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
Supercharger performance, comparing different engine models, gear ratios, and rotor diameters.15th Dec 1930West Wittering \ V \ December1930-February1931  Scan026
Engine specifications and proposed modifications for 'F' and 'H' type engines, focusing on camshafts and superchargers.16th Dec 1930West Wittering \ V \ December1930-February1931  Scan027
'F' cylinder tests focusing on oil consumption.16th Dec 1930West Wittering \ V \ December1930-February1931  Scan028
Oil consumption tests related to cylinder liner distortion and piston scraper ring configurations.6th Dec 1930West Wittering \ V \ December1930-February1931  Scan029
The endurance testing of a sequence starter main switch and the performance of its copper laminated contact brush.6th Dec 1930West Wittering \ V \ December1930-February1931  Scan030
Report outlining impressions from the Paris Aero Show, focusing on aircraft design, engines, and aerodynamic performance.20th Dec 1930West Wittering \ V \ December1930-February1931  Scan031
Analysis of various aircraft designs and engine performance, page 2.30th Dec 1930West Wittering \ V \ December1930-February1931  Scan032
Analysis of various aircraft, including the Spad 21 and Amiot 140M, with a detailed focus on Lamblin radiators.20th Dec 1930West Wittering \ V \ December1930-February1931  Scan033
Various aircraft radiator and air intake designs.20th Dec 1930West Wittering \ V \ December1930-February1931  Scan034
Carburetter intake, exhaust systems, and oil radiators.20th Dec 1930West Wittering \ V \ December1930-February1931  Scan035
Hispano engine mountings and a detailed analysis of the Bristol 'Mercury' engine.20th Dec 1930West Wittering \ V \ December1930-February1931  Scan036
Lorraine, Isotta, and Hispano aero engines, and a new supercharger design.20th Dec 1930West Wittering \ V \ December1930-February1931  Scan037
New flame damper design and observations from a visit to the Hispano-Suiza factory.20th Dec 1930West Wittering \ V \ December1930-February1931  Scan038
Hispano cylinder construction, detailing their nitriding process, materials, and design features.20th Dec 1930West Wittering \ V \ December1930-February1931  Scan039
Observations on Hispano-Suiza engine design, manufacturing techniques, and car production.20th Dec 1930West Wittering \ V \ December1930-February1931  Scan040
Hispano-Solex carburettor air silencer design and performance, with recommendations for experiments on the Phantom ll.20th Dec 1930West Wittering \ V \ December1930-February1931  Scan041
Visit to the 'Nichromic' works in Asnieres to evaluate their alloy for use in car exhaust manifolds.20th Dec 1930West Wittering \ V \ December1930-February1931  Scan042
Sketches of air intakes on French aircraft from the 1930 Paris Show.1st Dec 1930West Wittering \ V \ December1930-February1931  Scan043
Blank page with a print room date stamp.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan044
Performance data and engine particulars for a Dewoitine D.27 aircraft with a Hispano-Suiza engine.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan045
Page showing three photographs of the French Dewoitine D.27 aircraft.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan046
Specifications for the Nieuport-Delage Type 82 C-1 aircraft.1st Dec 1930West Wittering \ V \ December1930-February1931  Scan047
Schematic of a hot air intake system for a Breguet long-distance aeroplane.1st Dec 1930West Wittering \ V \ December1930-February1931  Scan048
Blank page with a Print Room stamp.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan049
Design drawing for an ejector type exhaust manifold and flame damper.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan050
Blank document page with a purple ink stamp in the bottom right corner.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan051
Diagrams of a Lamblin radiator and a partly concealed honeycomb radiator on a Breguet 27A2 aeroplane.1st Dec 1930West Wittering \ V \ December1930-February1931  Scan052
Blueprint detailing the liner construction for a Hispano-Suiza aero engine.1st Dec 1920West Wittering \ V \ December1930-February1931  Scan053
Design for reinforcing bridge pieces on a Hispano-Suiza car engine cylinder block.1st Dec 1930West Wittering \ V \ December1930-February1931  Scan054
Blueprint of the latest Lorraine cylinder construction design.1st Dec 1930West Wittering \ V \ December1930-February1931  Scan055
Blueprint of a 'Birmann' impeller for high-speed superchargers.1st Dec 1930West Wittering \ V \ December1930-February1931  Scan056
Graph showing the change in mean effective pressure as a function of the adiabatic efficiency of a supercharger.25th Oct 1930West Wittering \ V \ December1930-February1931  Scan057
Graph showing horsepower absorption versus adiabatic efficiency for a geared supercharger on an 1800 cubic inch engine.13th Nov 1930West Wittering \ V \ December1930-February1931  Scan058
Blueprint of a flame trap (antiflamme) for a Hispano 500 C.V. engine.13th Nov 1930West Wittering \ V \ December1930-February1931  Scan059
