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).
Power curve graph for engine FXI-S-25 showing Corrected B.H.P and Boost against Engine R.P.M.
| Identifier | ExFiles\Box 36\2\ scan 199 | |
| Date | 20th February 1925 | |
| POWER CURVE WITH THROTTLE SET TO GIVE 3.7" Hg BOOST ABOVE NORMAL AT 1850 R.P.M. FUEL 20/80 BENZOLE/AVIATION 5.5/1 COMPRESSION RATIO PISTONS LODGE R 40 PLUGS BAR 762 M/M AIR 11°C ENGINE FXI-S-25 C/L B.H.P CORRECTED B.H.P ENGINE R.P.M. BOOST INS. Hg GATE CONDITIONS 1850 R.P.M. STAMP: RECEIVED 20 FEB 1925 REV. | ||