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).
Indicator diagram showing pressure vs crank angle for a 40-50 engine's exhaust stroke.
| Identifier | ExFiles\Box 66\2\ scan0035 | |
| Date | 4th April 1924 guessed | |
| 40-50 ENGINE. W.W. EXH. SCHEME. PRESS. SCALE 1" = 6.2 lbs/□" CYL NO 6. R.P.M. 2000. CUT OUT CLOSED. MAX. PRESS. NEAR END OF EXH STROKE = 10.85 lbs/□" INDICATED VOL. EFFCY = 91% ATMOS. LINE PISTON DISPLACEMENT FOR CRANK ANGLES. 3 | ||