Blueprint for an A.D.P.V. flame arrestor, type Jupiter 420 C.V.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan060
The reverse of a document showing a purple ink stamp from the Print Room in Derby.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan061
The properties of a nickel-chromium alloy named Nichromic.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan062
The oxidation and acid resistance properties of NICHROMIC alloy.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan063
Appliances used for the thermal treatment of metals.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan064
The benefits of using NICHROMIC appliances for melting metals or salts.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan065
Informational sheet on the properties and application of the NICHROMIC patented alloy in casting.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan066
Notes explaining the advantages of a hyperboloid impeller as a centrifugal supercharger.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan067
Supercharger impeller design, materials, and performance in American aircraft engines.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan068
The problems and considerations of high-speed impeller design for superchargers.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan069
Analysis of the mechanical design and efficiency shortcomings of low and high-speed impellers, limiting supercharging development.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan070
Page discussing a new type of impeller design for high-speed requirements.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan071
Compression ignition engine test, detailing run-in time and future work on rotational swirl.23th Dec 1930West Wittering \ V \ December1930-February1931  Scan072
'F' cylinder tests investigating oil consumption with scraper rings positioned at the top of the piston skirt.1st Jan 1931West Wittering \ V \ December1930-February1931  Scan073
Complaints from the U.S. market for 25 HP & Phantom II cars, focusing on service costs, overheating radiators, and coil failures.2nd Jan 1931West Wittering \ V \ December1930-February1931  Scan074
Customer feedback and criticisms of the 25-EX model, comparing it to the Phantom I and discussing luggage and dynamo issues.2nd Jan 1931West Wittering \ V \ December1930-February1931  Scan075
Sourcing American Delco generators and investigating their thermostat control technology for a 25 HP car.9th Sep 1930West Wittering \ V \ December1930-February1931  Scan076
Letter from a law firm discussing US customs and revenue law for importing automobile parts.9th Sep 1930West Wittering \ V \ December1930-February1931  Scan077
Letter discussing the classification and import duty for nuts, bolts, and washers.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan078
Technical memo detailing tests and issues with an aero engine boost regulator.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan079
Operating piston guide sleeve seizure due to dust/grit and the need to reduce friction in the apparatus.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan080
Performance of a P.2 dynamo output and two-rate charge scheme.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan081
Dynamo output limitations and proposed modifications for improved charging performance.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan082
Dynamo output limitations and potential solutions including modified armatures and automatic control systems.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan083
Investigations into hydraulic damper knocks, comparing horizontal and vertical types for future design.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan084
Analysis of damper efficiency, air vent restriction, and front axle control systems for 20 HP and Phantom II models.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan085
Analysis of damper performance, steering characteristics, material considerations for casings, and a summary of findings.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan086
Damper indicator diagrams, customer complaints about hydraulic dampers, and future development plans.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan087
Comparative chart of 30 indicator diagrams for a 20 HP Rear component under various test conditions.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan088
Blank document with a 'Print Room' stamp from the Derby factory.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan089
Sheet 2 of performance graphs for P.II. Front Dampers under various test conditions.5th Jan 1931West Wittering \ V \ December1930-February1931  Scan090
The reverse side of a document, blank except for a purple ink stamp.5th Jan 1931West Wittering \ V \ December1930-February1931  Scan091
Test report sheet for a 20 HP rear damper lever, including indicator diagrams and a schematic.3rd Dec 1930West Wittering \ V \ December1930-February1931  Scan092
