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
Remarks on letters received concerning Mex Motor Spirit.22th Jan 1915Box 20 \ 4  Scan009
Letter from William Arnold enquiring about the suitability of Mex petrol for Chassis 31-PB.21th Jan 1915Box 20 \ 4  Scan010
Customer letter of complaint about the quality of Shell fuel and seeking advice on using 'Mex' Spirit as an alternative.20th Jan 1915Box 20 \ 4  Scan011
Clarifying the use of Mex Motor Spirit for testing purposes compared to the superior Shell No.1 spirit.23th Jan 1915Box 20 \ 4  Scan012
Potential change in petrol suppliers from 'Mex' to 'Shell'.11th Aug 1920Box 20 \ 4  Scan013
Complaint regarding short-filled and unsealed tins of Mex petrol from The Bowring Petroleum Company.9th Feb 1920Box 20 \ 4  Scan014
Questioning the continued use of Mex Petrol and recommending a switch to Shell Spirit.23th Jun 1920Box 20 \ 4  Scan015
Cost and quality of different petrol suppliers for engine testing.27th Jan 1921Box 20 \ 4  Scan016
Laboratory comparison report of two petrol samples, 'Mex' and 'BP1', detailing their properties.11th Feb 1921Box 20 \ 4  Scan017
Laboratory report detailing the distillation results of a Shell Mex Spirit fuel sample.8th Aug 1931Box 20 \ 4  Scan018
Laboratory distillation test results for a mixture of Shell Mex Spirit and 10% Parafin.22th Aug 1921Box 20 \ 4  Scan019
Instruction sheet recording numerical data for a 'Max Spirit' test, likely for engine performance, at various RPMs.28th Oct 1918Box 20 \ 4  Scan020
Instruction sheet containing handwritten tabulated data for various revolution speeds.28th Oct 1918Box 20 \ 4  Scan021
Impracticality of testing all submitted oil brands and questioning the benefits of testing Shell Mex oil.27th Oct 1922Box 20 \ 4  Scan022
Page 2 of a memo regarding the policy on testing and reporting on parts.4th Nov 1922Box 20 \ 4  Scan023
Offer from Shell-Mex Limited to test their oils.4th Nov 1922Box 20 \ 4  Scan024
BJ to Hs agreeing to write to the Shell Company regarding Shell Mex.28th Nov 1922Box 20 \ 4  Scan025
Attaching a copy of a letter addressed to Shell-Mex Ltd.30th Nov 1922Box 20 \ 4  Scan026
Letter to Shell-Mex Ltd. concerning the requirements for testing their oil for potential recommendation.29th Nov 1922Box 20 \ 4  Scan027
Page 2 of a letter outlining the policy for testing goods from other firms.29th Nov 1922Box 20 \ 4  Scan028
Letter from Harry Ricardo discussing the performance of a special Shell oil compared to castor oil.16th Apr 1923Box 20 \ 4  Scan029
Announcing the market availability of Shell Super-Light Oil after testing.1st Sep 1923Box 20 \ 4  Scan030
'Hs' to 'Ms' requesting an order for 20 gallons of oil.1st Oct 1923Box 20 \ 4  Scan031
The performance differences of a 20 HP engine using various brands of petrol.26th Oct 1923Box 20 \ 4  Scan032
Comparative tests of different petrol grades to determine differences in 'loading up' during low-speed, full-throttle work on a 4-Goshawk-11.25th Oct 1923Box 20 \ 4  Scan033
Performance comparison of 20 HP cars using various brands of petrol.24th Dec 1924Box 20 \ 4  Scan034
Suitability of Shell-Mex oils and the pressure to conduct tests on them.24th Dec 1924Box 20 \ 4  Scan035
Letter from Shell-Mex Ltd. regarding a customer's query about using their oil without voiding the car's guarantee.22th Dec 1924Box 20 \ 4  Scan036
Oil recommendations and customer feedback, comparing super light oil to medium viscosity oil.29th Jan 1925Box 20 \ 4  Scan037
Enquiry from Frederick Goodliffe of City Cheese Warehouse regarding the merits of Shell Mex and B.P. motor spirits.22th Mar 1926Box 20 \ 4  Scan038
Letter responding to a query about the use and performance of different fuel types, specifically Shell Mex motor spirit.29th Mar 1926Box 20 \ 4  Scan039
Suitability of Shell-de-Luxe versus Shell super-light engine oils.12th Apr 1926Box 20 \ 4  Scan040
Cover memo regarding a letter from Shell Mex Ltd and a proposed reply.28th Jun 1926Box 20 \ 4  Scan041
Letter to Shell-Mex Limited deferring a proposed visit regarding 'Shell' lubricants due to an inability to conduct tests.28th Jun 1926Box 20 \ 4  Scan042
