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 comparison graph of a standard 40/50 fan versus an experimental E.A.C. fan.
| Identifier | ExFiles\Box 66a\4\ scan0182 | |
| Date | 27th March 1925 | |
| 1. STD. 40/50 6 BLADED FAN. (DRIVEN WITH 1.20 RATIO) 15. E.A.C. FAN INSTR.D FOR INITIAL PRODUC. (DRIVEN WITH 1.4 RATIO) THRUST POWER COMPARISON OF STANDARD 40/50 AND EXPERIMENTAL E.A.C. FAN POWER TO DRIVE FAN (H.P.) THRUST (lbs.wt.) ENGINE SPEED (r.p.m.) E.T.C. | ||