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
Issues with non-standard tyres, inconsistent tappet oiling, and high oil temperatures.9th Apr 1934Box 11 \ 5  05-page025
Acceleration test figures for vehicle 28-EX, including 3rd speed data and test conditions.13th Apr 1934Box 11 \ 5  05-page026
Diagnosing a petrol supply failure by monitoring under-bonnet and atmospheric temperatures.13th Apr 1934Box 11 \ 5  05-page027
5,000-mile report on vehicle 28-EX.14th Apr 1934Box 11 \ 5  05-page028
8000-mile report on Engine Unit PH.11. NO.28, detailing performance issues and findings after dismantling.10th Apr 1934Box 11 \ 5  05-page029
The performance and issues of various engine and drivetrain components.10th Apr 1934Box 11 \ 5  05-page030
Observations and modifications on various components including the carburetter, petrol tank, pedals, radiator, and camshaft.10th Apr 1934Box 11 \ 5  05-page031
The performance and issues of various vehicle components including an engine coupling, propeller shaft, hydraulic dampers, and steering column.10th Apr 1934Box 11 \ 5  05-page032
The condition and performance of various vehicle components, including pivots, brakes, axle, and electrical systems.10th Apr 1934Box 11 \ 5  05-page033
Faults with the starter motor, bodywork, and noting vehicle specifications and tyre wear.14th Apr 1934Box 11 \ 5  05-page034
Letter to J. Bowering regarding the treatment of parts with Alum. Hydroxide and the petrol system of a Streamlined Car.14th Apr 1934Box 11 \ 5  05-page035
Requesting clarification on the new features being tested on experimental car 28-EX.9th Apr 1934Box 11 \ 5  05-page036
Specific parts fitted to model 28-EX, including modifications to the valve stems and water pump.14th Apr 1934Box 11 \ 5  05-page037
Letter to G.W. Hancock regarding the fouling of universal joints and a proposed spring modification.14th Apr 1934Box 11 \ 5  05-page038
The investigation and attempted improvements for noisy silent tappets.14th Apr 1934Box 11 \ 5  05-page039
Letter on hotel stationery proposing a modification to a petrol pump and filter unit to improve petrol feed.14th Apr 1934Box 11 \ 5  05-page040
Hand-drawn sketch of a filter mechanism with annotations on hotel letterhead.15th Apr 1934Box 11 \ 5  05-page041
Report comparing the 28-EX car with the 25-EX, detailing performance issues and modifications to the gearbox and tappets.15th Apr 1934Box 11 \ 5  05-page042
Technical memo reporting on the standardisation of parts for the 28-EX model after testing.14th Apr 1934Box 11 \ 5  05-page043
Issues with valve springs, petrol, and a list of ongoing maintenance tasks on a vehicle.17th Apr 1934Box 11 \ 5  05-page044
Note from Hancock detailing failures with a silencer mounting, requiring stronger springs and a redesigned bracket.17th Apr 1934Box 11 \ 5  05-page045
To G.W. Hancock in France discussing component standardisation, testing, and responsibility for issues.17th Apr 1934Box 11 \ 5  05-page046
Issues with electrical petrol pumps and the need for on-road testing to resolve them.17th Apr 1934Box 11 \ 5  05-page047
Letter to G.W. Hancock regarding tests on a 22-EX rear universal joint complaint.17th Apr 1934Box 11 \ 5  05-page048
Telegraph reporting the failure of three conrod oil pipes and that replacements have been sent for from Paris.10th Apr 1924Box 11 \ 5  05-page049
5000-mile report on engine unit PH.II. NO.28, detailing performance issues and component failures.10th Apr 1934Box 11 \ 5  05-page050
Performance issues and observations on various vehicle components including tappets, clutch, servo, gearbox, and carburettor.10th Apr 1934Box 11 \ 5  05-page051
Modifications and performance of various engine and chassis components.10th Apr 1934Box 11 \ 5  05-page052
The performance and issues of a fabric coupling, universal joint, hydraulic dampers, and steering column.10th Apr 1934Box 11 \ 5  05-page053
The performance of steering, brakes, rear axle, and electrical systems.10th Apr 1934Box 11 \ 5  05-page054
Faults with the starter motor, electrics, and bodywork, along with vehicle specifications.12th Apr 1934Box 11 \ 5  05-page055
Letter addressing multiple vehicle issues including engine disintegration, tyre delivery, and oil leaks.12th Apr 1934Box 11 \ 5  05-page056
Letter from Chateauroux requesting to return to the Derby works after a 10,000 mile test.15th Apr 1934Box 11 \ 5  05-page057
