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).
Comparing the performance of Rapson tyres against Dunlop tyres during tests with 4-wheel brakes in France.
| Identifier | Morton\M3.4\ img039 | |
| Date | 1st September 1924 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. BJ. c. to PN.{Mr Northey} EP.{G. Eric Platford - Chief Quality Engineer} c. to BY.{R.W. Bailey - Chief Engineer}✓ Wor.{Arthur Wormald - General Works Manager} ORIGINAL Hs{Lord Ernest Hives - Chair}5/LG23. 9.24. RAPSON RE: TYRES. X1238 X405D We attach a chart showing the life of tyres during the tests in connection with 4-wheel brakes in France. The Rapson Tyre Co. loaned to us some tyres for test. It will be seen that the average mileage is approximately the same as the Dunlop. The riding with the Rapson tyres is distinctly more hard than with the Dunlop owing to the fact that the inner walls of the tyres are thicker. We ran the Rapson tyres with 5 lbs. less pressure than the Dunlops. Steering wobbles were more pronounced with the Rapson tyres fitted. Hs.{Lord Ernest Hives - Chair} | ||