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).
Advising against requesting more power for the 20 HP engine, as a more powerful option already exists.
| Identifier | ExFiles\Box 5a\5\ 05-page068 | |
| Date | 3rd April 1928 | |
| contd :- -2- 20 HP., there will be certain customers who will always ask for a greater performance. We should not advise, at the moment, putting up a case to R.{Sir Henry Royce} for more power for the 20 HP. because the obvious reply will be that he has already designed you an engine which will give you more power, and it is not being used. Hs.{Lord Ernest Hives - Chair} Hel/LG3.4.28 attc. to Sg{Arthur F. Sidgreaves - MD}'s copy. | ||