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
Steering column movement issues, wobble problems, and a comparison with a Bentley vehicle's steering system.28th Jun 1928Box 21 \ 2  Scan057
Performance evaluation of a car's key mechanical components.28th Jun 1928Box 21 \ 2  Scan058
Performance review and conclusion comparing a Bentley with a Phantom and a Chrysler.29th Jun 1928Box 21 \ 2  Scan059
Test drive and comparison of a Bentley Six-cylinder Saloon, noting steering and engine characteristics.29th Jun 1928Box 21 \ 2  Scan060
Report page comparing car steering selectivity and the prevention of steering wobbles.29th Jun 1928Box 21 \ 2  Scan061
Test report on a 4.5 Litre Bentley, detailing its performance and handling.12th Jul 1928Box 21 \ 2  Scan062
Road test report on a sports car, evaluating its suspension, braking, and transmission performance.12th Jul 1928Box 21 \ 2  Scan063
Road test and impressions of the 6 1/2 litre 6-cylinder Speed Model Bentley.26th Mar 1929Box 21 \ 2  Scan064
Secret internal memo discussing faults found in a Bentley and a proposed solution for engine roughness.10th Jul 1929Box 21 \ 2  Scan065
Letter from Mr W.E. Rootes to Mr H. Heath requesting dimensions for the 6 1/2 Litre Bentley engine.18th Jul 1929Box 21 \ 2  Scan066
And comparing engine measurements for various Bentley models.1st Aug 1929Box 21 \ 2  Scan067
Test drive report and impressions of a 6.5 litre Speed Bentley.22th Mar 1929Box 21 \ 2  Scan068
Page 2 of a typed report discussing a car's performance and body design.7th Aug 1929Box 21 \ 2  Scan069
Cover letter to Mr. Robotham enclosing copies of correspondence as requested.7th Aug 1929Box 21 \ 2  Scan070
Cover note attaching a report concerning the 8-Litre Bentley.17th Nov 1930Box 21 \ 2  Scan071
Test drive and assessment of a new 8-litre Bentley, comparing it to the Phantom II.14th Nov 1930Box 21 \ 2  Scan072
Conversation with the Maharajah of Rewa comparing the 8-litre Bentley to the Phantom II.12th Jan 1931Box 21 \ 2  Scan073
Filing instruction note for documents related to the 8 Litre Bentley.22th Jan 1931Box 21 \ 2  Scan074
Competitive threat of the 8 litre Bentley to the Phantom II, proposing to acquire one for analysis.22th Jan 1931Box 21 \ 2  Scan075
Power readings for a standard 8-litre engine Y.X.5106 with a 5.1 compression ratio.22th Jan 1931Box 21 \ 2  Scan076
Valve timing and clearances specifications for a 6-cylinder engine camshaft.27th Feb 1930Box 21 \ 2  Scan077
Technical notes on 8-litre engine valve and camshaft specifications.1st Dec 1949Box 21 \ 2  Scan078
Letter from Bentley Motors to Ernest Hives of Rolls Royce regarding an upcoming visit and car availability.27th Jan 1931Box 21 \ 2  Scan079
Letter to Col. Barrington of Bentley Motors arranging a meeting to demonstrate a new Continental Touring car.28th Jan 1930Box 21 \ 2  Scan080
Intelligence on a new competitor model from Bentley.3rd Feb 1931Box 21 \ 2  Scan081
The engine, performance, and handling characteristics of an 8 Litre Bentley.2nd Mar 1931Box 21 \ 2  Scan082
Short note describing rear hydraulic dampers and anchorage points.19th Mar 1931Box 21 \ 2  Scan083
Specifications of a new Bentley six-cylinder engine with a Ricardo patent head.19th Mar 1931Box 21 \ 2  Scan084
Blueprint diagram of a Ricardo Patent cylinder head.19th Mar 1931Box 21 \ 2  Scan085
Research into the 'booming' noise of car bodies, comparing their performance to Bentley products.7th Mar 1931Box 21 \ 2  Scan086
Arranging the use of Jack Barclay's 8-litre Bentley for tests of 26-EX at Brooklands.8th Apr 1931Box 21 \ 2  Scan087
Comparative performance tests between two Continental models and two Bentley cars.17th Apr 1931Box 21 \ 2  Scan088
Comparative test report on the performance of Bentley models, focusing on speed, acceleration, and engine characteristics.21th Apr 1931Box 21 \ 2  Scan089
Comparison of engine performance between Rolls-Royce and Bentley, with suggestions for improvements.21th Apr 1931Box 21 \ 2  Scan090
