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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Letter from The Avon India Rubber Co Ltd offering new tyre covers for testing.16th Jun 1921Box 156 \ 3  scan0002
Letter to The Avon India Rubber Co. Ltd. regarding tyre testing on experimental cars.20th Jun 1921Box 156 \ 3  scan0003
Letter from the Avon India Rubber Co Ltd regarding tyre specifications and testing.27th Jun 1921Box 156 \ 3  scan0004
Letter from The Avon India Rubber Co. Ltd. discussing different tyre tread patterns and associated noise.27th Jun 1921Box 156 \ 3  scan0005
Letter from Avon India Rubber Co. Ltd. confirming an appointment for the following afternoon.4th Oct 1933Box 156 \ 3  scan0006
'Wor' to 'Hs' requesting a recommendation on Duo-Tread Tyres, with an attached letter from Avon India Rubber Co.4th Oct 1933Box 156 \ 3  scan0007
From 'C.' concerning an attached letter from Avon India Rubber Co. Ltd. about Duo-Tread Tyres.3rd Oct 1933Box 156 \ 3  scan0008
Letter from The Avon India Rubber Co. Ltd. offering their new Duo-Tread tyres for testing.27th Sep 1933Box 156 \ 3  scan0009
Arranging a test for a set of Dua-Tread Tyres.6th Oct 1933Box 156 \ 3  scan0010
The purchase of six tyres from The Avon India Rubber Co.11th Oct 1933Box 156 \ 3  scan0011
Letter from The Avon India Rubber Co. Ltd. quoting a price for Duo Tread tyres.7th Oct 1933Box 156 \ 3  scan0012
Follow-up letter from Avon Tyres regarding a quotation for 6.00/18 Duo Tread Tyres.13th Oct 1933Box 156 \ 3  scan0013
The test results and recommendations for Duo-Tread tyres.14th Nov 1933Box 156 \ 3  scan0014
Short memo providing initial feedback on the performance of Duo-tread tyres.15th Nov 1933Box 156 \ 3  scan0015
Letter from Avon India Rubber Co. Ltd. requesting information on tests for their 'Duo-Tread' tyres.24th Nov 1933Box 156 \ 3  scan0016
Letter to the Avon India Rubber Co. Ltd. regarding a set of Duo-Tread tyres, confirming they have been fitted to an experimental car but a report is pending sufficient mileage.27th Nov 1933Box 156 \ 3  scan0017
Customer's complaint regarding the noise and performance of Avon Double Tread Tyres.31th Jan 1934Box 156 \ 3  scan0018
Letter to the Avon India Rubber Co. Ltd. condemning their 'Duo' tread tyres after a 1,600-mile test due to noise and poor non-skid qualities.1st Feb 1934Box 156 \ 3  scan0019
'Duo' tread Avon Tyres.2nd Feb 1934Box 156 \ 3  scan0020
Letter from The Avon India Rubber Co. Ltd. arranging a meeting to discuss Duo Tread Tyres.3rd Feb 1934Box 156 \ 3  scan0021
Letter from Avon Tyres regarding the supply of 'Supreme' 6-ply tyres for testing on a Phantom Three model and requesting mileage data on a previous set.15th Oct 1935Box 156 \ 3  scan0022
Invoice for tyres and tubes from The Avon India Rubber Co. Ltd.18th Oct 1935Box 156 \ 3  scan0023
The unsatisfactory performance regarding noise and mileage of Avon Duo Tread Tyres.19th Oct 1935Box 156 \ 3  scan0024
The unsatisfactory noise performance of Avon Duo Tread Tyres on a J-III chassis.19th Oct 1935Box 156 \ 3  scan0025
Request to place an official order for tyres and tubes from Avon India Rubber Co. Ltd.21th Oct 1935Box 156 \ 3  scan0026
Letter to Avon India Rubber Co. Ltd. regarding the unsatisfactory performance and mileage of their Duo Tread Tyres.21th Oct 1935Box 156 \ 3  scan0027
Letter from The Avon India Rubber Co. Ltd. acknowledging receipt of a letter regarding Avon Duo Tread Tyres.22th Oct 1935Box 156 \ 3  scan0028
Order for Dunlop and Avon tyre covers and tubes.30th Oct 1935Box 156 \ 3  scan0029
Investigation into objectionable tyre noise on the Phantom III car, comparing various tyre brands.30th Oct 1935Box 156 \ 3  scan0030
Tyre noise characteristics related to wear, different tyre brands, and wheel types.30th Oct 1935Box 156 \ 3  scan0031
Summary of test results on tyre noise as affected by chassis, coachwork, tyre patterns, load, and road surfaces.30th Oct 1935Box 156 \ 3  scan0032
List of five factors that do not appear to affect tyre noise.30th Oct 1935Box 156 \ 3  scan0033
Investigations into tyre and rear-wheel noise on various cars, including a Ph.III and experimental models.10th Jan 1936Box 156 \ 3  scan0034
Letter from Avon India Rubber Co. Ltd. following up on the non-skidding performance of Supreme Tyres supplied for testing.10th Jan 1936Box 156 \ 3  scan0035
