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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Design suggestions for a cylinder head regarding the orientation of inlets and exhausts.21th Jun 1932Box 3 \ 4  04-page043
Testing a 'Peregrine' engine for Bansport, the need for gearbox drawings, and a decision on a fan.2nd Jun 1932Box 3 \ 4  04-page044
Progress report on engine modifications for the Peregrine and Bensport, and the building of the Peregrine chassis.2nd Aug 1932Box 3 \ 4  04-page045
Progress on the Peregrine & Bensport engine and gearbox, including modifications for cooling.4th Jun 1932Box 3 \ 4  04-page046
Report on the 20.HP Alvis Speed Model and design considerations for the Bensport chassis, including steering and engine mounting.6th Jun 1932Box 3 \ 4  04-page047
Improving steering and arranging a trial of a 20-HP Alvis Speed Model.6th Jun 1932Box 3 \ 4  04-page048
Road test report on the 20 HP Alvis Speed Model.30th May 1932Box 3 \ 4  04-page049
Page two of a car performance review and comparison report.30th May 1932Box 3 \ 4  04-page050
Listing instructions for seventeen chassis and body sections for the 'Bensport' project.13th Jun 1932Box 3 \ 4  04-page051
Progress report outlining vehicle sections that are complete, delayed due to lack of information, or awaiting a ruling.14th Jun 1932Box 3 \ 4  04-page052
From 'R.' outlining five points regarding production considerations for the Bensport starter.14th Jun 1932Box 3 \ 4  04-page053
Visit regarding the Bensport Engine, discussing blowers, drive systems, and engine support.18th Jun 1932Box 3 \ 4  04-page054
Design decisions regarding engine support, radiator type and support, carburetter placement, and front axle.18th Jun 1932Box 3 \ 4  04-page055
Modification to the front axle and steering tube for economical production and spares.17th Jun 1932Box 3 \ 4  04-page056
Record of a telephone conversation discussing design proposals for the Bensport engine's camshaft and appearance.17th Jun 1932Box 3 \ 4  04-page057
Engine design choices for the camshaft, supercharger, and other components.17th Jun 1932Box 3 \ 4  04-page058
Component choices including brakes, ignition, and accessories, along with commercial considerations.29th Aug 1932Box 3 \ 4  04-page059
The Bensport engine, discussing increased compression ratios and solutions for camshaft over-running.29th Aug 1932Box 3 \ 4  04-page060
Design changes for the Bensport engine, focusing on supercharger placement, gear train, and combustion chamber.22th Jun 1932Box 3 \ 4  04-page061
Technical memorandum confirming a phone conversation about modifications to the Bensport engine, including stroke reduction and supercharger placement.28th Jun 1932Box 3 \ 4  04-page062
Technical memo discussing engine component layout, gearbox positioning, and design alternatives for a chassis.15th Jun 1932Box 3 \ 4  04-page063
Parts for the 'Bensport' project, clarifying the non-use of the Peregrine front axle and requesting spring specifications.15th Jun 1932Box 3 \ 4  04-page064
Proposed modifications to the Bensport Engine to reduce critical vibration.30th Jun 1932Box 3 \ 4  04-page065
List of six points comparing design and material choices, such as aluminium versus cast iron, for engine construction.30th Jun 1932Box 3 \ 4  04-page066
Proposed changes to the 'Bensport' engine size in relation to the 'Peregrine' engine and racing regulations.1st Jul 1932Box 3 \ 4  04-page067
Engine capacity modifications and design considerations for the 'Bensport' model.2nd Jul 1932Box 3 \ 4  04-page068
Proposing to increase the Bensport engine capacity to 2290cc, considering competition rating and tax implications.4th Jul 1928Box 3 \ 4  04-page069
Design specifications for the Peregrine and Bensport engines, focusing on shared components and supercharging.4th Jul 1932Box 3 \ 4  04-page070
Design points and modifications for the Bensport Engine.7th Jul 1932Box 3 \ 4  04-page071
Modifications and considerations for a supercharger, engine position, clutch pit, and fan.7th Jul 1932Box 3 \ 4  04-page072
The bore and stroke dimensions for the Peregrine and Bensport engines.7th Jul 1932Box 3 \ 4  04-page073
Decrease of the Peregrine engine stroke to ensure parts interchangeability with the Bensport engine.8th Jul 1932Box 3 \ 4  04-page074
