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                
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DescriptionDateIdentifier
Experimental test report on the air silencer and distribution for a 25/30 HP engine.7th Jan 1937Box 155 \ 2  scan0028
Report concluding that a new system is significantly noisier and showed a 2% economy gain in bench tests, requiring further road tests.7th Jan 1937Box 155 \ 2  scan0029
Graph showing results from Test No. 4, plotting air/fuel ratio distribution for a standard open carburetter across different cylinder pairs.7th Jan 1937Box 155 \ 2  scan0030
Performance graph showing air/fuel ratio versus RPM for an air silencer under full and part load conditions.7th Jan 1937Box 155 \ 2  scan0031
Graph of Test No. 2 results for a Rocker Cover Air Silencer, showing Air/Fuel ratio vs R.P.M. for various cylinders at full and part throttle.7th Jan 1937Box 155 \ 2  scan0032
Graph comparing air/fuel ratios across different cylinders under full and part throttle conditions.12th Jan 1937Box 155 \ 2  scan0033
Programme of work for various engine test beds, detailing specific tasks and component assemblies.12th Jan 1937Box 155 \ 2  scan0034
Engine testing and modification report for a 25/30 BED model, detailing bearing replacement, endurance tests, and further cooling system trials.12th Jan 1937Box 155 \ 2  scan0035
Programme of test bed work for engine units from the Phantom III, Bentley, and Wraith models.18th Jan 1937Box 155 \ 2  scan0036
Engine test results and required modifications for multiple units.18th Jan 1937Box 155 \ 2  scan0037
Programme of test bed work for Phantom III, Bentley, and Wraith engine units.18th Jan 1937Box 155 \ 2  scan0038
Technical notes on engine testing, modifications, and troubleshooting for units W.1, O.H.C. No. 23, and C.15.18th Jan 1937Box 155 \ 2  scan0039
Rm/Swdl to HPS requesting a promise on a list of urgent jobs for various models.20th Jan 1937Box 155 \ 2  scan0040
Progress of urgent designed jobs for Bentley and Phantom III models.22th Jan 1937Box 155 \ 2  scan0041
The start of work on a new Test House and ensuring all necessary equipment is on order.28th Jan 1937Box 155 \ 2  scan0042
Programme of test bed work for the Phantom III, covering Continental Unit tests and a sump overfilling complaint.29th Jan 1937Box 155 \ 2  scan0043
Technical memorandum detailing engine testing, modifications, and issues for various car models.29th Jan 1937Box 155 \ 2  scan0044
Instructions for testing and comparing cylinder blocks and an external Packard damper.29th Jan 1937Box 155 \ 2  scan0045
Programme of test bed work for the Phantom III, including exhaust system comparisons and an investigation into oil overfilling.29th Jan 1937Box 155 \ 2  scan0046
Engine testing, modifications, and issues for Bentley, Wraith, and Phantom III models.29th Jan 1937Box 155 \ 2  scan0047
Work on units C.14 and C.15, involving parts comparison and endurance testing.29th Jan 1937Box 155 \ 2  scan0048
Programme of test bed work for Phantom III engines, detailing experiments and modifications.9th Feb 1937Box 155 \ 2  scan0049
Test procedures and investigations for various Bentley engine units, covering oil consumption, crank replacement, valve springs, and water leaks.9th Feb 1937Box 155 \ 2  scan0050
Test instructions and notes for various engine units, including a Bentley Unit.18th Feb 1937Box 155 \ 2  scan0051
Programme of test bed work for the O.H.C. Bentley Unit No. 23 and the Wraith No. 2.18th Feb 1937Box 155 \ 2  scan0052
Engine testing procedures for oil pressure, gears, bearings, and valve bounce.18th Feb 1937Box 155 \ 2  scan0053
Test procedures and observations for engine components, focusing on tappets, springs, and oil consumption.18th Feb 1937Box 155 \ 2  scan0054
Programme of test bed work for Wraith, Bentley, and other experimental engine units.27th Feb 1937Box 155 \ 2  scan0055
List of special parts and testing procedures for a Phantom III engine unit, numbered No.3.27th Feb 1937Box 155 \ 2  scan0056
Tappet clearance settings and comparative oil consumption test procedures for the Phantom No.6 unit.27th Feb 1937Box 155 \ 2  scan0057
Programme of test bed work for Wraith and Bentley engine units, detailing modifications and test procedures.27th Feb 1937Box 155 \ 2  scan0058
List of engine components and test specifications for a Phantom III unit.27th Feb 1937Box 155 \ 2  scan0059