Letter to The Avon India Rubber Co. Ltd. concerning tyre instability and skidding issues.17th Jan 1936Box 156 \ 3  scan0036
Letter from Avon Tyres regarding the testing of their improved Duo Tread tyres.22th Jan 1936Box 156 \ 3  scan0037
Letter from The Avon India Rubber Co. Ltd discussing the supply of 7.00 Improved Duo Tread tyres for testing.28th Jan 1936Box 156 \ 3  scan0038
Letter from Avon Tyres regarding tests on their Supreme Tyres and their tendency to skid.28th Jan 1936Box 156 \ 3  scan0039
Letter to Avon India Rubber Co. Ltd. regarding tyres run on a trials car.30th Jan 1936Box 156 \ 3  scan0040
Letter from The Avon India Rubber Co. Ltd. enclosing a copy of a report.8th Feb 1936Box 156 \ 3  scan0041
Letter regarding recommended tyre pressures for a Phantom 'Three' car to improve non-skid performance.7th Feb 1936Box 156 \ 3  scan0042
The concluding page of a letter from The Avon India Rubber Co. Ltd.24th Mar 1938Box 156 \ 3  scan0043
Letter to The Avon India Rubber Co. Ltd. arranging a tyre test on a skid-pan.24th Mar 1938Box 156 \ 3  scan0044
Letter from The Avon India Rubber Co. Ltd. regarding cornering and skid-pan tyre testing data.19th Apr 1938Box 156 \ 3  scan0045
Letter to Avon India Rubber Co. Ltd. enclosing results of tests on their tyres.20th Apr 1938Box 156 \ 3  scan0046
Tyre comparison data for various brands on a Bentley B.23.AE chassis.13th Apr 1938Box 156 \ 3  scan0047
Comparison of different tyres on a Bentley chassis B.23.AE, measuring telescope readings and slip angles at various speeds.13th Apr 1938Box 156 \ 3  scan0048
Graph plotting tyre slip angles against sideways acceleration for various tyre types on a Bentley chassis.14th Apr 1938Box 156 \ 3  scan0049
Letter from Avon India Rubber Co. Ltd. discussing the results of skid pan tests and tyre specifications.22th Apr 1938Box 156 \ 3  scan0050
Letter from Avon India Rubber Co. Ltd. requesting details on tyre testing methodologies for slip angles and sideways acceleration.27th Apr 1938Box 156 \ 3  scan0051
Letter from The Avon India Rubber Co. Ltd. regarding the receipt of Avon and Fisk tyres for road testing.3rd May 1938Box 156 \ 3  scan0052
Letter to The Avon India Rubber Co. Ltd. clarifying tyre testing methods, slip angles, and correcting previously sent rim width data.3rd May 1938Box 156 \ 3  scan0053
The second page of a letter addressed to The Avon India Rubber Co. Ltd.3rd May 1938Box 156 \ 3  scan0054
Letter from The Avon India Rubber Co. Ltd. acknowledging a previous correspondence.6th May 1938Box 156 \ 3  scan0055
Letter to The Avon India Rubber Co. Ltd. requesting a set of 6.50 x 16 tyres for trial.14th Jun 1938Box 156 \ 3  scan0056
Letter from Avon India Rubber Co. Ltd. explaining delays in supplying experimental tyres due to a manufacturing error.21th Jun 1938Box 156 \ 3  scan0057
Letter to The Avon India Rubber Co. Ltd. arranging a meeting to discuss the self-centring of tyres.29th Jun 1938Box 156 \ 3  scan0058
Letter from The Avon India Rubber Co. Ltd. arranging a meeting to discuss the self-centring of tyres.1st Jul 1938Box 156 \ 3  scan0059
Letter from The Avon India Rubber Company regarding the delivery and testing of experimental 16' tyres.12th Jul 1938Box 156 \ 3  scan0060
Request to place an official order for experimental pattern tyres from the Avon India Rubber Co., Ltd.13th Jul 1938Box 156 \ 3  scan0061
Letter from Avon India Rubber Co. Ltd. explaining a delay in replying due to a staff member being on holiday.27th Jul 1938Box 156 \ 3  scan0062
Letter from Avon Tyres discussing the outcome of tests on experimental 6.50/16 tyres and arranging a follow-up meeting.6th Aug 1938Box 156 \ 3  scan0063
Stores copy document for the receipt of tyre covers from Avon India Rubber.4th Aug 1938Box 156 \ 3  scan0064
Letter from the Avon India Rubber Company confirming a meeting to discuss the results of experimental tyre tests.11th Aug 1938Box 156 \ 3  scan0065
Letter from Avon India Rubber Co. Ltd. regarding the dispatch of two tyres for testing.2nd Sep 1938Box 156 \ 3  scan0066
Letter to Avon India Rubber Co. detailing the results of Skid Pan tests on their tyres.20th Sep 1938Box 156 \ 3  scan0067
Letter from Avon Tyres discussing skid pan test results and arranging further tyre testing.22th Sep 1938Box 156 \ 3  scan0068
Letter from the Experimental Department to The Avon India Rubber Co. Ltd. regarding the use of a Skid Pan.23th Sep 1938Box 156 \ 3  scan0069
