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).
Rolls-Royce Experimental Archives                
Choose Archive


Browsing Records        Page 2164 of 2367        Sort by   Box   Date   Description

Filter      from        to             identifier   [all]
DescriptionDateIdentifier
Engine tests with different airscrews to investigate and reduce gear rattle periods.18th Feb 1932Box 179 \ 2  img261
Graph showing the variation in angular deflection versus torque for a Kestrel engine's reduction gear spring coupling.5th Feb 1932Box 179 \ 2  img262
Graph showing the variation of angular deflection for a Kestrel engine's reduction gear spring coupling with increasing torque.5th Feb 1932Box 179 \ 2  img263
Graph showing variation in angular deflection of a reduction gear spring coupling with increasing torque for Kestrel engines.17th Feb 1932Box 179 \ 2  img264
Contents and cost of the chassis tool kit, specifically regarding single-ended spanners.19th Feb 1932Box 179 \ 2  img265
The initial test and performance of the J.3 engine unit, including details on general performance, power, and camshaft settings.19th Feb 1932Box 179 \ 2  img266
Engine test report detailing vibrations, leaks, ignition, and post-run condition.19th Feb 1932Box 179 \ 2  img267
Blueprint graph comparing the B.M.E.P. and valve timing for Japan III and Japan I engine units.14th Feb 1931Box 179 \ 2  img268
Comparing the weight of the J.3 unit to the standard 20/25, noting a reduction of 81 lbs.29th Feb 1932Box 179 \ 2  img269
Visit to Messrs. Lucas to discuss developments in voltage regulators, starter motors, and horns.17th Feb 1932Box 179 \ 2  img270
Clarifying the weight calculation of the 20-GIV chassis compared to the standard 'T' series.2nd Feb 1932Box 179 \ 2  img271
Clarifying weight calculations for a 20-GIV model, correcting for accessories and an oversized petrol tank to determine a final body weight.22th Feb 1932Box 179 \ 2  img272
Providing dimensional figures for Alfa gears following a telephone conversation.22th Feb 1932Box 179 \ 2  img273
Test results and modifications for the Phantom II expanding type carburetter.12th Feb 1932Box 179 \ 2  img274
Carburettor modifications and performance tests, detailing changes to address fuel supply issues.23th Feb 1932Box 179 \ 2  img275
Service complaints about brake drum wear and an evaluation of alternative materials and suppliers.23th Feb 1932Box 179 \ 2  img276
Production of the J.3. chassis and Peregrine car bodies.24th Feb 1932Box 179 \ 2  img277
Predicting the relative severity of 6th order torsional vibration on a Phantom II engine compared to a 60 Vee 6250cc engine.24th Feb 1932Box 179 \ 2  img278
Method to overcome gear rattles on the 25 HP model by adding a small friction damper.1st Feb 1932Box 179 \ 2  img279
Steering problems, specifically joggles and shocks on Phantom II cars, and potential solutions.26th Feb 1932Box 179 \ 2  img280
Proposal to fit a flexible shackle to a car for a 10,000-mile test to improve steering performance.28th Feb 1931Box 179 \ 2  img281
Dissatisfaction with the noise from the J.3 engine unit's gears and the need for a solution.27th Feb 1932Box 179 \ 2  img282
Sluggish motion and lubrication issues in sequence starter motors, comparing different designs.27th Feb 1932Box 179 \ 2  img283
Gear teeth friction, pinion engagement, and potential improvements to motor armature windings.27th Feb 1932Box 179 \ 2  img284
Visit to R.A.E. Farnborough concerning flight tests of carburetters on a 'Vee' (Kestrel 41) engine.27th Feb 1932Box 179 \ 2  img285
Carburettor performance, mixture control modifications, and flight test results.23th Feb 1932Box 179 \ 2  img286
Automatic boost control and take-off power limitations for a supercharged engine.27th Aug 1932Box 179 \ 2  img287
Series of graphs showing engine performance and fuel consumption with new type carburettors under different throttle conditions.29th Feb 1932Box 179 \ 2  img288
Blueprint of a long mechanical component, possibly a connecting rod, with detailed dimensions.29th Feb 1932Box 179 \ 3  img001
Blueprint of a connecting rod with dimensional specifications.29th Feb 1932Box 179 \ 3  img002
Blueprint drawing of a piston with external and cross-section views.29th Feb 1940Box 179 \ 3  img003
Blueprint of an Alfa Romeo piston and piston rings.29th Feb 1940Box 179 \ 3  img004
