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
Internal request to order 'T' Aviation Mix Ethyl Fluid from the Ethyl Export Corp.13th Sep 1933Box 27a \ 4  Scan208
Two new Air Ministry specification fuels (DTD.224 & 230), detailing their octane ratings and testing on a Kestrel V engine.14th Sep 1935Box 27a \ 4  Scan209
Fuel calibration and investigation into improved ratings for the Goshawk engine.14th Sep 1933Box 27a \ 4  Scan210
Comparison of fuel performance (D.T.D.224, D.T.D.134, D.T.D.230) in Kestrel and Goshawk engines using evaporative cooling.14th Sep 1933Box 27a \ 4  Scan211
Investigation into an improved power rating for the Goshawk engine, comparing different fuel types and their performance characteristics.14th Sep 1933Box 27a \ 4  Scan212
Continued report on Goshawk engine ratings, discussing detonation, boost, and potential supercharger improvements compared to the Kestrel engine.14th Sep 1933Box 27a \ 4  Scan213
Laboratory reports on two different fuel samples (DTD.224 and DTD.230), detailing their properties.29th Aug 1933Box 27a \ 4  Scan214
Power consumption curves for a Goshawk fully supercharged engine.12th Sep 1938Box 27a \ 4  Scan215
Blank document page with a Print Room stamp from Derby.14th Sep 1933Box 27a \ 4  Scan216
Power and specific fuel consumption curves for a Goshawk fully supercharged engine.12th Sep 1935Box 27a \ 4  Scan217
Graph showing engine fuel consumption loops for the calibration of 87 and 77 octane fuels.12th Sep 1935Box 27a \ 4  Scan218
Rated altitude power curve graph for a fully supercharged engine.12th Sep 1935Box 27a \ 4  Scan219
Stamped by the Print Room in Derby.14th Sep 1933Box 27a \ 4  Scan220
Letter to the Air Ministry detailing the reasons for wishing to use 87 octane fuel for testing Goshawk engines.15th Sep 1933Box 27a \ 4  Scan221
The advantages of 87 octane fuel for the Goshawk engine and a request for its use in type tests.15th Sep 1933Box 27a \ 4  Scan222
Request from the Air Ministry to supply 2 gallons of special safety fuel for testing at the Air Ministry Laboratory.15th Sep 1933Box 27a \ 4  Scan223
Letter confirming the dispatch of 2 gallons of Special Safety Fuel for testing purposes.19th Sep 1933Box 27a \ 4  Scan224
Letter to the Air Ministry confirming the despatch of two gallons of Special Safety Fuel for testing purposes.19th Sep 1933Box 27a \ 4  Scan225
Notification of the receipt of 12 cans of Ethyl Fluid from the Ethyl Export Corporation.19th Sep 1933Box 27a \ 4  Scan226
Responding to an enquiry about 'Koolmotor' fuel.19th Sep 1933Box 27a \ 4  Scan227
Letter to Ethyl Export Corporation regarding permissible M.E.P. results for a Kestrel S. engine with different octane fuels.20th Sep 1933Box 27a \ 4  Scan228
Specification table comparing the Kestrel and Goshawk engines.20th Sep 1933Box 27a \ 4  Scan229
Letter from Ethyl Export Corporation thanking Rolls Royce for octane and engine rating information and discussing a 50-hour test on leaded fuel.21th Sep 1933Box 27a \ 4  Scan230
Cover note enclosing two letters from Cities Service Oil Co. Ltd. regarding Kool-Motor Alcohol Blend Fuel.21th Sep 1933Box 27a \ 4  Scan231
Letter from Cities Service Oil Company regarding the octane value and properties of alcohol fuel for aviation purposes.22th Sep 1933Box 27a \ 4  Scan232
Letter from an oil company proposing a collaborative test of an alcohol blend fuel in an aero engine.19th Sep 1933Box 27a \ 4  Scan233
Page 2 of a letter from Cities Service Oil Company Limited regarding the supply of fuel and oil for testing.25th Sep 1933Box 27a \ 4  Scan234
Request for a supply of neat Ethyl fluid (T.E.L.) for tests in France and advice on its container.25th Sep 1933Box 27a \ 4  Scan235
Letter from Speedhire Service Garage regarding their Speed No. 1 Motor Spirit.5th Oct 1933Box 27a \ 4  Scan236
Reprint from the 'Marylebone Mercury' detailing the results of 'Speed' petrol consumption tests.29th Sep 1933Box 27a \ 4  Scan237
Cover letter regarding an attached letter from the Ethyl Export Corporation about the fuel situation in Belgium.7th Oct 1933Box 27a \ 4  Scan238
Letter from the Ethyl Export Corporation regarding a meeting with the Belgian Air Ministry about fuel specifications.6th Oct 1933Box 27a \ 4  Scan239
