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).
Diagram of a mock-up for a noise-insulated centre bracket for a propeller shaft.
| Identifier | ExFiles\Box 156\4\ scan0108 | |
| Date | 15th November 1939 guessed | |
| CRUCIFORM. FELT RUBBER BUSH. MOCK-UP OF NOISE INSULATED CENTRE BRACKET FOR PROP. SHAFT 10.B.V. S B | ||