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).
The maximum oil pressures for the 'SS' engine when starting from cold.
| Identifier | WestWitteringFiles\T\January1929-February1929\ Scan193 | |
| Date | 19th December 1929 | |
| COPY. E.{Mr Elliott - Chief Engineer} FROM HS.{Lord Ernest Hives - Chair} HS{Lord Ernest Hives - Chair}7/LG1912.29. 'SS{S. Smith}' OIL PRESSURES. X7010 X7060 With reference to E1/M15.2.29. on starting up the SS.{S. Smith} engine from cold and running at approx: 500 RPM., the oil pressures attain the following max: values: High. 32. 0.lbs/sq. in. Intermediate. 16. 0 " " " Low. 5. 5 " " " It is necessary for the engine to run approx. three minutes before these values are attained. HS.{Lord Ernest Hives - Chair} | ||