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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Letter discussing a Bentley car trial at Brooklands and seeking information about a new alcohol-blend motor fuel.3rd May 1933Box 27a \ 4  Scan108
Properties and performance of Koolmotor Alcohol Blend fuel, extracted from a letter by Cities Service Oil Company Ltd.5th May 1933Box 27a \ 4  Scan109
Letter extract discussing the supply of a product to Messrs. Montagu Burton Limited and the origins of its components.5th May 1933Box 27a \ 4  Scan110
Letter from Ethyl Export Corporation discussing the properties and knock rating of Koolmotor fuel.5th May 1933Box 27a \ 4  Scan111
Letter from Standard Oil Company of New Jersey regarding the availability of Hydrogenated Safety Fuel 'Safe-T-Esso'.7th May 1933Box 27a \ 4  Scan112
Properties, knock rating, and issues of Koolmotor alcohol blend fuel.8th May 1933Box 27a \ 4  Scan113
Further tests on Koolmotor Alcohol Blend fuel, including its octane value and hygroscopic action.17th May 1933Box 27a \ 4  Scan114
Letter from an oil company discussing the anti-knock value and pricing of their Koolmotor Alcohol Blend fuel.16th May 1933Box 27a \ 4  Scan115
Letter from Cities Service Oil Company regarding the stability of Koolmotor Alcohol Blend fuel.12th May 1933Box 27a \ 4  Scan116
Letter from Cities Service Oil Company Limited discussing favourable results from their alcohol fuel.12th May 1933Box 27a \ 4  Scan117
Aero engine fuel, arguing for a higher octane rating specification and criticising the freezing point limits.17th May 1933Box 27a \ 4  Scan118
Tests on Koolmotor Alcohol Blend fuel from the Cities Service Oil Company Ltd.17th May 1933Box 27a \ 4  Scan119
Letter from the Air Ministry regarding a draft specification for R.A.F. fuel and a related letter to suppliers.19th May 1933Box 27a \ 4  Scan120
Letter requesting information on maximum fuel octane values and T.E.L. additives for R.A.F. supply.19th May 1933Box 27a \ 4  Scan121
Letter to the Air Ministry concerning the ordering of Hydrogenated Fuel and a follow-up letter from the Standard Oil Company.23th May 1933Box 27a \ 4  Scan122
Letter from the Anglo-American Oil Company regarding an enquiry for non-inflammable high octane aviation fuel.23th May 1933Box 27a \ 4  Scan123
Letter to the Anglo American Oil Co. Ltd. requesting the octane number and price for 100 gallons of non-inflammable aviation fuel.26th May 1933Box 27a \ 4  Scan124
Letter from the Anglo-American Oil Company regarding the octane number and pricing of Safe-T-Esso fuel.27th May 1933Box 27a \ 4  Scan125
Letter to the Ethyl Export Corporation regarding correspondence about alcohol fuel and its 84 octane rating.29th May 1933Box 27a \ 4  Scan126
Letter from Ethyl Export Corporation regarding the inconsistent knock rating and octane numbers of Koolmotor Alcohol Blend fuel.30th May 1933Box 27a \ 4  Scan127
Letter discussing the effects of using Koolmotor Alcohol blend fuel in a car's fuel system.1st Jun 1933Box 27a \ 4  Scan128
Letter to The Secretary at Adastral House regarding the Octane Number of Safe-T-Esso fuel.1st Jun 1933Box 27a \ 4  Scan129
Letter from the Anglo-American Oil Company regarding the octane rating of Safe-T-Esso fuel.30th May 1933Box 27a \ 4  Scan130
The purchase of 100 gallons of Safe-T-Esso petrol.1st Jun 1933Box 27a \ 4  Scan131
Letter from Shell-Mex and B.P. Ltd discussing the required benzol addition to achieve an 80 Octane Number for D.T.D.134 fuel.2nd Jun 1933Box 27a \ 4  Scan132
The testing of Estonian fuel to determine the optimal mixture for engine performance.12th Jun 1933Box 27a \ 4  Scan133
Extract from a report concerning the quality and sampling of Belgian fuel for analysis.15th Jun 1933Box 27a \ 4  Scan134
Letter from Ethyl Export Corporation regarding fuel specifications, octane ratings, and valve head design for aero engines.16th Jun 1933Box 27a \ 4  Scan135
Page 2 of a letter discussing valve testing with stronger springs, different seat inserts, and leaded fuel.20th Jun 1933Box 27a \ 4  Scan136
Letter from Ethyl Export Corporation regarding the knock test results of a fuel sample taken from the Belgian Air Force.20th Jun 1933Box 27a \ 4  Scan137
The low octane rating of fuel used for Kestrel engines in Belgium following a sample test.21th Jun 1933Box 27a \ 4  Scan138
The correct fuel mixture for 'Kestrel' engines being used in Belgium.22th Jun 1933Box 27a \ 4  Scan139
