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 for a pump's performance at varying RPMs, pressures, and oil temperatures.
| Identifier | ExFiles\Box 149\2\ scan0001 | |
| Date | 30th June 1919 guessed | |
| TEST D (CONT'D) [26°C] 1000 R.P.M 10 LB/▢" 1 GALL. IN 50 SECS 40 LB/▢" 1 " " 44 2/5 " 60 LB/▢" 1 " " 41 1/5 " 100 LB/▢" 1 " " 38 3/5 " 1.64 [38°C] 1500 R.P.M 10 LB/▢" 1 GALL IN 38 SECS 40 LB/▢" 1 " " 32 3/5 " 60 LB/▢" 1 " " 29 1/5 " 100 LB/▢" 1 " " 28 3/5 " THE OIL TEMP. DURING THESE TESTS VARIED AND IS SHOWN IN BRACKETS WHERE RECORDED. PUMP RUNS SILENTLY UNTIL HIGH PRESSURES ARE ATTAINED. PUMP LEAKS SLIGHTLY THROUGH JOINT FACES. | ||