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
'booming' in Phantom II models, relating to sub-frame versus direct-on-frame body construction.27th Apr 1931Box 14 \ 8  Scan301
'Jellying' issue, discussing the stiffening of vertical side members.28th Apr 1931Box 14 \ 8  Scan302
Confirming the dispatch and modification of a front dumb iron with a bumper pad.5th May 1931Box 14 \ 8  Scan303
Frame distortion tests measuring the effect of engine mounting on torsional frame stiffness and front end jellying.29th May 1931Box 14 \ 8  Scan304
Vehicle chassis jellying, damping, and engine mounting tests on various car models.29th May 1931Box 14 \ 8  Scan305
Series of five graphs comparing frame deflection angle against torque under various test conditions.28th May 1931Box 14 \ 8  Scan306
From the Print Room showing a date stamp.30th May 1931Box 14 \ 8  Scan307
Designs and testing procedures for deeper and stiffer chassis frames.4th Jul 1931Box 14 \ 8  Scan308
Arrangements to test three 40/50 cars without sub-frames.13th Jul 1931Box 14 \ 8  Scan309
Outlining five suggestions for producing and testing deeper frame side members for the P.2 model.13th Jul 1931Box 14 \ 8  Scan310
The trial of cars without subframes, detailing the positive results for the first car (31-GX) after 6,460 miles of continental use.10th Oct 1931Box 14 \ 8  Scan311
Removal of subframes for economy, referencing the report on 31-GX and Springfield's production.3rd Oct 1931Box 14 \ 8  Scan312
Record of a telephone conversation discussing balance weights, exhaust pipe failures, and frame fittings for Phantom II and 20/25 HP models.22th Oct 1931Box 14 \ 8  Scan313
Continued necessity of subframes due to a new engine mounting system.5th Nov 1931Box 14 \ 8  Scan314
Modified front and rear dumb irons for fitting bumpers to L.H. P.2 cars.10th Nov 1931Box 14 \ 8  Scan315
Experimental deeper side members and cross members for the Phantom II chassis.11th Nov 1931Box 14 \ 8  Scan316
Lack of experience with diamond mounting on car bodies not built on sub-frames for 40/50 and 20/25 models.16th Nov 1931Box 14 \ 8  Scan317
Improvements to the torsional stiffness of frames for larger cars.30th Nov 1931Box 14 \ 8  Scan318
Follow-up memo expressing concern over using diamond mounted engines on chassis with bodies that lack sub-frames.30th Nov 1931Box 14 \ 8  Scan319
Diamond engine mounting and frame stiffness on Phantom 1 and Phantom II cars.1st Dec 1931Box 14 \ 8  Scan320
The schemes for deeper side members for the Phantom II frame construction.8th Dec 1931Box 14 \ 8  Scan321
Urgent memo requesting the method for building a chassis with deeper side members.21th Dec 1931Box 14 \ 8  Scan322
Use of sub-frames on the 40/50 HP chassis, comparing rigidity and 'jellying' on two specific cars.19th May 1932Box 14 \ 8  Scan323
Requesting a decision on sub-frames for car bodies being ordered for the Paris and Olympia Shows.3rd Jun 1932Box 14 \ 8  Scan324
Urging an immediate decision on whether to build bodies with or without sub-frames for cars intended for the Paris Show.13th Jun 1932Box 14 \ 8  Scan325
The decision to cease using subframes in future car models and to inspect existing cars without them.17th Jun 1932Box 14 \ 8  Scan326
Recommending to hold up F.11 material, pending an agreement to delete subframes on future 40/50 hp cars.17th Jun 1932Box 14 \ 8  Scan327
Recommendation to omit a sub-frame and mentioning specific car examples.17th Jun 1932Box 14 \ 8  Scan328
Cause and a potential solution for chassis 'jellying' by using a sub-frame.6th Jul 1932Box 14 \ 8  Scan329
Decision on whether to use subframes for the 40/50 HP chassis for show cars versus customer cars.8th Jul 1932Box 14 \ 8  Scan330
Requesting a reply regarding the potential abandonment of subframes on the 40/50-HP chassis.15th Jul 1932Box 14 \ 8  Scan331
Decision to delete the body subframe on the Phantom II chassis.18th Jul 1932Box 14 \ 8  Scan332
Note on subframes and a standardisation sheet sent for agreement.18th Aug 1932Box 14 \ 8  Scan333
