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 characteristic graph for a Graham Car Supercharger at 2000 Engine RPM.
| Identifier | ExFiles\Box 140\1\ scan0065 | |
| Date | 15th June 1934 | |
| SHEET 2 GRAHAM CAR SUPERCHARGER WITH CARBURETTER LESS AIR CLEANER CHARACTERISTICS WITH DRY AIR AT 2000 ENGINE R.P.M CORRECTED TO :- STD. BAR: 29.92 STD. TEMP: 15°C TEST DATE: 15-6-34 ROTOR R.P.M: 11520 ROTOR TIP SPEED: 377.0 FT/SEC. DELIVERY PRESSURE ("HG) EFFICIENCY HORSE-POWER TEMP' RISE (C°) AIR FLOW (LBS/MIN) DEL. PRESS. TEMP' EFF'Y HORSE POWER TEMP. RISE ESTIMATED 82 H.P. WORKING POINT A.A. 26.6.34 | ||