Rolls-Royce Archives
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
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DescriptionDateIdentifier
Oil pressure application methods for piston and crankshaft tests.27th Apr 1918Morton \ M2.1  img002
From 'E' to 'DA' giving instructions to proceed with an experimental test apparatus as per Mr. Royce's wishes.27th Apr 1918Morton \ M2.1  img003
Plan view diagram illustrating an oil pump connected to a piston and motor cylinder for reverse torque.27th Apr 1918Morton \ M2.1  img004
Pictorial and schematic diagrams for a Condor battery ignition system, illustrating an un-earthed low tension circuit.25th Jun 1918Morton \ M2.1  img005
Hand-drawn sketch of a Condor connecting rod with an attached design note.24th Mar 1918Morton \ M2.1  img006
Design alterations for a two-cylinder experimental 'V' Condor engine.24th Mar 1918Morton \ M2.1  img007
Design specifications for various aero engine components.10th Feb 1919Morton \ M2.1  img008
Engine breathing, crankcase vacuum, and the fitting of a larger breather or 'blow-off' valve.10th Feb 1919Morton \ M2.1  img009
Performance of a trembler coil on a battery ignition system and requesting a specific small model coil.12th Mar 1918Morton \ M2.1  img010
Letter to Count Carlos de Salamanca in Madrid regarding fuel substitutes for petrol in R.R. engines.29th Jan 1918Morton \ M2.1  img011
Page two of a letter to Count Carlos de Salamanca regarding alternative fuels and oil testing procedures.29th Jan 1918Morton \ M2.1  img012
The design of an elastic mounting for the 'Eagle' Electrical Starting Gear.26th Jan 1918Morton \ M2.1  img013
Requesting tests on the 'Eagle' Electrical Starting Gear regarding engine vibration effects.24th Jan 1918Morton \ M2.1  img014
Assignment of responsibility for developing and implementing production methods, tool design, and component clearances.4th Jan 1918Morton \ M2.1  img015
The methods of production and fitting for crankchambers, brasses, and bearings, emphasizing interchangeability and repair standards.4th Jan 1918Morton \ M2.1  img016
Clarifying a misunderstanding about production methods, redirecting focus to work on exhaust valves.25th Jan 1918Morton \ M2.1  img017
Concluding page of a memorandum regarding methods of production.25th Jan 1918Morton \ M2.1  img018
Request for analytical details and comparative figures for 'Quick Step' steel for valves.9th Jan 1918Morton \ M2.1  img019
Visit to West Wittering, stressing the importance of in-person discussions over correspondence.25th Feb 1918Morton \ M2.1  img020
From R. to EH. suggesting a document be sent to the Technical Director of the Air Ministry.12th Sep 1918Morton \ M2.1  img021
Request for parts and tools required to fire up an office anthracite stove.12th Sep 1918Morton \ M2.1  img022
Responding to a previous suggestion about the basis for comparing the Goshawk engine.8th May 1922Morton \ M2.1  img023
Vehicle mileage, future use inquiries, and rectifications for a misfiring cylinder and a loose spring clip.18th May 1922Morton \ M2.1  img024
Poor quality of fan belts and a broken thermometer on several cars.19th May 1922Morton \ M2.1  img025
The issue of front springs becoming loose on the front axle.19th May 1922Morton \ M2.1  img026
The disadvantages of the Goshawk 11 spring fixing method and a noticeable fault.20th May 1922Morton \ M2.1  img027
Telegram reporting cracked exhaust seats on a Goshawk engine and requesting a new cylinder head.20th May 1922Morton \ M2.1  img028
Letter confirming the need for a new cylinder head due to valve and seat damage.20th May 1922Morton \ M2.1  img029
Multiple vehicle faults including a cracked valve seat, chassis issues, and problems with the rear axle and brakes.20th May 1922Morton \ M2.1  img030
The condition of the distributor's LT contact, noting pitting and recording mileage.1st Jan 1923Morton \ M2.1  img031
Cracked cylinder head and front cross member on a Goshawk-11 vehicle.1st Jan 1923Morton \ M2.1  img032
Request for instructions on modifications to a cross member that has failed after 10,000 miles.23th May 1922Morton \ M2.1  img033
Letter detailing vehicle repairs, including replacing a broken aluminum packing piece with steel and addressing engine overoiling issues.23th May 1922Morton \ M2.1  img034
Adjustments to pressure and front springs, with observations on tyre wear.24th May 1922Morton \ M2.1  img035
