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 plotting Brake Horse Power against R.P.M. to compare different induction systems.
| Identifier | WestWitteringFiles\N\July1925-September1925\ Scan294 | |
| Date | 23th July 1925 | |
| INDUCTION SYSTEM COMPARISONS. 2 23-7-25. ENG. WITH OPPOSED SPARKING PLUGS (NO 10 SPECIAL) AND STANDARD ENGINES. NO 10 E.A.C. SPECIAL BOTH TESTS WITH SHORT OPEN EXH. PIPES TO EACH PORT & JACKET WATER COLD. ALSO COLD HOT SPOT. CURVES FOR TWO STD E.A.C'S. B.H.P. R.P.M. | ||