Series of three graphs plotting pressure in LBS/sq inch relative to atmosphere against crankshaft degrees.
| Identifier | ExFiles\Box 181\M7\ img061 | |
| Date | 20th December 1923 guessed | |
| LBS/□" RELATIVE TO ATMOSPHERE CRANKSHAFT DEGREES Graph 1 (Left): Y-Axis: 150, 125, 100, 75, 50, 25 X-Axis: ATS, BDC, TDC, EC, ATC, 25, 50, 75, 100 Graph 2 (Middle): Y-Axis: -10, 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 150 X-Axis: ATS, BDC, TDC, EC, ATC, +10 Graph 3 (Right): Y-Axis: -10, 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 150 X-Axis: ATS, BDC, TDC, EC, ATC, 50, 100 | ||
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).