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
Telegram received by telephone detailing a sheared distributor pin.23th Feb 1938Box 108 \ 1  scan0411
Ongoing servo judder issues with the brakes on a 25/30 HP model.24th Feb 1938Box 108 \ 1  scan0412
Troubleshooting of electrical equipment, specifically coil connections and spark plug issues.24th Feb 1938Box 108 \ 1  scan0413
Wraith car performance in France, axle ratios, weight, and future design alternatives.24th Feb 1938Box 108 \ 1  scan0414
Blueprint comparing the 'C' Steering Enclosed Limousines of the Wraith III and 25/30HP models.22th Feb 1938Box 108 \ 1  scan0415
Disagreement over Wraith gear ratio figures and the dispatch of alternative wheels for testing.24th Mar 1938Box 108 \ 1  scan0416
Cause and cure for 'Wraith Servo Judders'.24th Feb 1938Box 108 \ 1  scan0417
Persistent servo judders and sticking brake issues on a 25/30 HP model.24th Feb 1938Box 108 \ 1  scan0418
Investigations into valve gear issues and noise problems on a 25/30 HP car.25th Feb 1938Box 108 \ 1  scan0419
Page 2 of a letter discussing engine noise, valve bounce, and a request for a spare filter for a Bentley.25th Feb 1938Box 108 \ 1  scan0420
New mark on the 25/30 HP gearbox oil dipstick and adjusting the oil level.25th Feb 1938Box 108 \ 1  scan0421
New mark on the gearbox oil dipstick for a 25/30 HP model.25th Feb 1938Box 108 \ 1  scan0422
Suggestion to improve air carburation by turning the air silencer, requesting temperature data and information on plug gaps.25th Feb 1938Box 108 \ 1  scan0423
Issues with a Bakelite filler cap, including washers and water levels.25th Feb 1938Box 108 \ 1  scan0424
Trial of new tyres from the British Tyre & Rubber Co. after a price dispute with the India Tyre Co.25th Feb 1938Box 108 \ 1  scan0425
Solutions for issues with tyres, engine mounts, distributor drives, valve clearance, and servo jaggers.26th Feb 1936Box 108 \ 1  scan0426
Reports on 'servo jaggers' for the Wraith model before its production.26th Feb 1938Box 108 \ 1  scan0427
The positioning of a thermometer bulb on the cylinder head to avoid fouling the distributor.26th Feb 1938Box 108 \ 1  scan0428
Telegram regarding lost clearance being attributed to sinkage rather than stretch or bounce.27th Feb 1938Box 108 \ 1  scan0429
Brake system adjustments and proportions for Bentley and Wraith models, including parts for testing.28th Feb 1938Box 108 \ 1  scan0430
Brake judder solutions and addressing excessive front braking on the Wraith model.28th Feb 1938Box 108 \ 1  scan0431
Exhaust valve stretch and sinkage for a 25/30 HP engine, including valve spring measurements.28th Feb 1938Box 108 \ 1  scan0432
Recent vehicle testing results including tyres, servo judders, cold weather performance, and snow-related issues.28th Feb 1938Box 108 \ 1  scan0433
Fitting a rubber on-stop for the accelerator pedal of a 25/30 HP car, with recommendations for a more robust design for production.28th Feb 1938Box 108 \ 1  scan0434
The dispatch of parts by air mail to I.M. Waller in France.28th Feb 1938Box 108 \ 1  scan0435
Typed communication regarding an inspection of Wraith servo components.28th Feb 1938Box 108 \ 1  scan0436
Broken downtake pipe on a 25/30 HP exhaust system after 7,405 miles.28th Feb 1938Box 108 \ 1  scan0437
Brake servo judders experienced after fitting 40° servo cams.28th Feb 1938Box 108 \ 1  scan0438
The oil consumption and a tapping engine noise for an Aero Service Car, model 25 G.VI.22th Aug 1941Box 108 \ 1  scan0439
The servicing location for an Aero Service Car, chassis 25.G.VII.26th Aug 1941Box 108 \ 1  scan0440
Release status and modifications for components of the Production Wraith chassis.1st Feb 1938Box 108 \ 2  scan0001
Alterations and issues with Bijur piping, steering, gearbox, battery, and ignition coil.1st Feb 1938Box 108 \ 2  scan0002
Production delays and schedule issues for the Wraith model.1st Feb 1938Box 108 \ 2  scan0003
Production modifications and status updates for various components of the Wraith chassis.1st Feb 1938Box 108 \ 2  scan0004
