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).
Remarks on the silence of operation of a magneto and a measurement of tangential force.
| Identifier | ExFiles\Box 40\2\ Scan149 | |
| Date | 20th October 1926 guessed | |
| -6- (16) Remarks re silence of operation :- Very silent in operation, compared with standard Watford E06 magneto, at all speeds. (17) Tangential force = 1.25 lbs weight EFC / HEW. | ||