Engine performance, speed limitations, and the merits of a supercharged 12-cylinder engine.21th Apr 1931Box 21 \ 2  Scan091
Requesting to borrow a Bentley car with an enclosed body for an extended period of three to four weeks.25th Nov 1931Box 21 \ 2  Scan092
Arrangements to borrow a 4.5 Litre Supercharged and an 8 Litre Bentley car for examination.30th Nov 1931Box 21 \ 2  Scan093
The loan of an 8-litre Bentley for a week, clarifying whether a chassis or a complete car is required.24th Nov 1931Box 21 \ 2  Scan094
From 'E' arguing that the 8 Litre Bentley's running smoothness is comparable to their own cars.11th May 1931Box 21 \ 2  Scan095
Expressing relief that the new Bentley 4 Litre is not considered a severe competitor to the 20/25 model.29th May 1931Box 21 \ 2  Scan096
Expressing concerns about the design and potential issues of the Bentley 4 Litre.27th May 1931Box 21 \ 2  Scan097
Proposal for a new Bentley sports car model, detailing engine modifications and market positioning.5th Dec 1931Box 21 \ 2  Scan098
Internal discussion on future car development strategy, timelines, risks, and market positioning of new models.5th Dec 1931Box 21 \ 2  Scan099
Proposal outlining cost reductions for the production of a Bentley car.5th Dec 1931Box 21 \ 2  Scan100
Competitor sports cars 'Invicta' and 'Lagonda' in relation to the Bentley sports car market.7th Dec 1931Box 21 \ 2  Scan101
Noting the pre-existing poor condition of a Bentley 8-Litre car before testing.1st Jan 1932Box 21 \ 2  Scan102
Bentley 8-Litre car, noting its high mileage, noisy back axle, and bad piston knocks before testing.1st Jan 1932Box 21 \ 2  Scan103
Condition of a Bentley 8 Litre car after 18,000 miles and outlining future work.1st Jan 1932Box 21 \ 2  Scan104
Confirming an extension for a loaned 8-litre Bentley car from Jack Barclay Ltd.7th Jan 1932Box 21 \ 2  Scan105
Transport of a 4-Litre Bentley Engine and a spare camshaft to Derby.15th Jan 1932Box 21 \ 2  Scan106
Completion of a 4-litre engine for experimental work, including parts and costs.14th Jan 1932Box 21 \ 2  Scan107
Arrangements to transport a 4 Litre Bentley engine with its test stand and spare camshafts to Derby.16th Jan 1932Box 21 \ 2  Scan108
Experiments on crankshaft torsional vibration periods for an 8 Litre Bentley.12th Jan 1932Box 21 \ 2  Scan109
Crankshaft vibration periods and a proposed damper design, referencing the Bentley 8.19th Jan 1932Box 21 \ 2  Scan110
Requesting an update on the testing of a 4-litre engine purchased from the old Bentley company.26th Sep 1932Box 21 \ 2  Scan111
Crankshaft vibration periods, comparing their design to Bentley's and noting weaknesses in the latter's approach.21th Jan 1932Box 21 \ 2  Scan112
Status and future of a test 'Bentley' Four Litre Engine.27th Sep 1932Box 21 \ 2  Scan113
Bentley 4-Litre engine, discussing its saleability and potential return for spares.28th Sep 1932Box 21 \ 2  Scan114
The disposal of a 4 Litre Bentley test bed engine.13th Jan 1933Box 21 \ 2  Scan115
The return of a 4-Litre Bentley Engine.16th Jan 1933Box 21 \ 2  Scan116
Requesting transport arrangements for a 4-litre Bentley engine unit to be returned to the London Service Station.8th Feb 1933Box 21 \ 2  Scan117
Letter from Bentley Motors to Rolls-Royce concerning the specifications and forwarding of an 8-litre engine piston, gudgeon pin, and buttons.3rd Mar 1933Box 21 \ 2  Scan118
Service department letter detailing issues and procedures for cylinder wall wear and pin end button fitting.3rd Mar 1933Box 21 \ 2  Scan119
From EH to R detailing a test run of a Calcott car and its associated issues.30th Oct 1917Box 21 \ 3  Scan001
Calcott rim varnish and security bolts.8th Dec 1917Box 21 \ 3  Scan002
Confirming the despatch of parts to West Wittering for a Calcutt Car.31th Dec 1917Box 21 \ 3  Scan003
Receipt of a tin of paint and security bolts from The Dunlop Rubber Co. for Mr. Royce.31th Dec 1917Box 21 \ 3  Scan004