Outlining necessary alterations and pending tests on various chassis components.1st Feb 1938Box 108 \ 2  scan0005
Test report on the Wraith III engine gears, detailing running times and backlash measurements.3rd Feb 1938Box 108 \ 2  scan0006
Outstanding materials and tooling for the production of Wraith models.3rd Feb 1938Box 108 \ 2  scan0007
Design changes and production releases for various vehicle components.28th Jan 1938Box 108 \ 2  scan0008
Status update memo on various car components and their release for production.28th Jan 1938Box 108 \ 2  scan0009
Reasons for holding up the release of specific vehicle components including steering, gearbox, battery, and ignition coil.3rd Feb 1938Box 108 \ 2  scan0010
Instructions for modifications to the Wraith III engine, concerning valve guides, oiling arrangements, and tappets.3rd Feb 1938Box 108 \ 2  scan0011
The status of material and tooling instructions for various Wraith III chassis components.4th Feb 1938Box 108 \ 2  scan0012
Progress report detailing required actions for various vehicle components, including the radiator, bonnet, and brakes.10th Jan 1937Box 108 \ 2  scan0013
Status report on tooling and material investigations for various vehicle components.10th Jan 1937Box 108 \ 2  scan0014
Material releases and specifications for a batch of twelve experimental production Wraith III cars.5th Feb 1938Box 108 \ 2  scan0015
Release instructions for various components for the Wraith III model.7th Feb 1938Box 108 \ 2  scan0016
Status update memo on the release of various vehicle components for production tooling and materials.7th Feb 1938Box 108 \ 2  scan0017
Status report on the production release of various vehicle components.7th Feb 1938Box 108 \ 2  scan0018
Status of various vehicle components including hubs, brakes, battery, ignition coil, and steering pivots.7th Feb 1938Box 108 \ 2  scan0019
The design and experimental issue of a gearbox extension stay for the Wraith III chassis.17th Feb 1936Box 108 \ 2  scan0020
Specification of parts required to bring Wraith car 28.G.V1 up-to-date.18th Feb 1938Box 108 \ 2  scan0021
List of fitting and modification instructions for various vehicle components, page 2.18th Feb 1938Box 108 \ 2  scan0022
List of modifications and specifications for vehicle components including pivot bearings, radiator, and water connections.18th Feb 1938Box 108 \ 2  scan0023
List of parts and modifications for road springs, shock dampers, and clutch.18th Feb 1938Box 108 \ 2  scan0024
Request to remove the inertia ring from the flywheel of 24.G.Vl.21th Feb 1938Box 108 \ 2  scan0025
Requesting an inertia ring be machined down in weight from 29 lbs to 20 lbs.21th Feb 1938Box 108 \ 2  scan0026
Decisions on the specifications and release of various parts for Production Wraiths.21th Feb 1938Box 108 \ 2  scan0027
List of release decisions and instructions for various vehicle components, page 2.21th Feb 1938Box 108 \ 2  scan0028
List of design updates and specifications for various vehicle components, page 3.21th Feb 1938Box 108 \ 2  scan0029
Component specifications for the distributor, rear axle, speedometer, and dynamo drive gear, including material release for the Wraith model.21th Feb 1938Box 108 \ 2  scan0030
The modification status and required upgrade specifications for Wraith cars.21th Feb 1938Box 108 \ 2  scan0031
Request to add two design items, an engine stay and an under bonnet lamp, to the specification for a Wraith Car.23th Feb 1938Box 108 \ 2  scan0032
List of suggested spares for a Wraith III.23th Feb 1938Box 108 \ 2  scan0033
Frame modifications and brake gear compatibility for Wraith cars.24th Feb 1938Box 108 \ 2  scan0034
Production decisions and corrections for a batch of 100 Wraith chassis sets.24th Feb 1938Box 108 \ 2  scan0035
Tie Rod scheme for the Wraith model, referencing a trial car.25th Feb 1938Box 108 \ 2  scan0036
Summary of a discussion on distributor failures, timing gear rattles, and engine periods on the Wraith model.1st Feb 1938Box 108 \ 2  scan0037
