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).
Graph of altitude power curves for the supercharged R.R. F.II (No 25) engine.
| Identifier | ExFiles\Box 36\2\ scan 149 | |
| Date | 28th January 1928 | |
| SUPERCHARGED R.R. F.II (No 25) ALTITUDE POWER CURVES. S/C TO E 31186 A.{Mr Adams} 100% BENZOL B. 20/80 BENZOL / AVIATION. 2250 R.P.M. ENGINE COMP. RATIO :- 6.2/1 CORRECTED HORSE - POWER. C.H.P. ALTITUDE (FEET) 480 H.P. 10,200 FEET. 10,800 FEET. | ||