Correcting a previously stated temperature location from scuttle to under bonnet.15th Apr 1934Box 11 \ 5  05-page058
Car repairs, detailing issues with auto adjustment plungers and problematic petrol pumps.16th Apr 1934Box 11 \ 5  05-page059
Requesting the urgent despatch of brake parts for a chassis undergoing a 10,000-mile trial in France.16th Apr 1934Box 11 \ 5  05-page060
Steering alterations and an investigation into high oil temperatures, including test data.17th Apr 1934Box 11 \ 5  05-page061
Engine temperature readings with notes on auto tappets, piston friction, and cylinder lubrication.17th Apr 1934Box 11 \ 5  05-page062
Drawing of the front and rear ends of a side steering tube with dimensions.17th Apr 1934Box 11 \ 5  05-page063
Graph comparing various engine temperature readings with radiator shutters operating normally versus held open.17th Apr 1934Box 11 \ 5  05-page064
Results of tests concerning high oil temperatures.18th Apr 1934Box 11 \ 5  05-page065
Letter discussing that the Harrison matrix is over-cooled based on temperature figures, and a query about steering friction.19th Apr 1934Box 11 \ 5  05-page066
Reporting the results of a road test concerning lengthened spring pads.19th Apr 1934Box 11 \ 5  05-page067
Report from France on road tests covering braking, clutch, exhaust, and fuel supply issues.19th Apr 1934Box 11 \ 5  05-page068
Petrol pump positioning and vapourisation, comparing Bentley and Phantom models with competitors.20th Apr 1934Box 11 \ 5  05-page069
Proposing a list of items for the T.2 series, and discussing production hold-ups for the fan and exhaust system.20th Apr 1934Box 11 \ 5  05-page070
Development issues including the petrol tank, luggage grid, and various component failures.20th Apr 1934Box 11 \ 5  05-page071
Letter on hotel stationery discussing problems with a car's petrol system.20th Apr 1934Box 11 \ 5  05-page072
Letter detailing attempts to resolve a petrol vaporising issue in a vehicle.21th Apr 1934Box 11 \ 5  05-page073
From G.W.H. to Hs. detailing a delay in completing the ten-thousand-mile test for car 28-EX due to required alterations.21th Apr 1934Box 11 \ 5  05-page074
From G.W.H. discussing radiator performance, steering adjustments, and test car decisions.21th Apr 1934Box 11 \ 5  05-page075
Test results and modifications for the Ph.II Rear Universal Joint.21th Apr 1934Box 11 \ 5  05-page076
Tests on a propeller shaft with an accompanying blueprint sketch.18th Apr 1934Box 11 \ 5  05-page077
Data table showing the results of propeller shaft tests conducted while driving over a humped-back bridge.18th Apr 1934Box 11 \ 5  05-page078
Road tests investigating propeller shaft coupling fouling issues.23th Apr 1934Box 11 \ 5  05-page079
Typed memo from G.W.H. in France requesting money to pay a hotel bill and send men home.23th Apr 1934Box 11 \ 5  05-page080
Sketch illustrating the fouling positions of a knuckle joint.23th Apr 1934Box 11 \ 5  05-page081
Temperature test results for a 28-EX model with bonnet and front flaps closed, with temperatures measured in degrees centigrade.23th Apr 1934Box 11 \ 5  05-page082
Temperature readings recorded at one-mile intervals with the bonnet closed and front flaps open.23th Apr 1934Box 11 \ 5  05-page083
Temperature readings in Centigrade taken at one-mile intervals with the rear of the bonnet wedged open.23th Apr 1939Box 11 \ 5  05-page084
Graph comparing engine temperature tests with radiator shutters working versus held open.23th Apr 1939Box 11 \ 5  05-page085
Technical issues and plans for a Bentley car, covering brake adjustments, the fan, luggage grid, and petrol pumps.30th Mar 1934Box 11 \ 5  05-page086
Diagnosing and attempting to repair fuel pump failures on a vehicle.30th Mar 1934Box 11 \ 5  05-page087
Pencil sketch of two views of a mechanical joint with handwritten annotations.30th Mar 1934Box 11 \ 5  05-page088
Schematic drawing illustrating chassis angles at the front and rear.23th Apr 1934Box 11 \ 5  05-page089
Bonnet ventilation and temperature tests following a 10,000-mile run, with recommendations for radiator matrix design.23th Apr 1934Box 11 \ 5  05-page090
Chassis 36-BX at 10,000 miles, detailing engine performance and acceleration figures.23th Apr 1934Box 11 \ 5  05-page091
