Graph of Power Output (BHP) and Induction Pipe Depression vs R.P.M. for a China Unit 3.25 Bore engine.
| Identifier | ExFiles\Box 92\2\ scan0135 | |
| Date | 1st August 1931 guessed | |
| CURVE I POWER OUTPUT LONG DURATION CAMSHAFT. CHINA(Experimental Engine) UNIT 3.25 BORE. 116° CAMSHAFT 5-1 C/R ZENITH TRIPLE DIFFUSER CARB ON EXHAUST SIDE OF BLOCK. B.H.P. R.P.M. B.H.P./LITRE 23.6 INDUCTION PIPE DEPN INS/Hg. EX IN 7° 54 48 .020 CL'CE. INLET DURATION 227 EXHAUST DURATION 235 | ||
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).