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).
Requesting minimum road wheel revolutions per mile figures for S.S. and 20 HP chassis.
| Identifier | ExFiles\Box 50\4\ Scan327 | |
| Date | 5th November 1929 | |
| X4308. Hs{Lord Ernest Hives - Chair}/AJL. from EFC. EFC4/AD5.11.29. You have given me average figures for the road wheel revolutions per mile of the S.S. and 20 HP. chassis, viz. 608.7 and 660 respectively. Will you please now give me the minimum figures which are actually possible with the largest sizes of tyres known to be used. EFC. | ||