Specification sheet for Alfa Romeo valve springs.29th Feb 1932Box 179 \ 3  img005
Graph plotting measured valve lift and derived velocity curves against an unspecified x-axis.29th Feb 1932Box 179 \ 3  img006
Graph showing valve lift and acceleration data for inlet and exhaust.29th Feb 1932Box 179 \ 3  img007
Performance graph for an Alfa Romeo 1750 cc engine.29th Feb 1932Box 179 \ 3  img008
Graph of valve lift curves and velocity against degrees of rotation.28th Feb 1929Box 179 \ 3  img009
Blueprint showing the layout of brakes and cam profile for an Alfa Romeo 1750cc.28th Feb 1929Box 179 \ 3  img010
Blueprint diagram of steering for an Alfa Romeo 1750 GS.29th Feb 1932Box 179 \ 3  img011
Blueprint showing designs for a combustion space and camshaft brake for an Alfa Romeo 1750 cc engine.29th Feb 1932Box 179 \ 3  img012
The torsional period and performance issues of the J.3 crankshaft and damper during engine testing.1st Mar 1932Box 179 \ 3  img013
Brief status update on the testing of the Phantom II Synchro Mesh Gearbox.2nd Mar 1932Box 179 \ 3  img014
Comparing the reverse gear trains of an Alfa Romeo with an in-house design and outlining future tests.2nd Mar 1932Box 179 \ 3  img015
Tests to determine the variation of tappet clearance during the warm-up period of the 1st Japan 3 Unit.2nd Mar 1932Box 179 \ 3  img016
Analysis of engine noise related to rocker shafts, oil pump rattle, and crankshaft torsional vibration periods.3rd Apr 1934Box 179 \ 3  img017
Investigations into engine gear noise and flywheel humming issues.2nd Mar 1932Box 179 \ 3  img018
Decision regarding new carburetters, comparing the standard single carburetter against a two-carburetter setup.3rd Mar 1932Box 179 \ 3  img019
Tests and issues with the Phantom II expanding carburetter.3rd Mar 1932Box 179 \ 3  img020
Carburettor testing, focusing on acceleration issues, slow running fuel supply, and choke design.3rd Dec 1932Box 179 \ 3  img021
Modifications to the carburettor's air piston and fuel metering.3rd Mar 1932Box 179 \ 3  img022
Road test report on a Phantom II Synchro Mesh gearbox, noting its quietness and a minor clutch issue.3rd Mar 1932Box 179 \ 3  img023
Correcting a previously sent sketch of an Alfa Romeo reverse gear train and providing further details.3rd Mar 1932Box 179 \ 3  img024
Correcting a previously sent sketch and providing details on the Alfa Romeo reverse gear mechanism.3rd Mar 1932Box 179 \ 3  img025
Blueprint diagram showing the arrangement of gear trains for an Alfa Romeo 1750 C.C.4th Mar 1932Box 179 \ 3  img026
Technical report on the engine of an Alfa-Romeo car.3rd Mar 1932Box 179 \ 3  img027
Technical specifications for the Supercharger, Valve Gear, Gearbox, and Axles.3rd Mar 1932Box 179 \ 3  img028
Specifications for the front axle, brakes, steering, springs, electrical system, and chassis particulars.3rd Mar 1932Box 179 \ 3  img029
Blueprint detailing the design, dimensions and weight of an Alfa-Romeo valve.29th Feb 1932Box 179 \ 3  img030
Investigation into cylinder water jacket pressures on Kestrel 'carb in Vee' engines with evaporative cooling systems.1st Mar 1932Box 179 \ 3  img031
Conclusions and recommendations regarding water circulation modifications on a Hart machine.4th Mar 1932Box 179 \ 3  img032
Test report on a modified header tank and Nimrod condenser on a Kestrel 10S engine.1st Mar 1932Box 179 \ 3  img033
Schematic showing the recommended arrangement of water outlets for an engine.14th Sep 1923Box 179 \ 3  img034
Chart showing cylinder block pressures for standard and modified pipes.18th Mar 1932Box 179 \ 3  img035
Difficulties with the 'Bensport' synchro-mesh gearbox and recommending a change for sports cars.5th Mar 1932Box 179 \ 3  img036
Suitability of different anti-freezing compounds, recommending ethylene or trimethylene glycol over glycerine.5th Mar 1932Box 179 \ 3  img037
Test report on a thermostatically operated radiator shutter for a Hawker Fury aircraft.5th Mar 1932Box 179 \ 3  img038
Test report on the dynamometer and road performance of an 18 HP Lanchester car, focusing on its fluid flywheel.5th Mar 1932Box 179 \ 3  img039
Performance graph showing power at road wheels versus road speed for an 18 HP Lanchester car.1st Mar 1938Box 179 \ 3  img040
Graph of road speed versus engine RPM, showing fluid flywheel slip for an 18 HP Lanchester car at full throttle.1st Mar 1932Box 179 \ 3  img041
