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 development graph for a 4 1/4 Litre Bentley engine, comparing camshaft performance.
| Identifier | ExFiles\Box 82\4\ scan0394 | |
| Date | 6th October 1936 guessed | |
| 4 1/4 LITRE BENTLEY POWER DEVELOPMENT CAMSHAFT CAMSHAFT EX 22842 (WITH .750 RAD. FOLLOWERS) ① I.O. 20° BT{Capt. J. S. Burt - Engineer} E.o. 44° BB I.C. 48° AB E.C. 19° AT ② I.O. 18° BT{Capt. J. S. Burt - Engineer} E.o. 40° BB I.C. 50° AB E.C. 23° AT ③ I.O. 3° BT{Capt. J. S. Burt - Engineer} E.o. 47° BB I.C. 58° AB E.C. 6° AT STD CAMSHAFT WITH STD. FOLLOWERS Y-Axis: B H P (80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180) X-Axis: R P M (500, 1000, 1500, 2000, 2500, 3000, 3500, 4000, 4500) Top right corner: S Bottom right corner: CFS | ||