to Renault and Hispano systems. | 23th Jun 1924 | Morton \ M20.1 img049 | |
| Letter from Chief Engineer F.H. Royce to Mr. Micklewood arranging the testing of an experimental engine. | 24th Jun 1924 | Morton \ M20.1 img050 | |
| Providing feedback from Mr. Royce on American standardisation sheets Nos. 31-39. | 26th Jun 1924 | Morton \ M20.1 img051 | |
| Scheme for adapting double radius rods to the front axle control. | 26th Jun 1924 | Morton \ M20.1 img052 | |
| Noise issue in the servo drive, comparing 7 to 1 and 10 to 1 reduction ratios. | 27th Jun 1924 | Morton \ M20.1 img053 | |
| Secret memo detailing changes to petrol tank fittings, including a vacuum system and a 2-gallon reserve for cars with 4-wheel brakes. | 27th Jun 1924 | Morton \ M20.1 img054 | |
| From R. to HS. regarding the successful development of quiet gears for the 4-wheel brake servo drive. | 30th Jun 1924 | Morton \ M20.1 img055 | |
| Finding the required degree of ignition advance on the EAC engine. | 12th Jul 1923 | Morton \ M20.2 img001 | |
| The ignition advance required to maintain power for an E.A.C. engine. | 12th Jul 1923 | Morton \ M20.2 img002 | |
| Showing engine performance data under different ignition settings. | 1st Apr 1924 | Morton \ M20.2 img003 | |
| Showing data for engine performance with both ignitions. | 1st Apr 1924 | Morton \ M20.2 img004 | |
| Graph comparing ignition curves for an E.A.C. engine against Hispano engine curves. | 31th Mar 1924 | Morton \ M20.2 img005 | |
| Graph of ignition curves showing minimum advance versus RPM to maintain output for an E.A.C. engine. | 31th Mar 1924 | Morton \ M20.2 img006 | |
| Bump test of a 40/50 chassis fitted with front wheel brake parts and springs. | 1st Apr 1924 | Morton \ M20.2 img007 | |
| List of important component failures with their running times and remarks. | 1st Apr 1924 | Morton \ M20.2 img008 | |
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