Incorrectly sized valve tubes for a Calcott car, noting the difference in diameter.20th Sep 1918Box 21 \ 3  Scan005
The return and replacement of tubes with unsuitable valves for Calcott Tyres.3rd Oct 1918Box 21 \ 3  Scan006
Failed Stewart speedometer from a Calcott car and instructions for its replacement.7th Oct 1918Box 21 \ 3  Scan007
Request for an aero engine primer and parts to be fitted to a Calthorpe car for trial purposes.10th Oct 1918Box 21 \ 3  Scan008
Confirming the dispatch of a Primer and pipe connection for the Calcott.9th Oct 1918Box 21 \ 3  Scan009
Cover letter regarding forwarding a letter anonymously on behalf of Mr. Royce to Calcott Bros., and a request for a tyre cover.26th Oct 1918Box 21 \ 3  Scan010
Letter to Calcott Bros. Ltd. regarding incorrectly sized brake straps and a request for replacements with specific dimensions.30th Oct 1925Box 21 \ 3  Scan011
Letter discussing the greasing of ball bearings, supply of castings for brake linings, and brake shoe springs.31th Oct 1918Box 21 \ 3  Scan012
The missing drive portion of a Stewart Speedometer.31th Oct 1918Box 21 \ 3  Scan013
Lost parcel containing worn out Stewart Speedometer parts for Mr. Royce's Calcott car.6th Nov 1918Box 21 \ 3  Scan014
Lost Stewart Speedometer parts for a Calcott model, including sketches for identification.6th Nov 1918Box 21 \ 3  Scan015
Letter from supplier Calcott Bros. Ltd. responding to a query about brakes, suggesting worn drums or oil leakage.7th Nov 1918Box 21 \ 3  Scan016
To Mr. Hives regarding communications with Calcott Bros Ltd. concerning the Calcott Car and a motor cover.8th Nov 1918Box 21 \ 3  Scan017
Cover note forwarding a letter from Calcott Bros. Ltd. and requesting instructions on the matter.11th Nov 1918Box 21 \ 3  Scan018
Request for spare parts for a Stewart Speedometer on a Calcott car.13th Nov 1918Box 21 \ 3  Scan019
Letter from Cooper Stewart Engineering Co. Ltd. providing a price for speedometer fittings.20th Nov 1918Box 21 \ 3  Scan020
Requesting particulars to obtain parts for a Calcott Speedometer.2nd Dec 1918Box 21 \ 3  Scan021
Particulars for speedometer parts for a 'Calcott' car.11th Dec 1918Box 21 \ 3  Scan022
Particulars to obtain speedometer parts for Mr. Royce's Calcott car.18th Dec 1918Box 21 \ 3  Scan023
Specifications for speedometer parts for a 'Calcutt' car.11th Dec 1918Box 21 \ 3  Scan024
Dispatch note confirming the sending of speedometer parts for a Calcott Car.27th Jan 1919Box 21 \ 3  Scan025
Request to obtain a spare Calcott clutch cone and two fibre wearing pieces for a clutch withdrawing fork.24th Mar 1919Box 21 \ 3  Scan026
Requesting the maker's number or build date for a 'Calcott' chassis to obtain spares.26th Mar 1919Box 21 \ 3  Scan027
The procurement of spares for a 'Calcott' car built in 1913/14.26th Mar 1919Box 21 \ 3  Scan028
Request to manufacture two brass acetylene lamp nipples for a Calcott car, to be charged to Mr. Royce's private account.27th Mar 1919Box 21 \ 3  Scan029
Inability to find an identification number on a 1914 Calcott car for clutch spares.29th Mar 1919Box 21 \ 3  Scan030
Replacement of an aluminium leather-lined clutch with a malleable cone clutch lined with Thermoid.2nd Apr 1919Box 21 \ 3  Scan031
Proposing a modification to the 'Calcett' car clutch withdrawing mechanism with a diagram for new washers.4th Apr 1919Box 21 \ 3  Scan032
Confirming the dispatch of two washers for a Calcott Car.7th Apr 1919Box 21 \ 3  Scan033
Need for radiator louvres to improve engine performance with poor quality petrol.9th Apr 1919Box 21 \ 3  Scan034
Engine performance using benzol fuel from Birchenwood Collieries, noting issues with over-richness at slow speeds.9th Apr 1919Box 21 \ 3  Scan035
Requesting a Buick car with specific instructions regarding the condition of its tyres and rims.20th May 1919Box 21 \ 3  Scan036
The delivery of a Cadillac, a Marmon car, and the logistics of temporarily sending an experimental car to the USA.29th Sep 1920Box 21 \ 3  Scan037


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