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).
Test results showing petrol level loss in an Autovac system at various engine speeds with low fuel.
| Identifier | ExFiles\Box 40\4\ Scan376 | |
| Date | 26th October 1933 guessed | |
| -2- (C) As (B) but running on reserve tap with only 2 gallons of petrol in tank. ENGINE R.P.M. PETROL LEVEL LOSS IN AUTOVAC. DURATION OF RUN. 1000 1.5" 10 mins. 2500 1.5" " 3000 1.5" " 3500 1.0" " 3750 1.0" " ------------------- Hs{Lord Ernest Hives - Chair}/Wym.{G. Harold Whyman - Experimental Manager} | ||