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).
The advance curve characteristics for the large bore Phantom II engine.
| Identifier | ExFiles\Box 92\2\ scan0157 | |
| Date | 23th May 1933 | |
| x4441 To E.{Mr Elliott - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 2/KT. 23.5.33. LARGE BORE P.II. ADVANCE CURVES CHARACTERISTICS. We have been taking some ideal advance curves with the large bore Phantom II engine. The attached curve Rm.{William Robotham - Chief Engineer}P.58 shows the existing curves given by the oil relay and the curves required. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||