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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Visit to Vauxhall's regarding Buick engine power improvements for the Phoenix engine unit.28th Sep 1937Box 111 \ 2  scan0241
Engine design elements like sump joints, con rod-crank ratios, and pistons.28th Sep 1937Box 111 \ 2  scan0242
Technical report discussing cylinder bore wear, piston material, and carburation tests.28th Sep 1937Box 111 \ 2  scan0243
Conversation with Maurice Olley regarding wishbone suspension and frame stiffness.28th Sep 1937Box 111 \ 2  scan0244
Blueprint showing a cross-section of a Buick piston and combustion chamber.28th Sep 1937Box 111 \ 2  scan0245
Photograph of an engine piston, showing its crown, ring grooves, and wrist pin boss.2nd Oct 1934Box 111 \ 2  scan0246
Memo listing four additional items discussed during a visit to Vauxhall.2nd Oct 1934Box 111 \ 2  scan0247
Comparing the costs of manufacturing a sump using die-cast aluminium versus pressed steel.28th Sep 1937Box 111 \ 2  scan0248
Cost comparison between pressing and die-casting methods for sump production.28th Sep 1937Box 111 \ 2  scan0249
Engine sump design, comparing pressed steel versus casting and outlining the pros and cons of a modified design.28th Sep 1937Box 111 \ 2  scan0250
Appearance and cost-effectiveness of pressed steel sumps versus aluminium ones.28th Sep 1937Box 111 \ 2  scan0251
Design implications of spare wheel placement for the 'Phoenix' project.30th Sep 1937Box 111 \ 2  scan0252
Changing the designation 'Phoenix' to 'Bentley 50'.13th Oct 1937Box 111 \ 2  scan0253
Directive to reduce material costs for the Bentley 50 model by 30% to ensure a satisfactory balance sheet.5th Nov 1937Box 111 \ 2  scan0254
Need to decrease material costs by 30% for the Bentley 50 car.5th Nov 1937Box 111 \ 2  scan0255
Proposed change to the 'Phoenix' project's name and dimensions and its policy implications for the Bentley and Rolls-Royce brands.12th Nov 1937Box 111 \ 2  scan0256
The branding and market implications of a new car, codenamed Phoenix, weighing whether to call it a Bentley or a Rolls-Royce.12th Nov 1937Box 111 \ 2  scan0257
The branding, production, and market potential for a new car model codenamed Phoenix.12th Nov 1937Box 111 \ 2  scan0258
Product strategy for introducing the Phoenix model and a replacement for the Wraith.12th Nov 1937Box 111 \ 2  scan0259
Summary of conclusions regarding branding, production, and market strategy for a new model.12th Nov 1937Box 111 \ 2  scan0260
Directive to testers to ensure work on Bentleys is instructed on Phoenix or B.III order numbers.16th Nov 1937Box 111 \ 2  scan0261
Specification details for the Bentley 50 engine following a planning conference.17th Nov 1937Box 111 \ 2  scan0262
Design considerations for the water pump, dynamo, fan, distributor, camshaft, and timing gears.17th Nov 1937Box 111 \ 2  scan0263
Design specifications for engine components including the oil pump, sump, and starter motor.17th Nov 1937Box 111 \ 2  scan0264
Engine design specifications and a project programme timeline.17th Nov 1937Box 111 \ 2  scan0265
Recommendation that all materials should be costed before ordering for the Works to avoid needless expenditure.17th Nov 1937Box 111 \ 2  scan0266
Project memo listing drawings and giving design instructions for the Bentley 50 Engine.18th Nov 1937Box 111 \ 2  scan0267
The Phoenix Order Number.20th Nov 1937Box 111 \ 2  scan0268
Brief history and comparison of the Bentley III and Bentley 50 (Phoenix) projects.25th Nov 1937Box 111 \ 2  scan0269
Comparison of specifications for the B.III and B.50 models, detailing a project to modify the B.III frame.25th Nov 1937Box 111 \ 2  scan0270
Comparison of Project No.4 (chassis B.III vs B.50) and Project No.5 proposals, detailing specifications and modifications.25th Nov 1937Box 111 \ 2  scan0271
Comparison of chassis specifications for B.III, B.50, and 4¼ Wraith III models.25th Nov 1937Box 111 \ 2  scan0272
Material cost breakdown for the Bentley 50 chassis.2nd Dec 1937Box 111 \ 2  scan0273
Request for an estimate on potential material savings for the B.50 over the existing Bentley.2nd Dec 1937Box 111 \ 2  scan0274
