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 plotting B.M.E.P. and B.HP against R.P.M. for a high-power head, multi-cylinder engine.
| Identifier | ExFiles\Box 182\M19\ img282 | |
| Date | 7th February 1930 | |
| MULTICYL. ENGINE HIGH POWER HEAD 85 x 115 M/M 6 CYLS. 3-9 LIT CR{Mr Cra???ster / Mr Chichester} 5.45/1 TWO 42 M/M ZENITH TRIPLE VENTURI CARB'S 34 CHOKES SHELL Nº 1 PETROL B.M.E.P. R.P.M. B.M.E.P. (SINGLE CYL.) B.M.E.P. (6 CYL.) B.H.P. DOTTED CURVE SINGLE CYL. CURVE OBTAINED ON 7/FEB/30 & LATER REPORTED TO HAVE BEEN BEATEN | ||