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).
Continuation page of a report regarding the silence of operation and tangential force.
| Identifier | ExFiles\Box 43\4\ Scan133 | |
| Date | 20th July 1928 guessed | |
| -6- Contd. (16) Remarks re silence of operation :- [Section crossed out] (17) Tangential force :- not taken. EFC. | ||