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).
Oil pressure test results at various RPMs and configurations.
| Identifier | ExFiles\Box 149\2\ scan0159 | |
| Date | 8th June 1937 | |
| B.23.AE. 8.6.37. R.P.M. MAIN. AWX. 500 5.0 lbs. - 1000 16.0 " - 1500 22.5 " - 2000 26.5 " 1.5 2500 31 " 1.5 3000 33 " 2.75 RETURN FROM MAIN TO SUCTION. R.P.M. MAIN. AWX. 500 5.0 lbs. - 1000 16.0 " - 1500 21.5 " - 2000 26 " 1.75 2500 31 " 1.75 3000 34 " 3.0 STANDARD. R.P.M. MAIN. AWX. 500 5.0 lbs. - 1000 16.0 " - 1500 21.5 " - 2000 24.5 " - 2500 28 " 1.0 3000 31 " 1.5 .125" dia. hole from Auxiliaries to suction. ALL FIGURES TAKEN WITH THE OIL AT 80°C. | ||