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).
Vehicle speed, engine revolutions and the effect of components like headlamps and bodywork.
| Identifier | ExFiles\Box 90a\2\ Scan079 | |
| Date | 10th July 1934 guessed | |
| 1 M.P.H. I know that a pair of Lucas P.100 D.B. headlamps alone used to cost my old 2 1/2 litre 2 M.P.H. You see that engine of mine does not gain one more rev than it used to do with the screen raised on the Italian Autostrada that was 4300, so it appears that the engine never had any real power over 4300 & therefore whatever kind of body you fit it won't give any better result. I have copied the Riley track bodies & also the Monoposto | ||