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).
Continued page of a document discussing the slopes of various curves.
| Identifier | WestWitteringFiles\E\November1920\ Scan47 | |
| Date | 15th November 1920 guessed | |
| Contd. -3- EFC1/T10.114.20. other machines, curves such as III and IV would have a decided slope upwards to the right, the preliminary curves I and II in this instance having a relatively greater slope than those in the present instance. EFC. | ||