Discontinuation of body subframes and seeking a timeline for implementation on the 40/50-HP chassis.21th Jul 1932Box 14 \ 8  Scan334
The plan to delete body subframes for the O.2 series and questioning completion for the N.2 series.11th Aug 1932Box 14 \ 8  Scan335
The supply and potential deletion of body subframes for N.2 and O.2 series chassis.11th Aug 1932Box 14 \ 8  Scan336
Persistent issue of radiator wing movement and frame 'jellying' on the Phantom II model.18th Aug 1932Box 14 \ 8  Scan337
Tests conducted on mounting the radiator to the engine for the Phantom II.30th Aug 1932Box 14 \ 8  Scan338
Discontinuation of supplying body subframes due to economic and standardization reasons.30th Aug 1932Box 14 \ 8  Scan339
Inquiry regarding the discontinuation of fitting body subframes on the 40/50 chassis.12th Sep 1932Box 14 \ 8  Scan340
The replacement of body subframes with body brackets after chassis 118-MS.14th Sep 1932Box 14 \ 8  Scan341
Proposal for the deletion of the body sub-frame to reduce cost and weight.18th Jul 1932Box 14 \ 8  Scan342
Standardisation of chassis parts.15th Oct 1932Box 14 \ 8  Scan343
Request to drill the subframe girders to attach lead weights for testing frame jellying.25th Oct 1932Box 14 \ 8  Scan344
List of parts and modifications for the 3rd and 4th crossmembers on the Phantom II chassis to permit wells in the rear floor.28th Jul 1933Box 14 \ 8  Scan345
List of parts no longer required and instructions regarding modifications to the 3rd and 4th crossmembers.28th Jul 1933Box 14 \ 8  Scan346
Modifications to the frontal appearance of the Phantom II, specifically regarding a dropped front crossmember.5th Jan 1934Box 14 \ 8  Scan347
Expressing concern over proposed changes to the starting handle mechanism, which requires disconnecting the thermostat control.10th Jan 1934Box 14 \ 8  Scan348
From Sg. to E. with suggestions for camouflaging a radiator and shutters.10th Jan 1934Box 14 \ 8  Scan349
Modification to lower the stepirons by two inches on the 25 HP and P.2 models.14th Mar 1934Box 14 \ 8  Scan350
Standardisation of a concealed front cross member, headlamp mounting, and front apron.1st May 1934Box 14 \ 8  Scan351
Cost estimation for a parts standardisation modification on the 'S' series, including equipment and scrap values.15th May 1934Box 14 \ 8  Scan352
Standardisation of parts for creating wells in the rear floorboards to obtain lower seating.12th Jun 1934Box 14 \ 8  Scan353
Estimated cost for extra jigs, tools, and equipment for the 'S2' series.25th May 1934Box 14 \ 8  Scan354
Standardising the dropped front crossmember for the 25-HP and Bentley models.11th Jul 1934Box 14 \ 8  Scan355
Test results for Phantom II frame distortion under varying loads.18th Mar 1935Box 14 \ 8  Scan356
Description of a frame test setup with applied loads.18th Mar 1935Box 14 \ 8  Scan357
Modifications to the radiator suspension and cross member.3rd Nov 1925Box 15 \ 1  Scan001
Radiator with integral shutters and comparing it to the previous 'W' series.1st Nov 1925Box 15 \ 1  Scan002
Alternative radiator suspension design using spherical supports.7th Nov 1925Box 15 \ 1  Scan003
Front cross member and radiator suspension, referencing schematic N.sch.2103 and comparing it to EAC.8.12th Oct 1925Box 15 \ 1  Scan004
Status of experimental chassis 7-EX and 12-EX, concerning parts fitting and radiator standardisation.25th Aug 1926Box 15 \ 1  Scan005
Overheating tests in France, comparing fan and radiator positions on experimental cars 8-EX and 12-EX.1st Sep 1926Box 15 \ 1  Scan006
Cooling system performance of the 12-EX model and potential modifications.30th Sep 1925Box 15 \ 1  Scan007
Feedback and proposed alterations to the radiator design on the 12-EX model.1st Oct 1926Box 15 \ 1  Scan008
Confirming a conversation about Standardisation Sheet No.7250 and radiators with integral shutters.1st Dec 1926Box 15 \ 1  Scan009
Standardization of Phantom radiators with integral shutters.16th Dec 1926Box 15 \ 1  Scan010
Standardisation proposal for a thermometer with an electrical contact to warn drivers of boiling water.22th Sep 1926Box 15 \ 1  Scan011