Letter from Avon India Rubber Co. Ltd. arranging for the use of a skid pan for testing.27th Sep 1938Box 156 \ 3  scan0070
Letter to The Avon India Rubber Co. Ltd. stating that the Skid Pan is now camouflaged and unusable.29th Sep 1938Box 156 \ 3  scan0071
Letter from The Avon India Rubber Co. Ltd. regarding a Skid Pan being out of action due to A.R.P.30th Sep 1938Box 156 \ 3  scan0072
Letter from Avon Tyres concerning tyre rolling resistance, skid pan testing, and high-speed tyre performance.17th Oct 1938Box 156 \ 3  scan0073
Page 2 of a letter from The Avon India Rubber Co Ltd concerning safety precautions for tyre testing.28th Oct 1938Box 156 \ 3  scan0074
Letter to The Avon India Rubber Co. Ltd. regarding the availability of a skid pan for their use.28th Oct 1938Box 156 \ 3  scan0075
Letter from Avon India Rubber Co. Ltd. regretting they cannot take up an offer to use the Skid Pan due to a slight accident with their test car.31th Oct 1938Box 156 \ 3  scan0076
Letter from Avon Tyres concerning the dispatch of experimental tyres for testing road holding and noise.7th Dec 1938Box 156 \ 3  scan0077
Letter from The Avon India Rubber Company Ltd. concerning arrangements for testing 16 silent pattern tyres on a road, drum, and an experimental Bentley.19th Dec 1938Box 156 \ 3  scan0078
Letter to The Avon India Rubber Co.Ltd. enclosing a comparison curve between their latest tyre and the India Super tyre.22th Dec 1938Box 156 \ 3  scan0079
Letter from The Avon India Rubber Co. Ltd. comparing the ply construction of their tyres with India tyres.29th Dec 1938Box 156 \ 3  scan0080
Letter to The Avon India Rubber Co. Ltd. confirming the ply construction of India Super tyres versus another tyre.2nd Jan 1939Box 156 \ 3  scan0081
Letter from Avon Tyres confirming the dispatch of 16 tyres from an altered mould for testing.5th Jan 1939Box 156 \ 3  scan0082
Letter from Avon Tyres regarding a delayed shipment of sixteen tyres due to road conditions.6th Jan 1939Box 156 \ 3  scan0083
The Avon India Rubber Co. Ltd's proposed use of the registered name 'Phantom' for their tyres.6th Jan 1939Box 156 \ 3  scan0084
Letter from Avon India Rubber Co. Ltd. requesting permission to name a new tyre 'Avon Phantom'.3rd Jan 1939Box 156 \ 3  scan0085
Yet-to-be-tested final form of the Avon tyre.10th Jan 1939Box 156 \ 3  scan0086
Follow-up note awaiting test results for the final form of the Avon tyre, with initial handwritten feedback.10th Jan 1939Box 156 \ 3  scan0087
Promising and quiet preliminary test results for an Avon Tyre.13th Jan 1939Box 156 \ 3  scan0088
Test report on Avon Special Tyres 6.50 x 16.23th Jan 1939Box 156 \ 3  scan0089
Cover note for an enclosed letter to Avon India Rubber Co. Ltd. regarding their use of the 'Phantom' name.23th Jan 1939Box 156 \ 3  scan0090
Letter to The Avon India Rubber Co. Ltd. refusing permission to use the registered name 'Phantom' for a new tyre.23th Jan 1939Box 156 \ 3  scan0091
Letter to The India Tyre & Rubber Co. detailing the mileage and position of two special tyres tested on a Bentley test car in France.15th Feb 1939Box 156 \ 3  scan0092
Letter from The Avon India Rubber Co. Ltd. regarding the suitability of a Skid Pan for slip angle tests.21th Feb 1939Box 156 \ 3  scan0093
Letter to Avon India Rubber Co. Ltd. concerning the cancellation of a skid pan inspection due to bad weather.22th Feb 1939Box 156 \ 3  scan0094
Letter from Avon India Rubber Company regarding a Skid Pan being rendered unusable by the weather.25th Feb 1939Box 156 \ 3  scan0095
Request to place an order for tyres and tubes with instructions for their delivery.9th Mar 1939Box 156 \ 3  scan0096
Letter to The Avon India Rubber Co. Ltd. requesting a further supply of special 6.50 x 16 x 4 ply tyres.9th Mar 1939Box 156 \ 3  scan0097
Letter from Avon India Rubber Co. Ltd. confirming the manufacture and dispatch of 4-ply tyres.10th Mar 1939Box 156 \ 3  scan0098
Letter from a tyre manufacturer proposing a meeting to discuss test results and power losses.10th Mar 1939Box 156 \ 3  scan0099
Letter to Dr. J.G. Mackay of The Avon India Rubber Co. Ltd. to reschedule a visit.13th Mar 1939Box 156 \ 3  scan0100
Letter from Avon India Rubber Co. regarding a delay and balance issue with a batch of tyres.15th Mar 1939Box 156 \ 3  scan0101


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