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).
Blueprint graph of engine performance curves plotting BHP, MEP and pressures against RPM.
| Identifier | ExFiles\Box 179b\3\ img297 | |
| Date | 3rd March 1933 | |
| BHP R.P.M. 500 1000 1500 2000 2500 3000 3500 3.3.33 INDN. DEPN. INS "Hg MEP LBS/SQ" 0 60 80 100 120 1 2 3 4 70 80 90 100 | ||