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).
Graph of Autovac fuel supply tests, plotting delivery vs. consumption and time to empty against engine RPM.
| Identifier | ExFiles\Box 102\1\ scan0157 | |
| Date | 15th March 1934 guessed | |
| 20/25 HP FUEL SUPPLY (AUTOVAC TESTS) B.7. UNIT COMP. RATIO 5.8:1 CAMSHAFT E57177 (V.O.S') 1 5/8" HORIZONTAL CARB. (LEC 3688) CYL. BLOCK LEC 3795 (60° & LARGER PASSAGE) COMPLETE STANDARD 20.25 PETROL FEED SYSTEM. INCLUDING :- REAR TANK. AUTOVAC. FILTER. TAPS. AND PIPE LINE. CURVE Nº1 COMPARISON BETWEEN AUTOVAC DELIVERY AND ENGINE CONSUMPTION CURVE Nº2 TIME TAKEN TO EMPTY THE AUTOVAC. RUNNING FULL THROTTLE, ABOVE AND BELOW THE POINT AT WHICH THE AUTOVAC CEASES TO OPERATE PINTS/HOUR ENGINE RPM ENGINE CONSUMPTION AUTOVAC DELIVERY AUTOVAC NOT WORKING BELOW 1.50 "Hg. DEPN. INDN. PIPE DEPN. " Hg ENGINE R.P.M. MINUTES (TIME) | ||