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).
Performance graph showing the power output of the 'China Unit' engine with various configurations.
| Identifier | ExFiles\Box 181\M13\M13.2\ img136 | |
| Date | 21th November 1931 guessed | |
| POWER OUTPUT CHINA UNIT C/R RM.{William Robotham - Chief Engineer} 51 112° CAMSHAFT INLET & EX. CAMS TO E55358 HIGH LIFT ROCKERS. OPEN EXHAUST INLET VALVE DIA 1·4 MIN CLCE ROUND INLET VALVE ·225 1 7/8 S.U. ① CLAUDEL ② B.H.P. R.P.M. MIXTURE TOO STRONG NEW NEEDLE REQUIRED T.D.C. 12 EX. 59 IN 50-7 ·013 CLCE B.M.E.P INDUCTION DEPN. INS. HG. | ||