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
Comparison of the connecting rod and piston assembly weights between a Pierce Arrow and a Phantom model.1st Jan 1928Box 23 \ 4  Scan013
Weights of Pierce Arrow reciprocating parts, duralumin connecting rods, and strut piston design.2nd Feb 1928Box 23 \ 4  Scan014
Letter from Maurice Olley in Springfield to Mr. Robotham in Derby regarding piston and connecting rod assemblies.25th Jan 1928Box 23 \ 4  Scan015
Viability of Bohnalite steel strut pistons and duralumin connecting rods.21th Feb 1928Box 23 \ 4  Scan016
Weight of piston and connecting rod parts, and the ordering of a set of Pierce-Arrow parts.23th Feb 1928Box 23 \ 4  Scan017
Correspondence from Rolls-Royce of America regarding an order for Pierce-Arrow engine components, detailing specifications and pricing.17th Mar 1928Box 23 \ 4  Scan018
Comparing the bore and crank pin diameter of Pierce Arrow parts to the company's 20 HP model.31th Mar 1928Box 23 \ 4  Scan019
Final report on the comparative cooling performance of the Phantom II against five other cars at Brooklands.25th Mar 1930Box 23 \ 4  Scan020
Comparative analysis of cooling system dimensions and vehicle performance against competitor cars.25th Aug 1930Box 23 \ 4  Scan021
Performance comparison and analysis of 25 HP and 20 HP models, including on-track speed test results.25th Aug 1930Box 23 \ 4  Scan022
Note on performance gains from a 112° camshaft and higher compression.25th Aug 1930Box 23 \ 4  Scan023
Comparative analysis of radiator and engine performance data for various car models.1st Sep 1930Box 23 \ 4  Scan024
Blueprint showing comparative acceleration figures and speedometer calibrations for various cars.1st Sep 1930Box 23 \ 4  Scan025
Comparative analysis table of motor car cooling system specifications and performance data.16th Oct 1928Box 23 \ 4  Scan026
Visits to Gleasons Works and Pierce Arrows in the U.S.A. to observe their manufacturing processes.4th Feb 1932Box 23 \ 4  Scan027
Suspension, braking, and power unit characteristics, with comparisons to other vehicles.4th Feb 1932Box 23 \ 4  Scan028
Page discussing intake silencers and rubber engine mountings, with a sketch of a Pierce-Arrow 'Hot Spot' exhaust system.4th Feb 1932Box 23 \ 4  Scan029
Diagram of a Pierce Arrow engine mounting and notes on their exhaust silencer.4th Feb 1932Box 23 \ 4  Scan030
Observations on a vehicle's steering, tappet adjustment, radiator, and gearbox systems.4th Feb 1932Box 23 \ 4  Scan031
Blueprint diagrams for a 'Pierce' self-adjusting tappet and crankshaft damper.4th Feb 1932Box 23 \ 4  Scan032
Viability of a Renault rotary engine design.15th Jul 1910Box 23 \ 4  Scan033
The performance issues of a Renault car, including ignition knock, carbon buildup, and poor carburation.30th Sep 1910Box 23 \ 4  Scan034
Petrol flow issues at slow speeds causing sooting and poor consumption.30th Sep 1910Box 23 \ 4  Scan035
Critical assessment of a 6-cylinder Renault model, detailing numerous mechanical faults.31th Mar 1911Box 23 \ 4  Scan036
Dangerously low steering lever and the subsequent test work to try and improve it.1st Feb 1911Box 23 \ 4  Scan037
Cylinder and piston clearance measurements for a Renault engine.5th Apr 1911Box 23 \ 4  Scan038
Dynamometer test results for a 6-cylinder Renault 80 x 120 engine.7th Apr 1911Box 23 \ 4  Scan039
Renault 14/20 HP chassis being sent for testing.19th Apr 1911Box 23 \ 4  Scan040
Technical notes on a Renault Car.1st Jun 1911Box 23 \ 4  Scan041
Potential patent royalty issues with Renault and Mercedes.1st Jun 1911Box 23 \ 4  Scan042
Record card detailing the testing and modification of a Renault type clutch.11th May 1911Box 23 \ 4  Scan043
Alterations to an experimental Renault clutch.17th Oct 1911Box 23 \ 4  Scan044
50 HP Renault car, detailing its performance.1st Mar 1924Box 23 \ 4  Scan045
Secret memo discussing lag and sticking issues in an E.A.C. servo system, with proposed solutions and comparisons to Renault and Hispano systems.4th Jul 1924Box 23 \ 4  Scan046
