Correcting the wheel revolutions per mile for a 7 x 20' Silent Tread Fort Reinforced Dunlop tyre.
| Identifier | ExFiles\Box 65\2\ scan0316 | |
| Date | 15th May 1930 | |
| x7820. To Oy. From Hs {Lord Ernest Hives - Chair} /AJL. c. to By. {R.W. Bailey - Chief Engineer} c. to Ds. c. to EV. {Ivan Evernden - coachwork} Hs {Lord Ernest Hives - Chair} /AJL.1/MJ.15.5.30. x3895 x7820 x5820. TYRE SIZES. With reference to Hs {Lord Ernest Hives - Chair} /AJL.2/MJ.8.5.30., the figure of 630.5" quoted for the wheel revs/mile of the 7 x 20" Silent Tread Fort Reinforced Dunlop tyre is incorrect, it should read 618 revs/mile. Hs {Lord Ernest Hives - Chair} /AJL. | ||
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).