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 speed, gearing for different car types, and personal driving preferences.
| Identifier | ExFiles\Box 75\1\ scan0147 | |
| Date | 22th October 1920 | |
| Contd. -2- R9/G22.10.20. In addition to all these points it must be remembered that all engines are of an increasing flexibility, and our own are remarkable for their high speed for which they are run without causing vibration on the car. For instance, we have many times had our present engine which is a big one, running at 3000 revs. per minute, and there is no reason why our new engines should not run even faster when it is desirable, by such owners who wish to go infor bursts of speed. is In conclusion, it/always possible for a buyer who desires a sportive high speed car fitted with a body of low wind-resistance to have a higher gear, especially fitted to his car, and in which case he would not require the extremely low gear at any time such as would not require the extremely low gear at any time such as would be demanded by the heavy covered cars, which are not intend- ed{J. L. Edwards} for high speed sportive driving. I quite agree with you that roads are not intended for these enormously high speeds, and personally, although I have to run up to their maximum speed occasionally, get much more pleasure from a speed which gives an average of about 25 miles an hour, that is, a speed which varies between 10 and 40. R.{Sir Henry Royce} R.R. 228A (100(T) 150. H S) (L. 601) VI-S. II-20 G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2300 | ||