Engine testing instructions for a Phantom No. 6 unit, focusing on tappet clearances and comparative oil consumption tests.27th Feb 1937Box 155 \ 2  scan0060
Programme of test bed work for the Wraith No.2, O.H.C. No. 23, and B-18 units.9th Mar 1937Box 155 \ 2  scan0061
Engine component endurance and performance testing procedures.27th Feb 1937Box 155 \ 2  scan0062
Requesting summary reports and details on tests carried out on engine test beds.16th Mar 1937Box 155 \ 2  scan0063
Programme of test bed work for O.H.C. No. 23 and B.18 units, including endurance, noise, and performance tests.16th Mar 1937Box 155 \ 2  scan0064
Ignition advance test procedures for an engine on test bed No. 5.16th Mar 1937Box 155 \ 2  scan0065
Summary report on fitting a unit with a modified crankshaft, specific bearings, and completing an endurance test.16th Mar 1937Box 155 \ 2  scan0066
Programme of test bed work for O.H.C. B.23 and B.17 units, detailing investigations on exhaust systems and oil pumps.23th Mar 1937Box 155 \ 2  scan0067
Engine testing procedures, including endurance tests, component analysis, and specific instructions for various units.23th Mar 1937Box 155 \ 2  scan0068
Outlining the status and requirements for endurance and consumption tests on units B.19 and B.9.23th Mar 1937Box 155 \ 2  scan0069
Programme of test bed work for O.H.C. unit B.23 outlining investigations, and noting unit B.24 is next for testing.2nd Apr 1937Box 155 \ 2  scan0070
Engine testing procedures and instructions for various units and components.2nd Apr 1937Box 155 \ 2  scan0071
List of new parts fitted to an engine and the subsequent testing programme.2nd Apr 1937Box 155 \ 2  scan0072
Programme of test bed work for various engine units and their components.9th Apr 1937Box 155 \ 2  scan0073
Required engine component tests, power curves, and preparations for various engine units.9th Apr 1937Box 155 \ 2  scan0074
Programme of test bed work for the Ph.III No.10 Unit, detailing preparatory tests before being fitted into car 33.EX.19th Apr 1937Box 155 \ 2  scan0075
Testing plans and specifications for various engine units and components.19th Apr 1937Box 155 \ 2  scan0076
Assembly instructions for unit B.20 to replace an O.H.C. unit, and a list of related running reports.19th Apr 1937Box 155 \ 2  scan0077
Test bed work programme for a Phantom III No.16 Unit, detailing non-standard parts and test procedures.28th Apr 1937Box 155 \ 2  scan0078
List of checks and modifications for engine valve gear lubrication and oil consumption.19th Apr 1937Box 155 \ 2  scan0079
Summary of endurance tests and instructions for engine units B.17, B.18, B.19, B.20, and Phantom III.19th Apr 1937Box 155 \ 2  scan0080
Test bed programme for a Phantom III No. 16 Unit, detailing special non-standard parts and planned work.28th Apr 1937Box 155 \ 2  scan0081
List of checks and modifications for engine valve gear lubrication and performance.19th Apr 1937Box 155 \ 2  scan0082
Progress and instruction report on endurance testing for various engine units.19th Apr 1937Box 155 \ 2  scan0083
Urgent internal request for the manufacture of 24 distributor governor springs using a different wire gauge.10th May 1937Box 155 \ 2  scan0084
Programme of test bed work for an engine unit with special non-standard parts, prior to a 15,000 miles test.10th May 1937Box 155 \ 2  scan0085
Required tests and modifications for various engine units.10th May 1937Box 155 \ 2  scan0086
Programme of test bed work for Ph.III. No.10 Unit, detailing new parts and test procedures.19th Apr 1937Box 155 \ 2  scan0087
The status and testing specifications for various engine units and components.19th Apr 1937Box 155 \ 2  scan0088
Details on the assembly of a B.20 unit to replace an O.H.C. unit, and a list of running reports for other units.19th Apr 1937Box 155 \ 2  scan0089
The programme of test bed work for various engine units and components.22th May 1937Box 155 \ 2  scan0090
Endurance test specifications for engine units B.19, B.24, and B.18, detailing new parts and testing parameters.22th May 1937Box 155 \ 2  scan0091
Programme of work outlining various engine test bed procedures and requirements.22th May 1937Box 155 \ 2  scan0092
Endurance test procedures and specifications for various engine units.6th Jun 1937Box 155 \ 2  scan0093
Requesting performance comparisons on a test bed are made with the standard silencer and chassis layout.6th Jun 1937Box 155 \ 2  scan0094
