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).
Test data for power required to drive a Goshawk radiator fan under various circumstances.
| Identifier | ExFiles\Box 75\3\ scan0226 | |
| Date | 22th January 1925 | |
| POWER REQUIRED TO DRIVE RADIATOR FAN IN VARIOUS CIRCUMSTANCES Test No. A.{Mr Adams} 26 Goshawk Circumstances:- No 22 fan repeated Date. Motor Field Current (amps.). Motor Speed. Fan Speed. S. Ratio. Volts across motor brushes. Motor armature current. Volts across motor brushes light. Motor armature current light. Thrust (lbs). '91 22-1-25, 1.472, 610, 1400, 2.29, 87.77, 6.45, 85.73, 2.02, 3.650 22-1-25, 1.472, 785, 1800, 2.29, 112.33, 8.20, 107.93, 2.05, 5.600 22-1-25, 1.500, 960, 2200, 2.29, 138.62, 10.80, 135.04, 2.16, 7.750 , , 611, 1400, 2.29, 88.69, 6.70, 86.34, 2.10, 3.300 , , 875, 2000, 2.29, 130.64, 9.40, 122.46, 2.05, 6.650 , , 960, 2200, 2.29, 138.62, 11.20, 133.71, 2.11, 8.200 | ||