Engine modifications, fan drive, and clearance for the Bensport model.12th Jul 1932Box 3 \ 4  04-page075
Proposals for the engine stroke, crankshaft, and other components for the Peregrine and Bensport models.13th Jul 1932Box 3 \ 4  04-page076
Technical notes discussing the change mechanism, rear axle, supercharged engine testing, and camshaft drive design.13th Jul 1932Box 3 \ 4  04-page077
Design issues with a supercharger drive and steering box fouling, which is halting chassis and body work.15th Jul 1932Box 3 \ 4  04-page078
Strongly worded internal memo objecting to the tone and content of a previous communication regarding design disagreements.19th Jul 1932Box 3 \ 4  04-page079
Comparing the 'Peregrine' and 'Bensport' engines based on road and test bed experience.19th Jul 1932Box 3 \ 4  04-page080
Supercharged car design, comparing front vs side blower positions and the 'Peregrine' vs 'Bensport' engines.19th Jul 1932Box 3 \ 4  04-page081
From a conference detailing plans to create a workable mock-up of a supercharged Bensport engine and associated design considerations.22th Jul 1932Box 3 \ 4  04-page082
Technical note on the design of back axles for the Peregrine and Bentley sports models.21th Jul 1932Box 3 \ 4  04-page083
Notes of a conference held at West Wittering discussing the future 'Peregrine' car.21th Jul 1932Box 3 \ 4  04-page084
Conference notes discussing design decisions for the Bensport and Peregrine models, including axles, engines, and potential faults.22th Jul 1932Box 3 \ 4  04-page085
Increase in wheelbase for the 'BENSPORT' model due to supercharger placement.1st Aug 1932Box 3 \ 4  04-page086
Progress report on the Bensport chassis, detailing challenges with the engine, supercharger, and fan drive design.13th Aug 1932Box 3 \ 4  04-page087
Revised 'Bensport Layout' drawing, detailing unchanged parts and a new engine position.18th Aug 1932Box 3 \ 4  04-page088
Sending a schematic for a Bensport layout with an overhead camshaft engine.1st Aug 1932Box 3 \ 4  04-page089
Engine performance and design from the T.T. race, focusing on Riley, Alfa, and M.G. cars.24th Aug 1932Box 3 \ 4  04-page090
Engine options for the T.T. Race, comparing the Bensport and Riley models.31th Aug 1932Box 3 \ 4  04-page091
List of components and instructions for the BENSPORT project, detailing parts for Derby and Peregrine.9th Sep 1932Box 3 \ 4  04-page092
Status report listing outstanding sections and details awaiting a ruling on vehicle components.9th Sep 1932Box 3 \ 4  04-page093
Outstanding items for the 'Bensport' project, including steering and engine components.9th Sep 1932Box 3 \ 4  04-page094
Expressing concerns about the S.U. carburetter's reliability and potential fire risk on the 'bensport' engine.1st Sep 1932Box 3 \ 4  04-page095
The design progress and issues found during preliminary testing for the Bensport project.21th Sep 1932Box 3 \ 4  04-page096
Preliminary results of fitting a supercharger to a Peregrine engine.30th Sep 1932Box 3 \ 4  04-page097
Difficulties and considerations of using superchargers on their engines.9th May 1932Box 3 \ 4  04-page098
Continued report on a proposed J.I. engine car, discussing its performance, costs, and market strategy.1st Jan 1932Box 3 \ 4  04-page099
Proposing the use of the J.1. engine in the Bensport chassis, with performance comparisons.6th Oct 1932Box 3 \ 4  04-page100
Engine and starter motor modification requirements, including crankcase, flywheel, and oil system details.6th Oct 1932Box 3 \ 4  04-page101
Strategy for gaining approval to put a J.1 engine into a Bensport chassis.7th Oct 1932Box 3 \ 4  04-page102
Engine options for the 'Bensport' model, comparing the J.1. engine with a supercharged Peregrine.24th Oct 1932Box 3 \ 4  04-page103
Blower design, comparing Roots type, drive mechanisms, and gear configurations.24th Oct 1932Box 3 \ 4  04-page104
Modifications for the Bensport gearbox and J.I. engine, focusing on clutch, flywheel, and engine mounting.24th Oct 1932Box 3 \ 4  04-page105
Technical note on the requirement for a flexible exhaust connection due to a 'flappy' engine mounting.24th Oct 1932Box 3 \ 4  04-page106
Progress report on the 'Peregrine' and 'Bensport' projects, detailing chassis modifications and engine development issues.25th Oct 1932Box 3 \ 4  04-page107
Pressing for more information to fix a completion date for the first chassis.25th Oct 1932Box 3 \ 4  04-page108