Correspondence from Laval, France regarding logistical arrangements for car 69H and answering a query on water loss.24th May 1922Morton \ M2.1  img036
Note discussing an investigation into engine misfiring, attributing the cause to sticky/leaking valves and bad points.26th May 1922Morton \ M2.1  img037
Comparison of the Marmon car cylinder head with the Goshawk cylinder head, detailing design differences and observed cracking issues.26th May 1922Morton \ M2.1  img038
Test report on the Goshawk engine's cooling system, detailing issues with air bubbles and water loss upon boiling.11th Aug 1931Morton \ M2.1  img039
Letter detailing issues encountered while fitting a new cylinder head and replacing a battery on car 69H.28th May 1922Morton \ M2.1  img040
Memo discussing the logistics and mechanical issues of vehicles 79H and 69H in France.27th Mar 1929Morton \ M2.1  img041
Letter to Mr. Royce discussing production plans, batch sizes, and component changes for the 20 HP chassis.27th Mar 1929Morton \ M2.1  img042
Engine and chassis development, specifically about increasing engine size and disassociating the turbulent head from the long chassis.3rd Apr 1928Morton \ M2.1  img043
Performance of the 20 HP car, suggesting an engine redesign and noting changes since its introduction.3rd Apr 1928Morton \ M2.1  img044
Comparing the 20 HP model's engine performance against competitors and considering an increase in bore and stroke.3rd Apr 1928Morton \ M2.1  img045
Note regarding compression, engine speeds, and carburetter restriction.1st Apr 1928Morton \ M2.1  img046
Copy of a letter from F.H. Royce discussing production policy and improvements for the 20 HP model.4th Apr 1929Morton \ M2.1  img047
From F. H. Royce discussing future policy on production speed, model design, and engine size.26th Jul 1918Morton \ M2.1  img048
Proposals for crankshaft and piston testing apparatus.26th Jul 1918Morton \ M2.1  img049
Examination of the Packard car's petrol tank design which features a reserved compartment.17th Aug 1920Morton \ M2.1  img050
Cover letter enclosing information about the 20 HP chassis position for a Directors' meeting.12th Apr 1929Morton \ M2.2  img001
Letter to Lord Wargrave concerning the 20 HP Chassis and notes for an upcoming Board Meeting.12th Apr 1929Morton \ M2.2  img002
Production decisions and feature considerations for a new batch of 20 HP chassis.12th Apr 1929Morton \ M2.2  img003
Notes on the 20 HP Chassis, discussing production modifications, sales, and financial implications.12th Apr 1929Morton \ M2.2  img004
Comparison of power, weight ratios, and engine capacities of the 20 HP chassis against other models and competitors.12th Apr 1929Morton \ M2.2  img005
Notes on the 20 HP chassis, focusing on the policy for bodywork and collaborations with coachbuilders.12th Apr 1929Morton \ M2.2  img006
Notes on the 20 HP Chassis, discussing issues with body weight, sales, and production.12th Apr 1929Morton \ M2.2  img007
Notes on the 20 HP chassis performance, comparison with the 40/50 HP, and proposed modifications.12th Apr 1929Morton \ M2.2  img008
Recommendations on ordering material for 20 HP chassis, potential modifications, and sales strategy.2nd Apr 1929Morton \ M2.2  img009
Future electrical equipment and wiring scheme modifications for a car.26th Jul 1920Morton \ M2.3  img001
Alternative electrical wiring schemes, including combined switchbox/ammeter units and non-earthed dynamo systems.26th Jul 1920Morton \ M2.3  img002
Design alternatives for a distribution board and wiring system, specifically earthed vs. non-earthed options.26th Jul 1920Morton \ M2.3  img003
Wiring arrangements for a Smith cut-out and distribution board, including a reference to battery earthing connections on chassis 6 EX.26th Jul 1920Morton \ M2.3  img004
Page discussing frame and earth connection methods and noting a potential error in a passage.26th Jul 1920Morton \ M2.3  img005
Hand-drawn block diagram of a non-earthed vehicle electrical system, labelled as the 'Present Standard'.19th Feb 1920Morton \ M2.3  img006
Block diagram illustrating a suggested non-earthed electrical circuit.18th May 1930Morton \ M2.3  img007
Block diagram illustrating a non-earthed vehicle electrical system.18th Mar 1920Morton \ M2.3  img008
Block diagram of a non-earthed electrical system.28th Sep 1921Morton \ M2.3  img009
