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 B60 engine Mean Effective Pressure (M.E.P.) curve against RPM, used for torsional calculations.
| Identifier | ExFiles\Box 132\2\ scan0195 | |
| Date | 27th January 1941 guessed | |
| B60 M.E.P. CURVE USED IN CALCULATION OF TORSIONALS. B.M.E.P. R.P.M. SHEET 6 140 120 100 80 60 500 1000 1500 2000 2500 3000 3500 4000 4500 | ||