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).
Performance characteristics graph from rig tests of an 'R' supercharger with inlet guide vanes.
| Identifier | ExFiles\Box 178\4\ img042 | |
| Date | 8th April 1932 | |
| RIG TESTS OF "R" SUPERCHARGER CHARACTERISTICS WITH INLET GUIDE VANES DATE OF TEST: 8. 4. 32 BAR ["HG]: 29.88 AIR TEMP: 13°C ENGINE R.P.M.: 3200 x 7. Left Y-Axis: PRESSURE ["HG] -5, 0, 5, 10, 15, 20, 25 Right Y-Axis: EFFICIENCY 10%, 20%, 30%, 40%, 50%, 60% X-Axis: AIR FLOW 130, 140, 150, 160, 170, 180, 190 Graph Lines: TEMP' EFF'Y OVERALL EFF'Y DELIVERY Δ TEMP' RISE HORSE-POWER CARB' DEPRESSION Other Labels: APPROX' SURGING POINT | ||