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 of inlet valve discharge coefficients for PV12 size cylinders on an air blowing rig.
| Identifier | ExFiles\Box 134\2\ scan0059 | |
| Date | 2nd September 1935 | |
| FIG III AIR BLOWING RIG N° 4 BED INLET VALVE DISCHARGE COEFFICIENTS PV12 SIZE CYLINDERS DISCHARGE COEFFICIENT K 100 80 60 40 20 0 VALVE LIFT : INCHES. 0.1 0.2 0.3 0.4 0.5 0.6 NORMAL VALVE LIFT INLET PLUG LEC 4577 1.8" EXH PLUG RAMP 1.8" INLET PLUG RAMP 1.8" PANCAKE HEAD 1.7" VALVE DIAMETER VALVES REMOVED R.W.C. 2.9.35 | ||