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 graph for a Falcon X Supercharger with a Claudel Hobson A.V.T. carburetter at 18,000 RPM, plotting various metrics against air flow.
| Identifier | ExFiles\Box 42\3\ Scan016 | |
| Date | 16th October 1926 guessed | |
| FALCON X SUPERCHARGER CLAUDEL HOBSON A.V.T. CARBURETTER R.P.M. 18,000 Ⓐ ACROSS S/C Ⓑ ACROSS S/C + CARB HP INPUT EFFICIENCY % PRESSURE RISE INS MERCURY TOTAL EFFICIENCY = AIR HP / HP INPUT ADIABATIC EFFICIENCY = ADIABATIC TEMP RISE / ACTUAL TEMP RISE LBS AIR/MIN. | ||