Confidential memo comparing material and wages costs with Rover to set a cost target for a £900 Bentley car.4th Dec 1937Box 111 \ 2  scan0275
Cost comparison analysis of wages to material ratios for Rover and Bentley 12.HP chassis production.4th Dec 1937Box 111 \ 2  scan0276
Price comparison list for automotive electrical components, showing existing versus new material and labour costs.6th Dec 1937Box 111 \ 2  scan0277
Covering note for blueprint PD.64 showing the front end of the B.50 engine, including the slipper damper, timing gears, and camshaft.6th Dec 1937Box 111 \ 2  scan0278
Recent development work on a high power engine head.14th Dec 1937Box 111 \ 2  scan0279
Performance comparison between two cylinder head designs, No. 4 and No. 5 (Phoenix Type), for the Bentley 50 Type engine.13th Dec 1937Box 111 \ 2  scan0280
Engine smoothness and turbulence, with a graph comparing ignition advance curves for two high power head designs.13th Dec 1937Box 111 \ 2  scan0281
Power curve comparison at constant detonation for different cylinder heads, using a 50/50 paraffin-shell fuel mixture.13th Dec 1937Box 111 \ 2  scan0282
Engine detonation, percentage power loss with respect to No.4 head, and valve timing tests.13th Dec 1937Box 111 \ 2  scan0283
Comparison of different valve timing configurations for a high power engine head, illustrated with a performance graph.1st Dec 1937Box 111 \ 2  scan0284
The effect of exhaust valve lift on engine performance, including a comparative power graph.13th Dec 1937Box 111 \ 2  scan0285
Exhaust valve lift and mechanical failures, including cylinder head collapse and issues with exhaust valves and seats.13th Dec 1937Box 111 \ 2  scan0286
Decision to use the Wraith engine for the Bentley 50 chassis.17th Dec 1937Box 111 \ 2  scan0287
Listing outstanding projects for the B.3 and B.50 car models.23th Dec 1937Box 111 \ 2  scan0288
Proposed cost-saving modifications to the B.50 model, focusing on the rear axle, dashboard, brake drums, and radiator.10th Jan 1938Box 111 \ 2  scan0289
Specification and programme for the Bentley 50 model, including preliminary road test details and production timeline.13th Jan 1938Box 111 \ 2  scan0290
Specification and programme for the Bentley 50, detailing preliminary road tests and component changes.13th Jan 1938Box 111 \ 2  scan0291
Major components for the 2nd Bentley III and 1st Bentley 50 cars.18th Jan 1938Box 111 \ 2  scan0292
Conference notes on the design and production requirements for the B.III and B.50 experimental models.26th Jan 1938Box 111 \ 2  scan0293
Design of an electrical oil level indicator for the Bentley 50, proposing an alternative arrangement.31th Jan 1938Box 111 \ 2  scan0294
Preliminary specification document concerning the Bentley 50 chassis.5th Feb 1938Box 111 \ 2  scan0295
Component list for the 'G' Section of the Bentley 50 model, with references and notes.5th Feb 1938Box 111 \ 2  scan0296
Parts list for the Bentley 50, detailing differences and commonalities with the Bentley lll, Wraith lll, and other models.5th Feb 1938Box 111 \ 2  scan0297
Continued index for 'D' Section, listing various electrical components and their applications.5th Feb 1938Box 111 \ 2  scan0298
Parts list index for 'F' Section, detailing components and their vehicle application.5th Feb 1938Box 111 \ 2  scan0299
Index page detailing component sections including pressure piping, tools, spares, and a side spare wheel carrier.5th Feb 1938Box 111 \ 2  scan0300
Parts list for 'E' Section of the Bentley 50, detailing component interchangeability with other models.5th Feb 1938Box 111 \ 2  scan0301
List of components for Section 'E', detailing their titles and associated vehicle models or modifications.24th Feb 1938Box 111 \ 2  scan0302
Specification document for the first experimental B.50 car, detailing required designs and parts.24th Feb 1938Box 111 \ 2  scan0303
Car specifications regarding wheels and tyres, and the urgency of parts lists.24th Feb 1938Box 111 \ 2  scan0304
List of Bentley 111 sections and parts applicable to the Bentley 50 model.2nd Mar 1938Box 111 \ 2  scan0305
List of parts categorized by department, section number, title, and L.O.P. number.2nd Mar 1938Box 111 \ 2  scan0306