Progress report on the Peregrine and Bensport projects, detailing testing, modifications, and production readiness.26th Oct 1932Box 3 \ 4  04-page109
Status update on the completion of a car body and gearbox for a Bensport model.26th Oct 1932Box 3 \ 4  04-page110
Letter discussing modifications to the J.I. engine for a Bensport application, including details on the starter ring, flywheel, and radiator.26th Oct 1932Box 3 \ 4  04-page111
Note regarding ground clearance, the crankcase design, and the need to raise the chassis or transmission line.26th Oct 1932Box 3 \ 4  04-page112
Responding to technical queries on the Bensport J.1 model, covering engine mounting, fuel system, and body modifications.27th Oct 1932Box 3 \ 4  04-page113
Fragment discussing the reduction of wind resistance.27th Oct 1932Box 3 \ 4  04-page114
Blueprints and design modifications for the Bensport J.1 unit.29th Oct 1932Box 3 \ 4  04-page115
Future development, production, and potential modifications for the Bensport engine.2nd Nov 1932Box 3 \ 4  04-page116
The revised layout for fitting a J. 1. engine into a Bensport frame, involving a raised frame and modified front axle.4th Nov 1932Box 3 \ 4  04-page117
Merits of using the J.I versus the J.II engine for the new Bentley 'Bensport' car.14th Nov 1932Box 3 \ 4  04-page118
Merits of using a new unproven engine unit versus a tested and proven one for the Bentley market.11th Nov 1932Box 3 \ 4  04-page119
Modifications for fitting an existing J.1 engine unit into the first Bensport chassis.8th Nov 1932Box 3 \ 4  04-page120
Urgent commencement of the Bensport chassis project, potential delays, and the competitive need for its completion.8th Nov 1932Box 3 \ 4  04-page121
Comparing the 'Bensport' car with a new 8-cylinder Ford and discussing the J.1 engine's suitability.11th Nov 1932Box 3 \ 4  04-page122
Outlining the plan and component references for building a Bensport chassis.8th Nov 1932Box 3 \ 4  04-page123
Sourcing and fitting of brakes, suspension, and engine components for a chassis.8th Nov 1932Box 3 \ 4  04-page124
Meeting notes detailing the component specifications for the Bensport J.1 chassis.9th Nov 1932Box 3 \ 4  04-page125
List of specifications and modifications for components of the J.1 engine.9th Nov 1932Box 3 \ 4  04-page126
Specification sheet detailing the design and components for a new engine, including the fan, oil system, and exhaust.9th Nov 1932Box 3 \ 4  04-page127
Design and status of various vehicle components.9th Nov 1932Box 3 \ 4  04-page128
Specification for wire fittings, stating the standard 20/25 ignition coil will be used.10th Nov 1932Box 3 \ 4  04-page129
Dimensional change for the engine position on the Bensport J.1 chassis.15th Nov 1932Box 3 \ 4  04-page130
The sections of drawing LeC.3267 for the Bensport J.1. Engine.17th Nov 1932Box 3 \ 4  04-page131
Modifications for an Experimental Bensport Chassis using an existing Japan 1 unit.19th Nov 1932Box 3 \ 4  04-page132
Additions to a chassis drawing, the brake servo, and the installation of the power unit.19th Nov 1932Box 3 \ 4  04-page133
And correcting specifications for the body and frame of the first Bensport car.25th Nov 1932Box 3 \ 4  04-page134
Design review and update memorandum on vehicle components including springs, steering, bonnet, radiator, and dashboard.25th Nov 1932Box 3 \ 4  04-page135
Specification list for vehicle components including axles, wheels, steering tubes and crossmembers.25th Nov 1932Box 3 \ 4  04-page136
Specification sheet detailing various components and sourcing for a car build.25th Nov 1932Box 3 \ 4  04-page137
Concluding page of a specification anticipating trouble mounting a body from Messrs Park Ward.29th Nov 1932Box 3 \ 4  04-page138
More advanced print of the Experimental Bensport J.1. Chassis, noting specific features like pedal plates, levers, and brake ropes.29th Nov 1932Box 3 \ 4  04-page139
Status update on outstanding design jobs for the Peregrine and Bensport models.1st Dec 1932Box 3 \ 4  04-page140
Status update on the progress of Engine Torque Arms and Tachometer Drive.1st Nov 1932Box 3 \ 4  04-page141
Arrangement of the experimental Bensport J.1. chassis and its brake system.3rd Dec 1932Box 3 \ 4  04-page142


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