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 graph for an 18 HP Lanchester engine, showing the effects of varying tappet clearance.
| Identifier | ExFiles\Box 1\8\ B001_X100 Engine Chassis-page200 | |
| Date | 7th July 1932 guessed | |
| RM{William Robotham - Chief Engineer} PR XI 18. HP LANCHESTER POWER CURVE OPEN EXHAUST SINGLE 1 3/8 THROTTLE DIA: S.U. COMP. RATIO .050 TAPPET CLCE RECOMMENDED FOR RUNNING IN THE INSTRUCTION BOOK .020 TAPPET CLCE B.H.P. B.M.E.P. R.P.M. VARYING TAPPET CLEARANCE DIAGRAM TEXT: 8-4 16 .050 CLCE IN EX 35.6 38 RUNNING CLCE. | ||