Received and stamped by the Print Room.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan093
Performance graphs for S.S. and Phantom II rear dampers under various test conditions.3rd Jan 1931West Wittering \ V \ December1930-February1931  Scan094
Series of performance graphs for S.S. Rear Dampers under different test conditions.15th Jan 1931West Wittering \ V \ December1930-February1931  Scan095
Heavily faded document, likely a carbon copy, with a purple ink stamp in the bottom right corner.15th Jan 1931West Wittering \ V \ December1930-February1931  Scan096
Visit to the Cadillac Motor Co. factory, detailing facilities and engine specifications.5th Jan 1931West Wittering \ V \ December1930-February1931  Scan097
Observations on engine mounting, gear ratios, weight reduction, and component design.5th Jan 1931West Wittering \ V \ December1930-February1931  Scan098
Observations on cost-saving measures, production methods, and engineering mistakes in U.S. motor factories.5th Jan 1931West Wittering \ V \ December1930-February1931  Scan099
Competitor analysis on shock absorbers, steering, and suspension systems from American manufacturers.6th Jan 1931West Wittering \ V \ December1930-February1931  Scan100
Technical memorandum discussing cold weather starting and idling issues in supercharged engines, specifically concerning petrol accumulation and potential solutions.6th Jan 1931West Wittering \ V \ December1930-February1931  Scan101
Schematic for a slow running carburettor on an induction pipe.6th Jan 1931West Wittering \ V \ December1930-February1931  Scan102
Installation tests and modifications report for a production Hawker Hart header tank.7th Jan 1931West Wittering \ V \ December1930-February1931  Scan103
Modifications made to a tank to prevent water surging and spilling.7th Jan 1931West Wittering \ V \ December1930-February1931  Scan104
Tests conducted on tank vent positioning and design for 'Fury' and 'Hart' aircraft tanks.7th Jan 1931West Wittering \ V \ December1930-February1931  Scan105
Water 'building up' in cylinder jackets due to steam formation and proposed modifications.18th Dec 1930West Wittering \ V \ December1930-February1931  Scan106
Installation tests and modifications to a Hawker Hart header tank to prevent water loss under severe conditions.18th Dec 1930West Wittering \ V \ December1930-February1931  Scan107
Stamped page from the Print Room.7th Jan 1931West Wittering \ V \ December1930-February1931  Scan108
Comparison of Hart and Fury header tank shapes and their effect on water flow and turbulence.5th Jan 1931West Wittering \ V \ December1930-February1931  Scan109
Graph showing the quantity of water displaced by steam formation in the cylinder blocks during engine tests.9th Jan 1931West Wittering \ V \ December1930-February1931  Scan110
Largely illegible or blank document with a 'Print Room' date stamp in the bottom right corner.8th Jan 1931West Wittering \ V \ December1930-February1931  Scan111
Twin-cylinder shock absorber produced by the Delco Co. and its use on the Cadillac.6th Jan 1931West Wittering \ V \ December1930-February1931  Scan112
Flywheel vibrations on the 40/50 engine.7th Jan 1931West Wittering \ V \ December1930-February1931  Scan113
Comparative study of three spray patterns labelled 2050, 2500, and 2950.7th Jan 1931West Wittering \ V \ December1930-February1931  Scan114
Diagram illustrating the bending moment on a 1st motion shaft caused by flywheel tilt for a 25 HP engine.7th Jan 1931West Wittering \ V \ December1930-February1931  Scan115
Blank document with a 'PRINT ROOM, DERBY' stamp.7th Jan 1931West Wittering \ V \ December1930-February1931  Scan116
Photographic study of a phenomenon at different rotational speeds.7th Jan 1931West Wittering \ V \ December1930-February1931  Scan117
Photographic record of five samples showing the progressive distortion of a circular pattern at different numerical stages.24th Dec 1929West Wittering \ V \ December1930-February1931  Scan118
Diagram showing an optical measurement setup for flywheel vibrations.24th Dec 1929West Wittering \ V \ December1930-February1931  Scan119
Proposal to apply a simplified, electrically direct starter scheme to the 20/25 chassis, referencing previous notes.8th Jan 1931West Wittering \ V \ December1930-February1931  Scan120
Investigation into various interior heating systems for cars used in the U.S.A., with a focus on a Packard system.8th Jan 1931West Wittering \ V \ December1930-February1931  Scan121
Experiments to test and measure battery box vibrations on a Phantom II chassis.8th Jan 1931West Wittering \ V \ December1930-February1931  Scan122
Blueprint diagram showing the setup for measuring battery vibrations.8th Jan 1931West Wittering \ V \ December1930-February1931  Scan123
Reverse side of a document showing a Print Room stamp.8th Jan 1931West Wittering \ V \ December1930-February1931  Scan124
Study showing the movement of a cantilever battery box support at various drum speeds.8th Jan 1931West Wittering \ V \ December1930-February1931  Scan125
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