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).
The instrument board, ignition switch modifications, and a larger generator for the 40/50 model.
| Identifier | Morton\M22\ img156 | |
| Date | 21th September 1922 guessed | |
| contd:- -2- Instrument Board. Owing to the fact of us doing without the pressure pump and pressure gauge, we can arrange the instruments in a similar manner to the Goshawk. We are waiting for particulars from W.W. of the modifications to the locked ignition switch in order for us to earth the magneto and also we are waiting for particulars of the larger size generator for the 40/50. Hs.{Lord Ernest Hives - Chair} | ||