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).
Graph plotting crankshaft degrees against piston displacement and relative pressure.
| Identifier | ExFiles\Box 181\M7\ img062 | |
| Date | 20th December 1923 | |
| Top Right Y-Axis Title: LBS/D" RELATIVE Right Y-Axis Scale: -10, 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180 Left Main Title: CRANKSHAFT DEGREES for PISTON DISPLACEMENT Left Y-Axis Scale: ATS, 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, 180° X-Axis Scale: 0, 25, 50, 75, 100 Graph Data Point Labels: I.O., E.C., E.O., I.C. Stamp Box Text: ROLLS-ROYCE, LIMITED DRAWING ROOM. 20 DEC. 23 DERBY | ||