Graph plotting Brake Horse Power and Brake Mean Effective Pressure against RPM to show power losses from different exhaust system configurations.
| Identifier | ExFiles\Box 14\6\ Scan223 | |
| Date | 2nd November 1931 guessed | |
| RM. {William Robotham - Chief Engineer} P 33 LOSSES TO EXHAUST SYSTEM. PH. II SHORT TYPE. C.O OPEN AND CLOSED 4.G.C/R 108° MASKED VALVE CAMSHAFT TWIN CARBS. 1.4 CHOKES OPEN EXHAUST ① COMPLETE PH SHORT TYPE EXHAUST SYSTEM C.O. OPEN ② B.H.P 160 150 140 130 120 110 100 90 80 B.M.E.P. 120 110 100 90 80 70 60 R.P.M 500 1000 1500 2000 2500 3000 3500 | ||
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).