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 output graph for a 'China Unit' engine, detailing performance with a 112° camshaft and high lift rockers.
| Identifier | ExFiles\Box 102\1\ scan0052 | |
| Date | 17th November 1931 guessed | |
| POWER OUTPUT CHINA UNIT C/R 5.65-1 RM.{William Robotham - Chief Engineer} 51 112° CAMSHAFT INLET & EX: CAMS TO E.55358. HIGH LIFT ROCKERS. OPEN EXHAUST. INLET VALVE DIA 1.4 MIN CLCE ROUND INLET VALVE .225 1 7/8 S.U. ① CLAUDEL ② MIXTURE TOO STRONG NEW NEEDLE REQUIRED B.H.P. R.P.M. B.M.E.P. INDUCTION DEPN: INS: HG: T.O.C. 12 EX. 59 IN 50-7 .013 CLCE | ||