Letter discussing a new fuel specification from the Air Ministry and the required Tetraethyl Lead to achieve various octane numbers.23th Jun 1933Box 27a \ 4  Scan140
Copy of a report from tester W. Jackson in Belgium regarding the lack of petrol octane testing facilities for the military.23th Jun 1933Box 27a \ 4  Scan141
Knock rating test results for Estonian shale benzine and subsequent engine testing requirements.27th Jun 1933Box 27a \ 4  Scan142
New French law requiring 16% alcohol in petrol and its reported effect of gumming up engine valves.4th Jul 1933Box 27a \ 4  Scan143
Issues with alcohol-blended petrol in France and the results of tests on Esso and Azur fuels.5th Jul 1933Box 27a \ 4  Scan144
Letter from the Experimental Department discussing Kestrel engine detonation tests in relation to jacket temperature and octane values.7th Jul 1933Box 27a \ 4  Scan145
Letter from Ethyl Export Corporation discussing fuel octane requirements for the Kestrel engine under specific test conditions.10th Jul 1933Box 27a \ 4  Scan146
Page two of a letter regarding a potential meeting to discuss valve samples.11th Jul 1933Box 27a \ 4  Scan147
Letter from the Air Ministry regarding the fuel specification for the Goshawk engine type test.11th Jul 1933Box 27a \ 4  Scan148
New fuel specifications for Goshawk engine tests following a joint A.R.C.-S.B.A.C. meeting.12th Jul 1933Box 27a \ 4  Scan149
Letter discussing alternative fuels and octane values for Goshawk engines.11th Jul 1933Box 27a \ 4  Scan150
Letter from The Bristol Aeroplane Company regarding higher octane fuel standards, including minimum octane values and lead content.13th Jul 1933Box 27a \ 4  Scan151
The second page of a typed letter signed by A.H.R. Fedden regarding the Air Ministry.13th Jul 1933Box 27a \ 4  Scan152
Letter to the Anglo-American Oil Co. Ltd. regarding specifications for two new fuels for the Air Services and an order for samples.13th Jul 1933Box 27a \ 4  Scan153
Letter specifying the knock ratings for non-leaded and leaded fuels.13th Jul 1933Box 27a \ 4  Scan154
Letter from Ethyl Export Corporation discussing the effect of mixture temperature on fuel octane number.13th Jul 1933Box 27a \ 4  Scan155
Order for two types of high-octane fuel from the Anglo American Oil Co. Ltd.14th Jul 1933Box 27a \ 4  Scan156
The purchase of 160 gallons of Methanol from I.C.I. Ltd.14th Jul 1933Box 27a \ 4  Scan157
Letter from the Anglo-American Oil Company regarding the despatch of Octane Fuel.15th Jul 1933Box 27a \ 4  Scan158
Letter from the Anglo American Oil Company regarding fuel octane numbers and a despatch of steel barrels.17th Jul 1933Box 27a \ 4  Scan159
Letter to Ethyl Export Corporation regarding the effects of Ethyl fuel on Magnesium components and the performance of Stellited valves.20th Jul 1935Box 27a \ 4  Scan160
Minutes of a conference on aero matters, discussing letters to the Air Ministry regarding regulations and fuel.20th Jul 1933Box 27a \ 4  Scan161
Letter to the Society of British Aircraft Constructors Ltd. regarding the need to update the Air Ministry's type test regulations for service engines.19th Jul 1933Box 27a \ 4  Scan162
Letter to the Air Ministry concerning the introduction of higher octane fuels for aircraft engines.17th Jul 1933Box 27a \ 4  Scan163
Letter from Ethyl Export Corporation concerning the effect of Ethyl on magnesium alloys and arranging a visit.21th Jul 1933Box 27a \ 4  Scan164
Letter to the Air Ministry regarding the corrosive effects of leaded petrol on Elektron magnesium alloy fuel tanks.20th Jul 1933Box 27a \ 4  Scan165
Page 2 of a letter discussing tests of 'leaded' petrol on magnesium alloy samples and enclosing two lab reports.28th Jun 1932Box 27a \ 4  Scan166
Report from the Ethyl Export Corporation on the effect of Ethyl Gasoline on Elektron Metal.28th Jun 1932Box 27a \ 4  Scan167
Experiments testing the effect of Ethyl Gasoline on Elektron metal used for aeroplane gasoline tanks.28th Jun 1932Box 27a \ 4  Scan168
Results and conclusions from a corrosion experiment on duralumin, aluminum, and Elektron metal using various fuels and water.28th Jun 1932Box 27a \ 4  Scan169
The corrosion resistance of chromate-coated Elektron metal when exposed to various fuels with and without water.21th Jul 1933Box 27a \ 4  Scan170
Fuel testing for the Belgian Government and silencers for 'Fox' or 'Firefly' aircraft.21th Jul 1933Box 27a \ 4  Scan171
Extracts concerning discussions with the Belgian Air Command about fuel quality and engine silencing.19th Jul 1933Box 27a \ 4  Scan172
