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 concluding page of a letter from the Chief of the Engineering Department regarding achieving results at high speeds.
| Identifier | ExFiles\Box 4\5\ 05-page061 | |
| Date | 20th July 1920 guessed | |
| -2- Contd. they must remain open for a considerable period before the next closure, if the best results are to be achieved at very high speeds. Yours faithfully, (sgd) A.P. Young, CHIEF - ENGINEERING DEPARTMENT. APY/WS. | ||