Letter from Shell-Mex Limited regarding the international distribution of their motor oils.25th Jun 1926Box 20 \ 4  Scan043
Letter from Shell Mex Limited clarifying the widespread distribution of their oils and requesting a meeting.25th Jun 1926Box 20 \ 4  Scan044
Letter from Shell-Mex inquiring about progress on long-distance flight tests and difficulties experienced with freezing.5th Apr 1927Box 20 \ 4  Scan045
Petrol supply failure caused by fluff found in fuel from Shell-Mex.2nd Jun 1927Box 20 \ 4  Scan046
Letter from Shell-Mex Limited responding to a complaint about impurities in their petrol.19th May 1927Box 20 \ 4  Scan047
Confidential letter regarding an offer from Shell Mex Ltd to test their new 'Racing Shell' petrol.17th Feb 1930Box 20 \ 4  Scan048
Informational leaflet on 'Racing Shell' fuel for high-performance engines, detailing its properties, benefits, and retail price.17th Feb 1930Box 20 \ 4  Scan049
Guide on the properties and usage of 'Racing Shell' fuel for various engine types.18th Feb 1930Box 20 \ 4  Scan050
Request to test Shell Petrol on cars and aero engines, asking for its H.U.C.R. value.18th Feb 1930Box 20 \ 4  Scan051
Query regarding the receipt of a 50-gallon sample of 'Racing Shell' petrol.28th Feb 1930Box 20 \ 4  Scan052
Confirmation of receipt of a 50-gallon sample of 'Racing Shell' fuel.1st Mar 1930Box 20 \ 4  Scan053
Letter to Shell-Mex Ltd. requesting anti-knock values and Ricardo's figures for 'Racing Shell' petrol.1st Mar 1930Box 20 \ 4  Scan054
Use of Shell Lubricating Oil in the 23-EX 10,000 miles test car.3rd Apr 1930Box 20 \ 4  Scan055
Letter from Shell-Mex Limited regarding the specifications of Triple Shell Motor Oil and its comparison to competitor products.16th Apr 1930Box 20 \ 4  Scan056
Postscript from Shell-Mex Limited regarding the availability of Triple Shell Motor oil in France for experimental use.16th Apr 1930Box 20 \ 4  Scan057
Specification sheet for Triple Shell Motor Oil.16th Apr 1930Box 20 \ 4  Scan058
The change to Shell Spirit D.T.D. 134 for H. Engine tests, discussing its aromatic hydrocarbon content.7th May 1930Box 20 \ 4  Scan059
Laboratory report on the analysis of a spirit sample against D.T.D. 134 specification.14th May 1930Box 20 \ 4  Scan060
Letter from Shell-Mex and B.P. Ltd confirming a meeting with Mr. Hives regarding aviation fuels and a Phantom II engine viewing.21th Feb 1933Box 20 \ 4  Scan061
Test results for wheelbase and steering lock turning circles on a 1907 long car and a 1908 type frame.16th Mar 1911Box 20 \ 5  Scan001
Steering specifications detailing the turning circles for the 1550 chassis.16th Mar 1911Box 20 \ 5  Scan002
Specification sheet for steering turning circles of the 1550 chassis.18th Mar 1911Box 20 \ 5  Scan003
Steering turning circles data for the 1900 chassis.31th Jan 1912Box 20 \ 5  Scan004
Steering test results detailing the smallest turning circles for short and long chassis.7th Dec 1909Box 20 \ 5  Scan005
Comparing the smaller turning circle of a 45hp Fiat to a Rolls-Royce car, questioning the effect of its shorter wheelbase.30th Oct 1911Box 20 \ 5  Scan006
Instruction note comparing vehicle turning circles for different wheelbases.31th Oct 1911Box 20 \ 5  Scan007
Instructions with a table of dimensions regarding differences in wheel bores and steering.31th Oct 1911Box 20 \ 5  Scan008
Note recording the steering lock diameters for right and left hand turns, with steering stops.27th Mar 1908Box 20 \ 5  Scan009
On steering wheel movement specifications for full lock.6th Sep 1909Box 20 \ 5  Scan010
Extract from a report discussing the turning circle of various chassis.9th Oct 1912Box 20 \ 5  Scan011
The turning circle and steering lock adjustments for a chassis.24th Oct 1912Box 20 \ 5  Scan012
Technical report discussing dynamometer testing, silencer explosions, and a comparative analysis of steering wobble with a Daimler car.24th Oct 1912Box 20 \ 5  Scan013
Wheel wobble and balance testing, including notes on a Delaunay-Belleville vehicle.24th Oct 1912Box 20 \ 5  Scan014