Block diagram of an earthed or non-earthed electrical system.19th Feb 1920Morton \ M2.3  img010
Analysis of sylphon tubes for thermostat control, detailing liquid composition and performance tests.24th Mar 1920Morton \ M2.3  img011
Updated instructions for the first charge of an accumulator, following a visit from Chloride Electrical Storage Co.10th Mar 1920Morton \ M2.3  img012
Instructions on charging procedures, acid changes, and acid density for celluloid and ebonite accumulators.10th Mar 1920Morton \ M2.3  img013
Page discussing acid density, frothing, and the proportion of acid to plates in celluloid and ebonite batteries.10th Mar 1920Morton \ M2.3  img014
Instructions on battery maintenance, covering the level of acid and procedures for taking a battery out of service.10th Mar 1920Morton \ M2.3  img015
Instructions on handling and first-charging new, unfilled batteries with wet wood separators.10th Mar 1920Morton \ M2.3  img016
The procedure for the first discharge and recharge of a new battery.10th Mar 1920Morton \ M2.3  img017
The sensitivity and testing of Vibrator Voltage & Current Regulators, specifically the Bijur V-Brator model.26th Jul 1920Morton \ M2.3  img018
Continued memorandum discussing the adoption of American-style dynamo regulations and recommending the Smith four-brush system.26th Jul 1920Morton \ M2.3  img019
Meeting with Mr. Joseph Bijur regarding electric starting and dynamo lighting systems for aero and car engines.17th Aug 1920Morton \ M2.3  img020
Merits of Mr. Bijur's 6-volt electrical equipment compared to 12-volt systems.17th Aug 1920Morton \ M2.3  img021
The merits of 6-volt versus 12-volt starter systems and a proposal to inspect a Bijur apparatus.17th Aug 1920Morton \ M2.3  img022
The merits of third brush control versus vibrator control systems for car voltage regulation.17th Aug 1920Morton \ M2.3  img023
Starter motor voltage systems and an arrangement to inspect a Bijur apparatus on a Marmon car.17th Aug 1920Morton \ M2.3  img024
Erratic operation of an experimental 12-volt Bijur dynamo and regulator compared to the reliable 6-volt system.17th Aug 1920Morton \ M2.3  img025
Discussion comparing 12-volt and 6-volt vibrator regulator systems, focusing on dynamo overloading and lead resistance.17th Aug 1920Morton \ M2.3  img026
Specifications of a 6-cylinder Delage car chassis and engine.23th Jul 1920Morton \ M2.4  img001
Engine performance issues such as over-oiling, noise, and vibration during road testing.23th Jul 1920Morton \ M2.4  img002
Report page with engine performance data (RPM vs HP) and an analysis of the S.E.V. electrical equipment.1st Jul 1920Morton \ M2.4  img003
Specifications of the clutch, gearbox, and brakes.23th Jul 1920Morton \ M2.4  img004
Brake system tests, detailing performance issues like springiness and comparing braking effectiveness against a Delage car.1st Jul 1920Morton \ M2.4  img005
Brake performance tests, comparing stopping distances and providing qualitative feedback.1st Jul 1920Morton \ M2.4  img006
Specifications and performance of a car's back axle, steering, chassis, and fuel consumption.23th Jul 1920Morton \ M2.4  img007
General conclusion on a car test, comparing four-wheel braking to rear-wheel braking and noting issues with the petrol feed system.23th Jul 1920Morton \ M2.4  img008
Issues and performance of Rapson tyres compared to Dunlop tyres.16th Dec 1920Morton \ M2.4  img009
Recommending against a component for standard touring cars, suggesting it's better suited for heavier vehicles.6th Dec 1920Morton \ M2.4  img010
The final method for dealing with experimental work and drawing distribution.11th Jun 1917Morton \ M2.4  img011
Memo outlining the process for distributing casting prints and managing part modifications.11th Jun 1917Morton \ M2.4  img012
The inter-departmental process for standardizing parts for production.11th Jun 1917Morton \ M2.4  img013
Instructions regarding the recording of experimental work and the standardization process for parts.16th Oct 1919Morton \ M2.4  img014
Recommendation on fitting shock absorbers, discussing the effect of spring placement on the axle.16th Oct 1919Morton \ M2.4  img015
Serious faults found in an EAC 'V' series car undergoing testing in France.28th Sep 1928Morton \ M2.4  img016


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