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 for a Graham Car Supercharger at 1000 engine RPM.
| Identifier | ExFiles\Box 140\1\ scan0064 | |
| Date | 15th June 1934 | |
| SHEET 1 GRAHAM CAR SUPERCHARGER WITH CARBURETTER LESS AIR CLEANER CHARACTERISTICS WITH DRY AIR AT 1000 ENGINE R.P.M. CORRECTED TO :- STD BAR: 29.92 STD TEMP: 15°C TEST DATE: 15-6-34 ROTOR R.P.M. 5760 ROTOR TIP SPEED 188.3 FT/SEC ESTIMATED WORKING POINT 40HP DELIVERY PRESSURE ("HG) EFFICIENCY HORSE - POWER TEMP. RISE (C°) AIR FLOW (LBS/MIN) DEL' PRESS TEMP' EFF'Y HORSE - POWER TEMP' RISE A.A / 26-6-34 | ||