Report from tester D. Jackson regarding the change to D.T.D.224 specification fuel in Belgium.21th Oct 1933Box 27a \ 4  Scan240
Urgent internal order for 12 cans of Ethyl Fluid from Ethyl Export Corporation Ltd.23th Oct 1933Box 27a \ 4  Scan241
Order of 4000 gallons of D.T.D.250 fuel for a type test.25th Oct 1933Box 27a \ 4  Scan242
Fuel for engines in Belgium, attaching related correspondence.28th Oct 1933Box 27a \ 4  Scan243
Letter from the Belgian Ministry of National Defense concerning a fuel change for Kestrel engines and its impact on the 'BOOST' setting.25th Oct 1933Box 27a \ 4  Scan244
Letter in French to the Belgian Aeronautical Service regarding engine operation with 77 octane fuel.28th Oct 1933Box 27a \ 4  Scan245
Laboratory report on a sample of Shell Fuel to D.T.D. Spec. 230.24th Nov 1933Box 27a \ 4  Scan246
Order for 12 cans of 'T' Aviation Mix Ethyl Fluid.1st Nov 1933Box 27a \ 4  Scan247
Letter declining a request to test a sample of Speed Petrol due to a lack of facilities and company policy.6th Nov 1933Box 27a \ 4  Scan248
Request to order 500 gallons of D.T.D.230 fuel from Shell Mex. & B.P. Ltd for testing.7th Nov 1933Box 27a \ 4  Scan249
Letter from Speedhire Service Garage concerning a sample of Speed petrol that could not be tested.7th Nov 1933Box 27a \ 4  Scan250
Fuel for engines in Belgium, referencing an attached letter sent to Colonel Verelst.8th Nov 1933Box 27a \ 4  Scan251
Letter to the Belgian Ministry of Defence regarding engine performance variations when changing fuels.8th Nov 1933Box 27a \ 4  Scan252
Order of 24 cans of Aviation Mix Ethyl Fluid.9th Nov 1933Box 27a \ 4  Scan253
To Despatch Stores regarding the return of an empty 2-gallon petrol tin.11th Nov 1933Box 27a \ 4  Scan254
Internal memorandum instructing that all future fuel orders must state the specific purpose for which the fuel is required.15th Nov 1933Box 27a \ 4  Scan255
Aero engine fuel specifications D.T.D. 224 & 230 and octane values for type tests.16th Nov 1933Box 27a \ 4  Scan256
Confirming the receipt of 24 cans of Aviation 'T' Mix Ethyl Fluid from The Ethyl Export Corporation Ltd.16th Nov 1935Box 27a \ 4  Scan257
Specification for D.T.D. 224/77 Octane Standard Fuel for aero-engines.1st Jan 1933Box 27a \ 4  Scan258
Specification notice for 87 Octane Standard fuel for aero-engines.1st Jan 1933Box 27a \ 4  Scan259
The octane value of a fuel consignment from Shell Mex Limited, making it unsuitable for type test running.18th Nov 1933Box 27a \ 4  Scan260
Instructions concerning aero engine fuel for type tests, highlighting an issue with fuel from Shell Mex Limited having an incorrect octane value.20th Nov 1933Box 27a \ 4  Scan261
Order of 4000 gallons of D.T.D.230 fuel for an EXPhantom III Type Test.22th Nov 1933Box 27a \ 4  Scan262
Query regarding payment for Schneider Trophy fuel used for tests on a 'Kestrel' Engine No.25.19th Dec 1933Box 27a \ 4  Scan263
For an attached list detailing specific gravity, distillation tests, and octane values of various petrols.8th Dec 1933Box 27a \ 4  Scan264
Comparison table of motor spirits from Summer 1933, detailing their properties and octane numbers.1st Jan 1933Box 27a \ 4  Scan265
Table comparing the specific gravity, distillation temperatures, and octane numbers of various fuel brands.15th Dec 1933Box 27a \ 4  Scan266
Confirming the receipt of 24 cans of Aviation 'T' Mixture Ethyl Fluid.15th Dec 1933Box 27a \ 4  Scan267
The substitution of a special aero engine fuel with a standard leaded fuel specification for supercharged engines.15th Dec 1933Box 27a \ 4  Scan268
Results of a test on Regent petrol, noting inconsistent carburation.18th Dec 1933Box 27a \ 4  Scan269
Change in aero engine fuel specification and handling of surplus stock.20th Dec 1933Box 27a \ 4  Scan270
Request to order 4,000 gallons of DTD.230 fuel for K.25 Valve-Development and P.V.12 Type tests.22th Dec 1933Box 27a \ 4  Scan271
Letter from Ethyl Export Corporation discussing testing methods for valve burning using saw cuts on valve seats.22th Nov 1933Box 27a \ 4  Scan272
Confirming the discontinuation of leaded fuel for type tests, to be substituted with a 50/50 Benzol mixture.23th Nov 1933Box 27a \ 4  Scan273
Letter concerning the logistical difficulties in obtaining prompt despatch of Ethyl Fluid from the Ethyl Export Corporation.24th Nov 1933Box 27a \ 4  Scan274
