Blueprint diagram of a supercharger testing rig.
| Identifier | ExFiles\Box 42\3\ Scan056 | |
| Date | 3rd December 1926 | |
| P TORQUE ARM. DRUM TEMPERATURE. T₁ DRUM PRESSURE. h₁ LOW PRESSURE DRUM CLAUDEL HOBSON CARBURETTER OUTLET PRESSURE. h₃ OUTLET TEMPERATURE. T₂ CALIBRATED VENTURI EYE PRESSURE. h₂ ADJUSTABLE ORIFICE SUPERCHARGER TESTING RIG. A.A. RUBBRA 3/12/26 | ||
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).