Brake system shortcomings, a proposed ratchet drive improvement, and comparisons with competitor vehicles.28th Apr 1924Box 23 \ 4  Scan047
The design and construction of a 1922 Renault car, comparing it to pre-war models.29th Apr 1924Box 23 \ 4  Scan048
Patentability and technical differences of plate clutch servo systems, comparing Hispano, Renault, and an in-house design.1st Jun 1924Box 23 \ 4  Scan049
Renault acceleration curves and horsepower calculations.21th Mar 1925Box 23 \ 4  Scan050
Car performance, HP curves, and speedometer accuracy from external tests.21th Mar 1925Box 23 \ 4  Scan051
The inaccuracies of road tests published in motor journals due to speedometer reliability.21th Mar 1925Box 23 \ 4  Scan052
The difficulties of vehicle performance testing and analyzing a competitor's improbable acceleration curve.21th Mar 1925Box 23 \ 4  Scan053
Critiquing the accuracy of performance tests on a Renault car published in motoring magazines.21th Mar 1925Box 23 \ 4  Scan054
Analysis of braking curves, critiquing testing methods and comparing deceleration figures.23th Mar 1925Box 23 \ 4  Scan055
Brake efficiency and deceleration at various road speeds, including test data and a performance curve graph.23th Mar 1925Box 23 \ 4  Scan056
Criticizing braking figures and curves published in 'The Motor' magazine.23th Mar 1925Box 23 \ 4  Scan057
Page discussing the interpretation of braking test results and criticizing 'The Motor' tests.23th Mar 1925Box 23 \ 4  Scan058
Graph analysing the acceleration curves and required brake horsepower for a 45 HP Renault.3rd Feb 1925Box 23 \ 4  Scan059
Page with a red 'Print Room' library stamp.21th Mar 1928Box 23 \ 4  Scan060
Road test report on a 45 HP Renault, comparing its performance to a Phantom.6th Dec 1927Box 23 \ 4  Scan061
Road test report on a car's stability, shock absorbers, back axle, speedometer accuracy, and brakes.9th Dec 1927Box 23 \ 4  Scan062
Performance of a Renault car and challenging published figures and lap times at Brooklands.9th Dec 1927Box 23 \ 4  Scan063
Full R.A.C. report on the 15,000 miles Siddeley-Deasy trial, published in 'The Autocar' magazine.22th Jul 1911Box 23 \ 4  Scan064
Trial run of a 45/50 HP Siddeley vehicle.16th Dec 1911Box 23 \ 4  Scan065
Comparative analysis of a Siddeley car's performance against a Rolls-Royce, covering power, gearing, weight, and handling.1st Sep 1928Box 23 \ 4  Scan066
Comparative report on a Siddeley car, focusing on its engine and suspension.19th Aug 1909Box 23 \ 4  Scan067
Perspective section diagram of the Siddeley-Deasy clutch.21th Mar 1914Box 23 \ 4  Scan068
Comparing the performance of an 18 HP Armstrong-Siddeley against a Goshawk, covering handling, speed, hill-climbing, and mechanical systems.19th Apr 1922Box 23 \ 4  Scan069
Confidential report on a visit to Armstrong Siddeley Works to discuss their aero engine technology, specifically oiling systems.26th Feb 1932Box 23 \ 4  Scan070
Engine design and performance, focusing on oil consumption, supercharging, valve cooling, and fuel economy.26th Feb 1932Box 23 \ 4  Scan071
Observations on engine bearings, crankcases, airscrew blades, Imperial Airways machines, and compression ignition engines.26th Feb 1932Box 23 \ 4  Scan072
Direct fuel injection, nitriding cylinders, and gaining engine experience from commercial air services.11th Apr 1932Box 23 \ 4  Scan073
Letter from Armstrong Siddeley Motors Ltd. regarding the rescheduling of a works visit.11th Apr 1932Box 23 \ 4  Scan074
Short typed message confirming an appointment with Mr. Cantrill.12th Apr 1932Box 23 \ 4  Scan075
Purchase and trial of competitor vehicles such as Austro-Daimler, Stutz, Mercedes, Packard, and Lancia-Lambda.17th Oct 1927Box 23 \ 5  Scan001
Recommending the purchase and testing of a Stutz car, comparing it favourably to a Packard-8.24th Oct 1927Box 23 \ 5  Scan002
Request to arrange an extended trial of a Stutz car with a view to purchase.1st Nov 1927Box 23 \ 5  Scan003
