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).
Engine development, considering a longer stroke, a 1000 HP requirement, and a two-charge battery scheme.
| Identifier | ExFiles\Box 19\3\ Scan353 | |
| Date | 14th May 1930 guessed | |
| -5- we ought at once to put in hand longer stroke and try it out against the present stroke-bore ratio. If the ultimate engine which the Air Minsitry require is to be 1000 HP. it would in any case mean a larger cylinder than our present unit. TWO CHARGE SCHEME FOR BATTERY. R.{Sir Henry Royce} accepted this scheme and thought we ought to get it on the cars as soon as possible. HS.{Lord Ernest Hives - Chair} | ||