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).
Graph comparing different induction pipes and carburettors, plotting BHP and induction depression against engine RPM.
| Identifier | Morton\M19\ img269 | |
| Date | 29th October 1931 guessed | |
| Top Graph Title: COMPARISON OF BEST S.U. INDUCTION PIPE & CLAUDEL CARB. Bottom Graph Title: COMPARISON OF 1 7/8 THROTTLE DIA S.U. ON TWO DIFFERENT INDUCTION PIPES Right Axis Title: 112° CAMSHAFT JAPAN UNIT WITH TREPANNED VALVES. HIGH LIFT ROCKERS 5.13 C/R OPEN Ex. X-Axis: R.P.M. X-Axis Values: 1500, 2000, 2500, 3000, 3500, 4000 Left Y-Axis (BHP): B.H.P. Left Y-Axis (BHP) Values: 50, 60, 70 Left Y-Axis (Induction): INDUCTION DEPN Ins. Hg. Left Y-Axis (Induction) Values: 1, 2, 3, 4, 5, 6 Top Graph Labels: CLAUDEL C, S.U. PIPE A, B.H.P, INDUCTION DEPN, 2, 3 Bottom Graph Labels: PIPE A, PIPE B, B.H.P, INDUCTION DEPN, 1, 4, 5, 6 Reference: R.M.50 | ||