Minutes from a technical conference discussing fuel knock ratings and the urgent need to type-test an engine with 87 octane fuel.24th Jul 1933Box 27a \ 4  Scan173
Letter from the Air Ministry regarding new fuel specifications for the Royal Air Force.22th Jul 1933Box 27a \ 4  Scan174
Cover note forwarding correspondence about a conference on fuel and Type Test regulations.24th Jul 1933Box 27a \ 4  Scan175
Letter to the Society of British Aircraft Constructors urging for updated and clear regulations from the Air Ministry for service engine type tests.19th Jul 1933Box 27a \ 4  Scan176
Letter to the Air Ministry regarding the introduction of new, higher octane aircraft fuels.17th Jul 1933Box 27a \ 4  Scan177
Letter from the Air Ministry regarding new fuel specifications for the Royal Air Force.22th Jul 1933Box 27a \ 4  Scan178
Letter from Ethyl Export Corporation discussing engine detonation and quoting German research papers.25th Jul 1933Box 27a \ 4  Scan179
Letter discussing jacket cooling improvements, fuel ratings, and a type test on 87 Octane Ethyl fuel.28th Jul 1933Box 27a \ 4  Scan180
Ordering two specific types of petrol for Goshawk engine tests.28th Jul 1933Box 27a \ 4  Scan181
From Hs. to Roy requesting an order for 500 gallons of Anglo American 77 Octane fuel.28th Jul 1933Box 27a \ 4  Scan182
The procurement of petrol for Goshawk and Kestrel engine type tests.28th Jul 1933Box 27a \ 4  Scan183
Order for 'T' Aviation Mix Ethyl Fluid from the Ethyl Export Corp.3rd Aug 1933Box 27a \ 4  Scan184
Internal office order to procure two types of octane fuel from the Anglo American Oil Company.4th Aug 1933Box 27a \ 4  Scan185
Confirming receipt of 12 cans of Aviation 'T' Mix Ethyl Fluid from the Ethyl Export Corporation.10th Aug 1935Box 27a \ 4  Scan186
Inquiry regarding dealings with the City's Service Oil Company about their 'Koolmotor' alcohol blend oil.15th Aug 1933Box 27a \ 4  Scan187
Letter regarding the failure of 14mm spark plugs when running with Ethyl petrol.23th Aug 1933Box 27a \ 4  Scan188
Two new fuel specifications, D.T.D. 224 and 230, and the associated instructions for testing and sampling.26th Aug 1933Box 27a \ 4  Scan189
From the Air Ministry regarding new standard fuel specifications for aircraft engines.8th Aug 1933Box 27a \ 4  Scan190
Fuel supply arrangements regarding knock rating certification and testing procedures.28th Aug 1933Box 27a \ 4  Scan191
The introduction of new standard fuels for aircraft engines and associated supply logistics.28th Aug 1933Box 27a \ 4  Scan192
Letter from Ethyl Export Corporation discussing issues with 14mm spark plugs when running on Ethyl petrol.29th Aug 1933Box 27a \ 4  Scan193
Technical drawing comparing an unmodified plug with a modified plug design to prevent overheating.4th Mar 1933Box 27a \ 4  Scan194
Attaching a laboratory report regarding fuel samples used on Fokker D.XVII and K.II.S. in Holland.31th Aug 1933Box 27a \ 4  Scan195
Laboratory report on fuel samples from a Fokker D XVII aircraft in Holland.29th Aug 1933Box 27a \ 4  Scan196
Order for 1000 gallons of D.T.D.230 fuel from the Anglo American Oil Co. Ltd.1st Sep 1933Box 27a \ 4  Scan197
Request for engine performance data regarding the effect of fuel anti-knock values on b.m.e.p. for a paper.4th Sep 1933Box 27a \ 4  Scan198
Letter page comparing the performance of Wright Co. and English air-cooled engines concerning octane fuel.7th Sep 1933Box 27a \ 4  Scan199
Letter from Ethyl Export Corporation requesting engine performance data with handwritten replies.7th Sep 1933Box 27a \ 4  Scan200
Letter from the Experimental Department providing car performance data for Bentley, 25 HP, and 40/50 models.8th Sep 1933Box 27a \ 4  Scan201
Letter concerning Air Ministry specifications for two new aero engine fuels, D.T.D.224 and D.T.D.230.7th Sep 1933Box 27a \ 4  Scan202
Letter from the Air Ministry concerning fuel specifications D.T.D.224 and D.T.D.230 for aero engines.4th Sep 1933Box 27a \ 4  Scan203
Engine development strategies in relation to different fuel octane ratings and specifications.4th Sep 1933Box 27a \ 4  Scan204
Specifications for fuel composition and usage during initial and development engine type tests.4th Sep 1933Box 27a \ 4  Scan205
Letter regarding experimental aero engine testing with higher T.E.L. fuel concentrations.11th Sep 1933Box 27a \ 4  Scan206
Letter to the Air Ministry regarding the testing of 50 gallons of Special Safety Fuel received from the U.S.A.11th Sep 1933Box 27a \ 4  Scan207


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