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 of the petrol pump and autovac system.
| Identifier | ExFiles\Box 5a\2\ 02-page121 | |
| Date | 27th June 1929 guessed | |
| then run with the petrol tap on the reserve, so that it would then demonstrate that the pump was not creating sufficient vacuum to draw sufficient petrol to keep the autovac level above the stand pipe. Whether or not he has obtained any results we do not know here. Probably you will have received a letter from him. CJHH | ||