Data table showing oil flow from the relief valve to the rocker shaft and timing gears at various engine speeds.
| Identifier | ExFiles\Box 106\5\ scan0110 | |
| Date | 23th September 1933 | |
| 23.9.33. OIL FLOW FROM RELIEF VALVE TO ROCKER SHAFT AND TIMING GEARS WITH .062" BI-PASS HOLE IN THE MAIN VALVE. | ENGINE R.P.M. | TIME FOR 1 PINT. | PTS/HR. | ROCKER SHAFT OIL PRESS. | OIL TEMP. START | OIL TEMP. FINISH | |---------------|--------------------|---------|-------------------------|-----------------|------------------| | 1000 | 3 mins. 38 secs | 16.51 | 8 lbs/sq.in. | 70ºC | 70ºC | | 1500 | 2 " 49 " | 21.30 | 9.5 " | 70ºC | 73ºC | | 2000 | 2 " 23 " | 25.17 | 10.5 " | 70ºC | 76ºC | | 3000 | 1 " 56 " | 31.03 | 12.0 " | 70ºC | 78ºC | | 3500 | 1 " 44 " | 34.61 | 15.0 " | 70ºC | 82.50ºC | Hs {Lord Ernest Hives - Chair} /Wym. {G. Harold Whyman - Experimental Manager} | ||
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).