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).
Schematic of a 9-cylinder radial engine showing the injector pump, servomotor, and air control valve.
| Identifier | ExFiles\Box 178\2\ img097 | |
| Date | 2nd January 1926 guessed | |
| Dynamic pressure, Air control valve, Servomotor, Injector Pump, Oil out, 1, 2, 3, 4, 5, 6, 7, 8, 9 | ||