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).
Performance graph comparing Horsepower (HP) and Mean Effective Pressure (M.E.P.) curves for Hispano and E.A.C. engines.
| Identifier | ExFiles\Box 180\M4\M4.2\ img016 | |
| Date | 25th February 1923 guessed | |
| H.P. & M.E.P. CURVES FOR HISPANO & E.A.C. Top Graph - B.M.E.P.: - Y-Axis Label: B.M.E.P. lbs/sq" - Y-Axis Values: 120, 110, 100, 90, 80 - Curve Labels: - HISPANO - E.A.C. WITH 2. R.R.C.H. CARBURETTERS - E.A.C. 1 CARB. R.R.C.H. - E.A.C. STANDARD Bottom Graph - B.H.P.: - Y-Axis Label: B.H.P. - Y-Axis Values: 140, 130, 120, 100, 80, 60, 40, 20 - X-Axis Label: R.P.M. - X-Axis Values: 500, 1000, 1500, 2000, 2500, 3000 - Curve Labels: - E.A.C. 2 CARBURETTERS R.R.C.H. - E.A.C. 1 CARB R.R.C.H. - HISPANO - E.A.C. STANDARD KNAVE CARB. | ||