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 from installation tests on a Fury Tank showing the effect of RPM on water displaced during the warming-up period.
| Identifier | WestWitteringFiles\V\December1930-February1931\ Scan183 | |
| Date | 5th January 1931 | |
| INSTALLATION TESTS FURY TANK LOW POSITION RELATIVE TO CYL BLOCKS EFFECT OF RPM ON WATER DISPLACED, WARMING UP PERIOD CURVE ① WARMING UP @ 1000 RPM (LOW PUMP SPEED) CURVE ② " " @ 1500 " STATIC LEVEL GALLS TEMP °C TAKEN AT HEADER TANK! TAG 5-1-31 CURVE 213F | ||