Secret memorandum discussing the specification and programme for the B.50 model, including delays and proposed parts.4th Mar 1938Box 111 \ 2  scan0307
Specifications for wheels, springs, and axles for the B.50 and B.III car models.4th Mar 1938Box 111 \ 2  scan0308
Design modifications for the Bentley 50 engine cylinder and head, including a bore increase.4th Mar 1938Box 111 \ 2  scan0309
Policy discussion on chassis and power plant design, comparing the B.50 unit with the Phantom III engine and other alternatives.5th Mar 1938Box 111 \ 2  scan0310
Future engine design strategy, comparing the redesign of the Phantom III unit against new concepts and market considerations.5th Mar 1938Box 111 \ 2  scan0311
Development expenditure, production, and pricing for a complete car, with a reference to competitor Vauxhalls.5th Mar 1938Box 111 \ 2  scan0312
List of 19 proposed design features and modifications for an engine.5th Mar 1938Box 111 \ 2  scan0313
The oil filler, engine breather, and oil dipstick for the Bentley 50 model.10th Mar 1938Box 111 \ 2  scan0314
Specification and programme timeline for the Bentley 50.11th Mar 1938Box 111 \ 2  scan0315
Specification and programme update for the Bentley 50 project, detailing timelines for the gearbox, dashboard, and bonnet.10th Mar 1938Box 111 \ 2  scan0316
Modifications to the cylinder head of the Bentley 50 Engine.11th May 1938Box 111 \ 2  scan0317
Revision of the programme for the Bentley 50 chassis and measures to ensure schedule adherence.14th Mar 1938Box 111 \ 2  scan0318
Calling a conference to fix a completion date for the Bentley 50 chassis.16th Mar 1938Box 111 \ 2  scan0319
Specification and programme document outlining the development timeline for the Bentley 50 model components.10th Mar 1938Box 111 \ 2  scan0320
Milestone chart tracking the design and planning progress of the B50 engine project.24th Mar 1938Box 111 \ 2  scan0321
Study on crankshaft length as the controlling factor for a straight 8-cylinder 3.5' bore engine.24th Mar 1938Box 111 \ 2  scan0322
'Bentley 50', confirming agreement to conference minutes and discussing completion timelines.25th Mar 1938Box 111 \ 2  scan0323
Confirming details for a B.50 car fitted with a Straight 8 engine.28th Mar 1938Box 111 \ 2  scan0324
Bearing width and water spacing for a Straight 8 Engine with a 3.5' bore.28th Mar 1938Box 111 \ 2  scan0325
Modifications to the Bentley lll and Bentley 50 production programme.5th Apr 1938Box 111 \ 2  scan0326
Modifications to programmes for Bentley lll and Bentley 50.5th Apr 1938Box 111 \ 2  scan0327
Programme outlining the development and build status for the Bentley 111 model.5th Apr 1938Box 111 \ 2  scan0328
Production programme and timeline for the Bentley 50 model.5th Apr 1938Box 111 \ 2  scan0329
Production programme and timeline for the Bentley 50 model.5th Apr 1938Box 111 \ 2  scan0330
Introduction of Jaguar-style traffic indicators and a reversing light on the Bentley 50 chassis.6th Apr 1938Box 111 \ 2  scan0331
Listing design schemes to complete the major sections of project 1.B.50.7th Apr 1938Box 111 \ 2  scan0332
Dispatch of blueprints for the crankcase and bearings of a Bentley 50 Chassis.11th Apr 1938Box 111 \ 2  scan0333
B.50 specification sheet detailing instrument, battery, wiring, and starter motor components.14th Apr 1938Box 111 \ 2  scan0334
Parts list for Section D, detailing electrical components and their specifications.14th Apr 1938Box 111 \ 2  scan0335
List of vehicle components and parts with corresponding operation numbers and usage notes.14th Apr 1938Box 111 \ 2  scan0336
List of parts and specifications for Section E, covering water pumps, oil systems, fans, and radiators.14th Apr 1938Box 111 \ 2  scan0337
Specification sheet listing vehicle sections, part numbers, and build details.14th Apr 1938Box 111 \ 2  scan0338
Specification sheet detailing various vehicle components and their arrangements under Sections F and G.14th Apr 1938Box 111 \ 2  scan0339
List of transmission, drivetrain, and braking system components with their corresponding part numbers and notes.14th Apr 1938Box 111 \ 2  scan0340


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