Technical report comparing steering and wobble characteristics of Napier and R.R. No. 2100E cars against competitors.9th Sep 1916Box 20 \ 5  Scan015
Extract from a report on a steering wobble issue for Chassis No. 7-CA, suggesting modifications.9th Sep 1916Box 20 \ 5  Scan016
Confirmation of a telegram requesting the turning circle for the standard forty fifty car.18th Nov 1918Box 20 \ 5  Scan017
Turning circles of a chassis, with comparisons of lock angles to other manufacturers like Delauney, Daimler, and Napier.18th Nov 1918Box 20 \ 5  Scan018
Weakness of steering lock stops and a proposal to strengthen them.25th Apr 1921Box 20 \ 5  Scan019
Table of turning circle dimensions for the 40/50 and Goshawk II chassis.1st Dec 1923Box 20 \ 5  Scan020
Requesting the turning circle of a Hispano, a short chassis, and a long chassis, both with and without balloon tyres.28th Nov 1923Box 20 \ 5  Scan021
Attached chart showing turning circles for 40/50 HP, Coshawk ll., and Hispano cars.1st Dec 1923Box 20 \ 5  Scan022
From CJ to Hs regarding turning circles and a request to forward a related document.1st Dec 1923Box 20 \ 5  Scan023
Accompanying a print that compares turning circles for 40/50 and 20 HP models with standard balloon tyres.5th Dec 1923Box 20 \ 5  Scan024
Requesting clarification on the turning circle figures for the 40/50 long chassis, comparing data from various sources.12th Jan 1924Box 20 \ 5  Scan025
Request for steering specifications, locks, and turning circles for the Hispano Suiza.23th Jan 1924Box 20 \ 5  Scan026
Communication regarding a report on Balloon Tyres, supply from Dunlop, and the effect on turning circles for 20 HP and 40/50 HP cars.23th Jan 1924Box 20 \ 5  Scan027
Requesting information on the turning circles for the 40/50 model.24th Jan 1924Box 20 \ 5  Scan028
Discrepancy in steering lock angles and a check of the turning circles for the 40/50 HP chassis.29th Jan 1924Box 20 \ 5  Scan029
The turning circles for a 40/50 HP long chassis with a 150' wheelbase.12th Jul 1923Box 20 \ 5  Scan030
Turning circles and locks on a production chassis, particularly the challenges with front wheel brake models.31th Jan 1924Box 20 \ 5  Scan031
Querying turning circle figures for various chassis models.1st Feb 1924Box 20 \ 5  Scan032
From CJ to Hs questioning the larger turning circle of PN's car and its implications for other chassis.2nd Feb 1924Box 20 \ 5  Scan033
Issues with a car's turning circle, specifically concerning condemned radius rods and ongoing modifications.2nd Feb 1924Box 20 \ 5  Scan034
Turning circles for different chassis, comparing measurements over hub caps versus track lines.7th Feb 1924Box 20 \ 5  Scan035
The steering geometry and lever measurements for a Hispano model.7th Feb 1924Box 20 \ 5  Scan036
Showing design details and movement of a Hispano Suiza steering system.7th Jul 1924Box 20 \ 5  Scan037
Recommending final test procedures for the 40/50 HP steering to address variations in turning circles.2nd Feb 1924Box 20 \ 5  Scan038
Querying the turning circles of various chassis models, including the EAC.III and the 40/50.2nd Feb 1924Box 20 \ 5  Scan039
Setting steering locks and defining the turning circle for the 40/50 HP chassis.1st Feb 1924Box 20 \ 5  Scan040
Instructions regarding front wheel and steering dimensions for the 20-HP model.11th Feb 1924Box 20 \ 5  Scan041
Turning circles of long and short chassis, and modifications to improve the lock.2nd Feb 1924Box 20 \ 5  Scan042
Turning circles with the latest EAC.111 Axle compared to the standard long chassis.2nd May 1924Box 20 \ 5  Scan043
Confidential memo from B.J. to E.A.C. inquiring about the turning circle of the E.A.C.2.15th May 1924Box 20 \ 5  Scan044
Secret memorandum specifying the turning circles for the EAC.11 model, referencing the EAC.111.17th May 1924Box 20 \ 5  Scan045
From GWH to Mr. Hives detailing the turning circles for the 98-NK car.21th May 1924Box 20 \ 5  Scan046
The changes in turning circles for a 20 HP model due to a new steering system.15th Apr 1926Box 20 \ 5  Scan047


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