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).
Graph of rig test results for the Goshawk Blower 144X, showing pressures and efficiencies against air flow.
| Identifier | ExFiles\Box 179b\3\ img361 | |
| Date | 14th February 1933 guessed | |
| GOSHAWK BLOWER 144X RIG TESTS CORRECTED TO:- STANDARD BAR. 29.92 "HG " TEMP. 15° C DRY AIR DELIVERY PRES 12 8 4 0 -4 30% 20% 10% PRESSURES EFFICIENCIES [ FROM INLET ] AIR FLOW 40 50 60 70 80 CALCU | ||