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).
Letter discussing a discrepancy in the Phantom III engine power curve.
| Identifier | ExFiles\Box 90a\6\ Scan240 | |
| Date | 25th April 1939 | |
| 262. 53, BERKELEY COURT, N.W.1. WELBECK 5010. April 25th /39. Dear Rm{William Robotham - Chief Engineer}, Many thanks for the engine power curve for P.III. I notice that this curve shows a peak of about 220 as against 230 B.H.P. in the curve you showed me at Derby. Perhaps it would be better to wait until my own unit is | ||