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).
Note regarding development tests of the 'R' engine for a boat and a visit by Sir Henry.
| Identifier | ExFiles\Box 19\6\ Scan003 | |
| Date | 20th January 1930 guessed | |
| -3- When we have the "R" engine on the bed and are running development tests in connection with these engines for the boat, Sir Henry will visit Derby and see the engine running. Hs.{Lord Ernest Hives - Chair} | ||