Programme of test bed work for the Wraith III No.1 Unit, detailing investigations into engine components and performance.8th Jun 1937Box 155 \ 2  scan0095
Instructions for endurance checks and component testing on various engine units, including a Phantom III.8th Jun 1937Box 155 \ 2  scan0096
Programme of test bed work for the Wraith III No.1 Unit, investigating noise, performance, and lubrication.8th Jun 1937Box 155 \ 2  scan0097
Instructions for endurance tests and checks on various engine components, including a Phantom III unit.8th Jun 1937Box 155 \ 2  scan0098
Programme of test bed work for a Wraith III No.1 Unit, detailing various endurance and performance trials.15th Jun 1937Box 155 \ 2  scan0099
Continued testing instructions for B.24, Phantom No.3 Unit, and B.9, involving part fitting and performance tests.15th Jun 1937Box 155 \ 2  scan0100
Power and detonation tests on a single cylinder unit, examining compression ratio, timing, and valve head design.15th Jun 1937Box 155 \ 2  scan0101
Request to expedite job Ex.28029 for a torsional indicator to compare various crankshaft dampers.18th Jun 1937Box 155 \ 2  scan0102
Programme of test bed work for Wraith No.1 and No.2 units, detailing tappet noise investigation and new parts for a 15,000-mile test.24th Jun 1937Box 155 \ 2  scan0103
List of engine tests to be included, covering running-in, performance, and component checks for specific units.24th Jun 1937Box 155 \ 2  scan0104
List of required engine tests, modifications, and component checks for various units.24th Jun 1937Box 155 \ 2  scan0105
Page detailing tests including freezing a Bentley cylinder block and comparative power and detonation tests on a single-cylinder unit.30th Jun 1937Box 155 \ 2  scan0106
Request to refit a battery conduit wire on a Phantom III test bed due to shorting and fire risk.30th Jun 1937Box 155 \ 2  scan0107
Programme of test bed work for a Wraith No.2 unit, detailing tests on gears, damper loadings, and oil heat flow.30th Jun 1937Box 155 \ 2  scan0108
Test procedure document outlining oil temperature checks and investigations into crankshaft and unit performance.30th Jun 1937Box 155 \ 2  scan0109
Engine testing procedures for the Phantom No.3, B.9, and a Single Cylinder Unit.30th Jun 1937Box 155 \ 2  scan0110
Request to replace an undersized water feed pipe for a D.P.X.4 dynamometer to resolve issues with holding a Ph.III unit at a constant speed.1st Jul 1937Box 155 \ 2  scan0111
Programme of test bed work for the Wraith III No.3 unit.6th Jul 1937Box 155 \ 2  scan0112
List of engine testing procedures and checks for various components and configurations.6th Jul 1937Box 155 \ 2  scan0113
The position of and tests being carried out on Wraith III, II, and 25/30 units.13th Jul 1937Box 155 \ 2  scan0114
Specifications for various engine units detailing modifications and components.13th Jul 1937Box 155 \ 2  scan0115
Specifications for various engine units including U-7-S, W.7.2, and Wraith II.13th Jul 1937Box 155 \ 2  scan0116
Specification sheet for Wraith III engine units No. 1, No. 2, and No. 3 (Test Bed).13th Jul 1937Box 155 \ 2  scan0117
Programme of test bed work for Wraith No. 4 and No. 3 engine units.16th Jul 1937Box 155 \ 2  scan0118
Technical progress report on various component tests and parts for multiple car models.16th Jul 1937Box 155 \ 2  scan0119
Note concerning the completion of test tackle for fitting the No.6 unit to the Phantom III.16th Jul 1937Box 155 \ 2  scan0120
Programme of test bed work for a Wraith III No.2 unit, focusing on oil leaks and supply distribution.3rd Aug 1937Box 155 \ 2  scan0121
Test procedures for engine units, including comparative analysis of exhaust and induction systems.3rd Aug 1937Box 155 \ 2  scan0122
Request to Mr. Peskett to cover the benches in test house No.5 with aluminium sheet.3rd Aug 1937Box 155 \ 2  scan0123
Engine endurance and component testing report for Bentley and Phantom III units.3rd Aug 1937Box 155 \ 2  scan0124
Test bed programme for the Wraith III No.5 Unit, detailing special parts and performance checks.18th Aug 1937Box 155 \ 2  scan0125
List of engineering tasks, checks, and tests for specific vehicle units and test beds.18th Aug 1937Box 155 \ 2  scan0126
List of tasks for testing engine components including Bentley Units, pistons, and valve springs.3rd Aug 1937Box 155 \ 2  scan0127


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