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).
Comparative power curves at full throttle for a moderate supercharger engine, comparing standard and long duration camshafts.
| Identifier | ExFiles\Box 43\3\ Scan224 | |
| Date | 20th December 1928 | |
| R.R F.XII-MS-113 MODERATE SUPERCHARGER ENGINE COMPARATIVE POWER CURVES AT FULL THROTTLE. A.{Mr Adams} WITH STANDARD CAMSHAFTS. B. WITH LONG DURATION CAMSHAFTS. FUEL:- 60/40 BENSOL/AVIATION PLUGS:- LODGE R 40 INCREASE IN HORSE-POWER OBTAINED CORRECTED BRAKE HORSE-POWER CRANKSHAFT R.P.M. +27 +28 +35 -N.R.P.M.- Y.H 20-12-28 400 450 500 550 600 650 700 2000 2100 2200 2300 2400 2500 A B | ||