Arrangement of a trial run for a Stutz Car.9th Nov 1927Box 23 \ 5  Scan004
Arranging the trial of a Stutz car.10th Nov 1927Box 23 \ 5  Scan005
Arrangement for the trial of a Stutz car at Barkers Showrooms.17th Nov 1927Box 23 \ 5  Scan006
Telegram arranging a test run on a new Stutz car.23th Nov 1927Box 23 \ 5  Scan007
Unsatisfactory new Stutz car and the subsequent acquisition of a demonstration model.24th Nov 1927Box 23 \ 5  Scan008
Letter from Warwick Wright Ltd. to the Experimental Department regarding an instruction book for a Stutz.28th Nov 1927Box 23 \ 5  Scan009
Letter to Mr. Ball at Warwick Wright Ltd. concerning a tappet knock and weak valve adjustment after receiving an instruction book.1st Dec 1927Box 23 \ 5  Scan010
Letter to Warwick Wright Ltd. requesting information on a recurring issue with loose valve gear on a Stutz car.1st Dec 1927Box 23 \ 5  Scan011
20 HP car testing, competitor analysis of a Stutz, and queries on Phantom hydraulics and Chrysler engine mounts.2nd Dec 1927Box 23 \ 5  Scan012
Letter from an automobile distributor discussing overhead valve gear trouble on a Stutz car.3rd Dec 1927Box 23 \ 5  Scan013
Technical specifications for the 'New Safety' Stutz vehicle, including engine, weight, and dimensional data.6th Dec 1927Box 23 \ 5  Scan014
Letter to the Public Control Department requesting the transfer of a Stucz car registration book.10th Dec 1927Box 23 \ 5  Scan015
Blueprint of a flywheel or hub assembly featuring spoke-like structures and lever mechanisms.23th Dec 1927Box 23 \ 5  Scan016
Blank page with a 'Print Received' stamp.23th Dec 1927Box 23 \ 5  Scan017
Blueprint drawing of a connecting rod with dimensions.23th Dec 1927Box 23 \ 5  Scan018
Blueprint of a crankshaft with numbered parts and dimensions.23th Dec 1927Box 23 \ 5  Scan019
Blueprint showing the dimensions of a friction lining, noted as being for a Stutz vehicle.23th Dec 1927Box 23 \ 5  Scan020
Blueprint showing a circular retaining ring with three integrated clamps.23th Dec 1927Box 23 \ 5  Scan021
Blueprint of a multi-throw crankshaft with dimensional annotations.23th Dec 1927Box 23 \ 5  Scan022
Blank or faded page with a Print Room stamp in the bottom right corner.23th Dec 1927Box 23 \ 5  Scan023
The electrical equipment and dynamo for a Stutz car.16th Dec 1927Box 23 \ 5  Scan024
Technical description of a motor, detailing its brushes, commutator, and engagement mechanism.16th Dec 1927Box 23 \ 5  Scan025
Technical report detailing the switch, battery, and ignition system components.16th Dec 1927Box 23 \ 5  Scan026
The condition of the ignition system and a description of the vehicle's lighting.19th Dec 1927Box 23 \ 5  Scan027
Comparing the crankshaft stiffness of a Stutz car to the 40/50 HP and 20 HP models.19th Dec 1927Box 23 \ 5  Scan028
General specification document for the new Safety Stutz Car.20th Dec 1927Box 23 \ 5  Scan029
Engine design and performance issues discovered after a 3000-mile run, with details on the cylinder head.20th Dec 1927Box 23 \ 5  Scan030
Critical analysis of a cylindrical combustion head, valve gear, and spring design, including a blueprint diagram.20th Dec 1927Box 23 \ 5  Scan031
Specifications for valve springs and a detailed description of the camshaft assembly and its operation.20th Dec 1927Box 23 \ 5  Scan032
Description of the cylinder block, crankcase, crankshaft, and pistons.20th Dec 1927Box 23 \ 5  Scan033
Blueprint showing the principal dimensions and specifications for a Stutz crankshaft.16th Dec 1927Box 23 \ 5  Scan034
The reverse side of a document with faint, mirrored text and a purple date stamp.16th Dec 1927Box 23 \ 5  Scan035
Page detailing specifications for gudgeon pins, connecting rods, and camshaft drives, including a blueprint of a Stutz connecting rod.16th Dec 1927Box 23 \ 5  Scan036
Detailed description of the engine's chain drive and lubrication system.16th Dec 1927Box 23 \ 5  Scan037


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