Graph showing the power output of a 20 HP engine with increased compression ratios.
| Identifier | ExFiles\Box 6\7\ 07-page013 | |
| Date | 15th July 1924 | |
| 20 H.P. ENGINE - POWER OUTPUT WITH INCREASED COMPRESSION RATIO CORRECTED FOR BAR 760 m {Mr Moon / Mr Moore} /m AIR 12° C B.H.P. R.P.M. 5.45 TO 1 COMP'S RATIO CALCULATED FOR 5.45/1 RATIO STD COMP'N RATIO 4.75 TO 1 CLH / 15/7/24 | ||
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).