Inspection report detailing the condition of a wheelcase, ignition plugs, petrol tank, engine coupling, and universal joints.23th Apr 1934Box 11 \ 5  05-page092
10,000-mile report on chassis 26-EX, detailing engine performance and acceleration data.23th Apr 1934Box 11 \ 5  05-page093
Inspection report on the condition of engine components including connecting rods, pistons, cylinders, and valves.23th Apr 1934Box 11 \ 5  05-page094
Technical report on the status of various vehicle components including the clutch, servo motor, gearbox, and carburettor.23th Apr 1934Box 11 \ 5  05-page095
The performance and modifications of various vehicle components including dampers, radiator, and exhaust.23th Apr 1934Box 11 \ 5  05-page096
The condition of a wheelcase, ignition plugs, petrol tank, engine coupling, and universal joints.23th Apr 1934Box 11 \ 5  05-page097
Technical report on the performance of hydraulic dampers, steering, and the rear axle.11th Dec 1925Box 11 \ 5  05-page098
The performance and wear of steering tubes, buffer clearances, and brakes over a mileage test.11th Dec 1925Box 11 \ 5  05-page099
The condition of various electrical system components after a mileage test.11th Dec 1925Box 11 \ 5  05-page100
Faults with the headlamps, windscreen wiper motor, bodywork, and rear number plate illuminated unit.11th Dec 1925Box 11 \ 5  05-page101
Vehicle test report detailing faults, performance metrics, and tyre wear.18th Apr 1934Box 11 \ 5  05-page102
From G.W.H. regarding the exchange of cars, credit, and mileage while in France.18th Apr 1934Box 11 \ 5  05-page103
Requesting a list of items not yet cleared for production for car 28-EX, following a 5,000-mile running report.19th Apr 1934Box 11 \ 5  05-page104
Listing the serial numbers for six Dunlop tyre covers received.27th Apr 1934Box 11 \ 5  05-page105
Log of vehicle component measurements and adjustments at various mileage intervals.30th Mar 1934Box 11 \ 5  05-page106
Log tracking daily and cumulative petrol and oil consumption.28th Mar 1934Box 11 \ 5  05-page107
Graph plotting oil, water, and air temperatures against mileage during a 10,000-mile road test in France.20th Apr 1934Box 11 \ 5  05-page108
Graphical log from a 10,000-mile road test in France, tracking temperatures, speed, and fuel consumption.13th Apr 1934Box 11 \ 5  05-page109
Performance graph tracking oil, water, and air temperatures during a 10,000-mile test in France.6th Apr 1934Box 11 \ 5  05-page110
Performance graph tracking temperature and mileage during a 10,000-mile test in France.3rd Apr 1934Box 11 \ 5  05-page111
Performance graph logging data from the 10,000-mile test of the 28EX vehicle in France.28th Mar 1934Box 11 \ 5  05-page112
Measurements log for pivot lean and pivot load.30th Mar 1934Box 11 \ 5  05-page113
10,000-mile report on car 28-EX, detailing the performance of engine unit P.II. No.28 and its acceleration figures.23th Apr 1934Box 11 \ 5  05-page114
Inspection report detailing the condition of engine components including connecting rods, pistons, cylinders, and valves.23th Apr 1934Box 11 \ 5  05-page115
Leaking soldered joint caused by a fouled coupling, with plans to fit longer plates.23th Apr 1934Box 11 \ 5  05-page116
The performance and condition of the clutch, servo motor, gearbox, carburettor, and air silencer.23th Apr 1934Box 11 \ 5  05-page117
The performance of various components including hydraulic dampers, pedals, radiator, exhaust manifold, carburettor, and camshaft.23th Apr 1934Box 11 \ 5  05-page118
The condition and testing of various vehicle components including the wheelcase, ignition plugs, petrol tank, and universal joints.23th Apr 1934Box 11 \ 5  05-page119
The performance of hydraulic dampers, steering column, and rear axle.23th Apr 1934Box 11 \ 5  05-page120
The performance and necessary modifications for the exhaust system, brake equaliser shafts, and road springs.11th Dec 1932Box 11 \ 5  05-page121
Performance and wear of steering, buffer, and braking systems over a mileage test.11th Dec 1932Box 11 \ 5  05-page122
Condition report on the vehicle's electrical system components after a mileage test.11th Dec 1932Box 11 \ 5  05-page123
Faults with the headlamps, windscreen wiper, bodywork, and rear number plate illuminated unit.11th Dec 1932Box 11 \ 5  05-page124


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