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 comparing the boost, pressure, and efficiency of a Goshawk Blower 144X under different configurations.
| Identifier | ExFiles\Box 179b\3\ img365 | |
| Date | 23th November 1933 | |
| STANDARD DIFF. SLOTTED STANDARD BLOCKED DEL. PRESSURE STANDARD EFFICIENCIES DIFF. SLOTTED STANDARD BLOCKED GOSHAWK BLOWER 144X COMPARISON OF BOOST AND EFFICIENCY AS STANDARD WITH ONE PASSAGE IN DIFFUSER RING BLOCKED CORRECTED TO STANDARD BAR. AND TEMP. TEST DATE 23-11-33 DRIVE R.P.M. 2800 GEAR B.D 1.7 ROTOR R.P.M. 22940 DRY AIR DELIVERY PRESSURE (HG) EFFICIENCY % DA{Bernard Day - Chassis Design}-5-53 | ||