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).
Extract concerning the Goshawk II engine's starter switch, ignition, and high tension rotor.
| Identifier | ExFiles\Box 51\5\ Scan234 | |
| Date | 28th April 1922 guessed | |
| x4354 Extract from E3/M1.5.22. RE GOSHAWK II. STARTER SWITCH. X.3915. A point for further experimenting, using copper brushes. IGNITION - AUTOMATIC RANGE OF ADVANCE. X.4354. We do not know which actual curve Mr. Royce has approved of, but in any case the ratio of the governor can be easily modified to provide what is wanted. HIGH TENSION ROTOR. X.4357. We would like to know if this is due to the rotor slipping down the taper when hot, and contracting on cooling, thus causing a fracture. | ||