Technical memo discussing the issue of 'Frame Jellying' and potential solutions.7th Mar 1932Box 179 \ 3  img042
Performance improvements in a compression ignition engine using Bosch nozzles and injectors.8th Mar 1932Box 179 \ 3  img043
Comparison report on the performance of a Bosch injector versus an in-house design, discussing differential ratios and valve settings.8th Jan 1932Box 179 \ 3  img044
Progress report on 12-cylinder engine development, focusing on performance, new cylinders, and injection timing.6th Mar 1932Box 179 \ 3  img045
Review of the central lubrication scheme, detailing issues with current fittings and plans to test alternatives from Luvax.8th Mar 1932Box 179 \ 3  img046
Gearbox designs for silent operation and easy gear changes.8th Mar 1932Box 179 \ 3  img047
Schematic diagrams of a gearbox or transmission system.9th Mar 1932Box 179 \ 3  img048
Overcoming noisy engine gears and plans to produce them like helical gears for the synchro-mesh box.9th Mar 1932Box 179 \ 3  img049
Cost, functionality, and potential simplification of the J.III and Parching starter motor main and relay switch.1st Mar 1932Box 179 \ 3  img050
Theory and testing of an automatic hold-off feature for the starter motor to prevent re-engagement.1st Mar 1932Box 179 \ 3  img051
Test report on oil leaks and carburation for a 20/25 HP tank engine when inclined forwards and backwards.14th Mar 1932Box 179 \ 3  img052
Fault with the synchro mesh portion of a gearbox after 400 miles of road testing.14th Mar 1932Box 179 \ 3  img053
Cylinder head temperature testing on a Kestrel engine under various cooling conditions.1st Mar 1932Box 179 \ 3  img054
Engine temperature tests comparing evaporatively cooled and water-cooled conditions, detailing component failures like water leaks and cracks.1st Mar 1932Box 179 \ 3  img055
Engine cooling tests comparing water-cooled and evaporatively cooled systems and investigating hot spots.1st Mar 1932Box 179 \ 3  img056
Performance graph of a Kestrel 2S engine, showing cylinder head temperatures and other parameters under evaporatively cooled conditions.1st Mar 1932Box 179 \ 3  img057
Graph of cylinder head temperatures and a full throttle power curve for a Kestrel No. 25 fully supercharged engine.1st Mar 1932Box 179 \ 3  img058
Graphs comparing cylinder temperatures under 'take-off' conditions for different cooling systems and spark plugs.1st Mar 1932Box 179 \ 3  img059
Comparison of Kestrel S engine temperature curves for water-cooled vs. evaporative-cooled systems at rated boost.15th Mar 1932Box 179 \ 3  img060
Outlining necessary modifications and points of attention for the J.J. chassis and engine.15th Mar 1932Box 179 \ 3  img061
Outlining the recommended procedure for developing and testing a new car, including engine, chassis, and steering components.15th Mar 1932Box 179 \ 3  img062
Comparing crankshaft details and torsional periods of the company's engines against those of Alfa Romeo.15th Mar 1932Box 179 \ 3  img063
Comparison table of crankshaft details and balance weights for various engines.1st Aug 1935Box 179 \ 3  img064
Laboratory examination comparing Wakefield's Castrol 'CC' oil with Price's Amber 'A' for use in gear boxes and spiral bevel rear axles.10th Mar 1932Box 179 \ 3  img065
Mileage test results for 'XXL' oil in Experimental Department cars and its potential as an alternative oil.13th Jan 1932Box 179 \ 3  img066
Investigation into the oiling system of a Kestrel engine for a 'Day & Night Fighter' from a cold start.3rd Mar 1932Box 179 \ 3  img067
Engine 'opening up' tests, discussing oil pressure, temperature, and carburettor performance with suggestions for modifications.24th Oct 1933Box 179 \ 3  img068
Proposal to investigate an aircraft engine's oil system, covering the effects of pipe size, oil quantity, and cleaning on system priming and pressure.24th Oct 1935Box 179 \ 3  img069
Graph showing oil temperature, pressure, and water temperature curves for a Kestrel 105 engine.14th Mar 1932Box 179 \ 3  img070
Proposal for a new lightweight electrical aero-engine revolution counter using a small alternator.6th Mar 1932Box 179 \ 3  img071
Practicalities and patentability of a scheme using a Ferranti rectifier instrument for aero engines.16th Mar 1932Box 179 \ 3  img072


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