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 showing the power curves for a Bentley 'Y' engine under different exhaust configurations.
Identifier | ExFiles\Box 97\3\ scan0048 | |
Date | 13th February 1939 guessed | |
BENTLEY 'Y' POWER (CUT-OUT) S.75 B11 N°1. UNIT CYL.HEAD FW1922 PISTONS P.446 (.470 RAISED DOME) CR{Mr Cra???ster / Mr Chichester}=8:1 (.050 GASKET) 'L' STD INDN. SYSTEM CAMSHAFT EX4752 TIMING A I.O. 5° B.T.D.C. I.C. 43° E.O. 43° E.C. 4° B.T.D.C. ① OPEN EXHAUST ② STD 'B' EXH. SYSTEM ③ C.O. OPEN ④ EXPTL. EXH. SYSTEM. (DOUBLE MANIFOLD EB4092) ⑤ S.C.O. OPEN B.H.P. R.P.M. B.M.E.P. | ||