Wraith car (28.G.VI) being sent to the fitting shop due to a seized clutch.3rd Mar 1938Box 108 \ 2  scan0038
Small additions to the Wraith car brake specification.4th Mar 1938Box 108 \ 2  scan0039
Listing two required modifications for the Wraith car.4th Mar 1938Box 108 \ 2  scan0040
Bringing Wraith Car 25.G.VI up to date, including parts and a troublesome rear axle.4th Mar 1938Box 108 \ 2  scan0041
The desired ignition governor advance curve for the Wraith III model.4th Mar 1938Box 108 \ 2  scan0042
Instructions for bringing Wraith car 25.G.VI up to date, which includes rectifying rear axle oil seal squeaks.4th Mar 1938Box 108 \ 2  scan0043
Secret memo regarding oscillation issues in Wraith engines, proposing a comparative bench test against the 25/30 engine.4th Mar 1938Box 108 \ 2  scan0044
List of points requiring attention for the Wraith III Oil Level Indicator, part number E.CD.255.8th Mar 1938Box 108 \ 2  scan0045
Work order detailing repairs for Wraith car 28.G.VI, including engine, clutch, and ignition system work.9th Mar 1938Box 108 \ 2  scan0046
Instructions regarding suspension modifications for Wraith cars 25.G.V1 and 28.G.V1.9th Mar 1938Box 108 \ 2  scan0047
Summary of work reducing special parts for the Wraith III, detailing standard vs non-standard components.11th Mar 1938Box 108 \ 2  scan0048
Instructing work to be carried out on Wraith Car 28.G.VI, including replacing parts and safety checks.12th Mar 1938Box 108 \ 2  scan0049
Order for 100 sets of Oil Pipes & Fittings for the Wraith III chassis.14th Mar 1938Box 108 \ 2  scan0050
Secret memo regarding delays and outstanding drawing office instructions for the Wraith III chassis.16th Mar 1938Box 108 \ 2  scan0051
Replacing an R.R. ignition distributor with a Delco distributor on a Wraith car.16th Mar 1938Box 108 \ 2  scan0052
Outlining repair jobs for a Wraith car with engine issues.17th Mar 1938Box 108 \ 2  scan0053
Request to modify the drive and distributor unit on Wraith car 28.G.VI.18th Mar 1938Box 108 \ 2  scan0054
Follow-up memo requesting an update on Wraith Engines.21th Mar 1938Box 108 \ 2  scan0055
Urgent update to the Wraith III engine distributor spring drive.23th Mar 1938Box 108 \ 2  scan0056
Referring to a vibration mentioned in an attached report and a previous communication.23th Mar 1938Box 108 \ 2  scan0057
Requesting the removal of crankshaft balance weights and the refitting of a Delco distributor unit on a Wraith car.24th Mar 1938Box 108 \ 2  scan0058
The build of a spring drive for a Wraith III engine distributor.25th Mar 1938Box 108 \ 2  scan0059
Requesting engine revs at 80-85 mph for a car with a higher gear back axle.25th Mar 1938Box 108 \ 2  scan0060
Request to make up a modified Delco distributor spring drive for the Wraith model.25th Mar 1938Box 108 \ 2  scan0061
Engine modifications and parts required for car 27.G.VI.29th Mar 1938Box 108 \ 2  scan0062
Instructing the fitting of temporary steel diagonal stays to two Wraith cars for testing purposes.7th Apr 1938Box 108 \ 2  scan0063
Confirming a verbal request to revert to the original governor advance settings for the production Wraith III units.7th Apr 1938Box 108 \ 2  scan0064
Suggestion for modifying the initial setting of ignition distributors for Wraith and Bentley III models.12th Apr 1938Box 108 \ 2  scan0065
Test report detailing various faults found on car 25.G.Vl.20th Apr 1938Box 108 \ 2  scan0066
Secret memorandum authorising the release of a further 200 sets of Wraith Material.9th Apr 1938Box 108 \ 2  scan0067
Quantity and cost-effectiveness of ordering material sets for the Wraith model.8th Apr 1938Box 108 \ 2  scan0068
Blueprint detailing the design modifications for a strengthened main lever housing for the Wraith III model.14th Apr 1938Box 108 \ 2  scan0069
From the Iron Foundry regarding uneconomical production pattern equipment for the Wraith.22th Apr 1938Box 108 \ 2  scan0070


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