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).
Cross-section diagrams of a servomotor and an associated mechanism.
| Identifier | ExFiles\Box 178\2\ img099 | |
| Date | 12th February 1940 guessed | |
| SERVOMOTOR oil in oil out Static Pressure | ||