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).
Power curve chart for the R-17 direct drive engine developed for the 'Miss England I' racing boat.
| Identifier | ExFiles\Box 174\4\ img021 | |
| Date | 9th December 1930 | |
| R' ENGINES - DIRECT DRIVE CURVE 35 "R" R-17- POWER CURVE - 3000-2550 R.P.M DIRECT DRIVE ENGINE FOR Miss ENGLAND I 7.47 S/C GEARS 6/1 C.R PISTONS VALVES- I.C 50° A.B.D.C MAGS- 42° B.T.D.C AT F.T. PLUGS- K.L.G. 618 OIL- CASTROL R (RACING) FUEL- B.P. 33 1/3 / 33 1/3 / 33 1/3 AVn / BEN / ALCOHOL MIXTURE CONTROL 30° FROM F.S POSITION BAR 30.02" Hg CORRECTED B.M.P ENGINE R.P.M. C/B.H.P BOOST Hg A.B.S PTS/BHP/HR BOOST (Hg ABS) PTS/BHP/HR G.P. 9.12.30 | ||