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).
Numbered list describing factors affecting the Autovac fuel system and throttle operation.
| Identifier | ExFiles\Box 40\4\ Scan062 | |
| Date | 9th May 1923 guessed | |
| contd:- -2- (1) Percentage decrease in the height to which the petrol can be raised. (2) A larger throttle opening is called for, to produce a given tractive effort, thus further reducing the depression communicated to the Autovac. (3) The increased amount of full throttle work will effect it in the manner stated. | ||