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).
Correspondence regarding vehicle performance calculations based on tyre dimensions.
| Identifier | ExFiles\Box 90a\3\ Scan068 | |
| Date | 12th June 1935 guessed | |
| upset in the slightest. The effective radius of the 6.50x19 is 15.95 ins & diam is 31.9 ins, this gives 25.4 M.P.H. per 1000 R.P.M. I should think that the extra "horses" would be very happy with this ratio, what do you think? My address for the next month will be Beach Hotel, Frinton-on-Sea. Kind regards Yours sincerely J.P. Haly | ||