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).
Certificate of technical checks for Rapson Cord Balloon tyres tested on a Marmon car at the Miramas Autodrome.
| Identifier | ExFiles\Box 39\1\ Scan194 | |
| Date | 28th April 1928 | |
| COPY From: THE PRESIDENT OF THE AUTOMOBILE CLUB DE FRANCE PARIS To: F.Lionel Rapson Esq. 77, Tottenham Court Road, W.1 Certificate of Technical Checks carried out during the test runs undertaken by Mr. F.Lionel Rapson on a MARMON CAR at the MIRAMAS AUTODROME between February 23rd and April 28 1928 TYRES PARTICULARS: BRAND: RAPSON TYPE: Rapson Cord Balloon. The first set of covers bearing the numbers: R8.4747 M.5851 R8.3673 E.{Mr Elliott - Chief Engineer} 717 R7.10244 I. 717 R7.10245 I. 717 made the 6.433 first rounds on the track, i.e. 32.480 Kms 281m33. At that point the tyres were taken off and the covers replaced by new ones, bearing the following numbers:- R8.6051 M.5851 R8.5828 M.5851 R8.6049 M.5851 R8.5557 M.5851 This set of tyres made the run from the 6.433rd to the 12.909th round, i.e. 6.476 rounds or 32.697 kms 388m76. These covers were then taken off and replaced by others bearing the following numbers R8.4386 M.5851 R8.5122 M.5851 R8.4907 I. 717 R8.4669 I. 717 which made the run to the end of the tests (81.193 kms 129m) ......ooooo...... During the entire test runs the same inner tubes remained in commission. They carried the following numbers:- R8.668 R8.669 R8.670 R8.633 After having been used, the first and second sets of covers and the ENCLOSURE No 139 WOLVER | ||