Initial tests of Regent petrol, noting poor performance regarding detonation and carburation.27th Nov 1933Box 27a \ 4  Scan275
Requesting an order of 48 cans of Aviation Mix Ethyl Fluid from the Ethyl Export Corp.29th Nov 1933Box 27a \ 4  Scan276
Circular letter from the Air Ministry regarding new aviation fuel specifications.23th Nov 1933Box 27a \ 4  Scan277
The conditions for using D.T.D. 230 - 87 Octane Standard Fuel.1st Dec 1933Box 27a \ 4  Scan278
Report from Tester Jackson in Belgium on the effects of new fuel D.T.D.224 on engine performance and required adjustments.1st Dec 1933Box 27a \ 4  Scan279
Letter from Silvertown Lubricants Limited regarding the composition and pricing of Running-in-Compound.1st Dec 1934Box 27a \ 4  Scan280
Letter from Ethyl Export Corporation concerning the supply of 1-litre cans of Ethyl Fluid for experimental work.1st Dec 1933Box 27a \ 4  Scan281
Letter discussing the reduction in use of 1-litre cans due to concerns about lead poisoning.4th Dec 1933Box 27a \ 4  Scan282
Laboratory report detailing the lead content found in a fuel sample.4th Dec 1933Box 27a \ 4  Scan283
Letter to Ethyl Export Corporation regarding the supply of high lead concentration petrol and reducing an order.4th Dec 1933Box 27a \ 4  Scan284
Letter from Ethyl Export Corporation regarding the supply of leaded petrol and arranging a meeting.5th Dec 1933Box 27a \ 4  Scan285
Complaints from fuel suppliers regarding insufficient time for testing new aero engine fuel specifications.15th Dec 1933Box 27a \ 4  Scan286
Inquiry about tests on Regent petrol from Trinidad Leaseholds.16th Feb 1934Box 27a \ 4  Scan287
Regent Petrol, its source from Trinidad Leaseholds Ltd, testing, and use.20th Feb 1934Box 27a \ 4  Scan288
Results of a 50-gallon fuel trial and the company's view on petrol brand claims.22th Feb 1934Box 27a \ 4  Scan289
Concerns from Regent Petrol about its performance and arranging a meeting with their expert.28th Feb 1934Box 27a \ 4  Scan290
Test report on a Phantom R.42 comparing the performance of Pratt's Ethyl and Regent Petrol.1st Mar 1934Box 27a \ 4  Scan291
The performance of Regent Petrol compared to Pratt's Ethyl Petrol in a Standard Phantom vehicle.5th Mar 1934Box 27a \ 4  Scan292
Proposal letter to E. Hives for testing a new alcohol-based motor fuel claimed to increase power and reduce carbon deposits.20th Mar 1934Box 27a \ 4  Scan293
Letter to E. Hives Esq. regarding an extract from an Italian Ministry of Agriculture report.15th Feb 1934Box 27a \ 4  Scan294
Translated digest from a report by the Italian Government Department of Agriculture on the patented fuel 'Alcoolina'.15th Feb 1934Box 27a \ 4  Scan295
Letter discussing the use of alternative fuels like alcohol and methanol in aero engines versus standard, widely available fuels for motorcars.23th Mar 1934Box 27a \ 4  Scan296
Summary of tests on the effect of alcohol and benzole additions on fuel consumption in different engines.1st Mar 1934Box 27a \ 4  Scan297
Fuel consumption tests comparing petrol with alcohol and benzole mixtures on different engines.3rd Apr 1934Box 27a \ 4  Scan298
Letter regarding the efficiency and effects of a new alcohol-based fuel on engines.3rd Apr 1934Box 27a \ 4  Scan299
Letter to E. Hives Esq. discussing the properties and potential of a new fuel containing 70% alcohol.3rd Apr 1934Box 27a \ 4  Scan300
Information to reply to a separate memo regarding Shell Mex & B.P. Ltd.16th Apr 1934Box 27a \ 4  Scan301
Query regarding a request from Shell Mex and B.P. Ltd. to purchase a sectioned synchro-mesh gearbox for advertising.13th Apr 1934Box 27a \ 4  Scan302
Follow-up note regarding correspondence with Shell Mex & B.P. Ltd.26th Apr 1934Box 27a \ 4  Scan303
Request for remarks on the use of alcohol fuels, specifically Koolmotor and Cleveland Discol, on company chassis.1st May 1934Box 27a \ 4  Scan304
Letter from Shell-Mex House to E. W. Hives requesting an appointment for lunch.5th May 1934Box 27a \ 4  Scan305
Letter from Trinidad Leaseholds Ltd. to Bentley Motors requesting results of tests on their motor spirits.7th May 1934Box 27a \ 4  Scan306
Request for fuel reports from Trinidad Leaseholds Ltd.9th May 1934Box 27a \ 4  Scan307


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