Car appearance improvements related to radiators, bonnets, number plates, and frame height.22th Dec 1926Box 15 \ 1  Scan012
Controversy over radiator thickness, bonnet length, and the optimal diameter of radiator tubes.13th Jan 1927Box 15 \ 1  Scan013
Proposed design changes to a 40/50 bonnet and radiator.15th Jan 1927Box 15 \ 1  Scan014
Appearance of an integral radiator, enclosing prints and suggesting modifications to a sales model for approval.25th Jan 1927Box 15 \ 1  Scan015
Design modifications for radiators with integral shutters, including a table comparing the front radiator area of various car models.25th Jan 1927Box 15 \ 1  Scan016
Comparison of radiator designs focusing on tube dimensions and their effect on total cooling area and efficiency.28th Jan 1927Box 15 \ 1  Scan017
Dimensional corrections for the Phantom Radiator tank and filler size.28th Jan 1927Box 15 \ 1  Scan018
Revised radiator and bonnet design, suggesting the creation of a physical prototype.28th Jan 1927Box 15 \ 1  Scan019
Design modifications and alternative proposals for the Phantom radiator and bonnet.2nd Feb 1927Box 15 \ 1  Scan020
Proposed modifications to radiator and bonnet proportions, pending approval.5th Feb 1927Box 15 \ 1  Scan021
Improvements to the Phantom radiator and bonnet, focusing on integral shutters.10th Feb 1927Box 15 \ 1  Scan022
Modifications to bonnet fasteners, locks, and radiators for the 20 HP and 7-EX models.14th Feb 1927Box 15 \ 1  Scan023
Query regarding the unusually effective cooling of the EAC-8 (12-EX) engine and radiator following a trip to the Alps.14th Feb 1927Box 15 \ 1  Scan024
Difficulty of fitting a raised radiator and bonnet to car EAC.7 and proposing solutions.2nd Feb 1927Box 15 \ 1  Scan025
Feasibility of reducing radiator thickness for the Phantom EAC. 8 Type model.26th Feb 1927Box 15 \ 1  Scan026
Design specifications for a radiator with integral shutters for the 40/50HP Standard Phantom Chassis.9th Mar 1927Box 15 \ 1  Scan027
Design proposal for a 40/50 Phantom radiator with integral shutters, compared to a production version with separate shutters.8th Mar 1927Box 15 \ 1  Scan028
Faded document with a red 'Print Room' stamp from Derby.9th Mar 1927Box 15 \ 1  Scan029
Proposed modifications to the EAC. 8 radiator, discussing tube dimensions, cooling area, and bonnet height adjustments.17th Mar 1927Box 15 \ 1  Scan030
Status and filing of radiator drawing N.sch.2371.7th Apr 1927Box 15 \ 1  Scan031
Tests on fan positioning for improved cooling efficiency on the 12-EX and its proposed application to standard Phantom cars.25th Apr 1927Box 15 \ 1  Scan032
Change to narrower radiator tubes from 8mm to 7mm.11th Nov 1927Box 15 \ 1  Scan033
Alternative radiator suspension schemes for the 12-EX model, using a 'Ferobestos' bush type.22th Nov 1927Box 15 \ 1  Scan034
Design features and improvements for the EAC.7 vehicle, including the radiator and engine suspension.9th Jan 1928Box 15 \ 1  Scan035
Potential improvements to a vehicle's throttle cooling, induction, braking, and body design.4th Jul 1928Box 15 \ 1  Scan036
Technical review of the flexibility, stiffness and mounting of steering columns, scuttles, and dashboards for 20 HP and 40 HP models.4th Jul 1928Box 15 \ 1  Scan037
Modifications to the Phantom's radiator, bonnet, and dashboard for the G.2.B. series chassis.7th May 1928Box 15 \ 1  Scan038
Impact of a higher radiator on driver visibility for the Phantom model.8th May 1928Box 15 \ 1  Scan039
Proposals for a higher radiator, bonnet, and dash for the Phantom model.11th May 1928Box 15 \ 1  Scan040
Clarifying confusion over the 'E' steering position for the Phantom model, detailing a lower column design.11th May 1928Box 15 \ 1  Scan041
Rebuilding of chassis 15-EX with an ordinary long frame and proposed new components.16th May 1928Box 15 \ 1  Scan042
Parts for a Phantom Chassis experiment, specifically for an F-2-B Series.24th May 1928Box 15 \ 1  Scan043


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