Originally Posted by
Chris Scott
There seems to be some confusion on the sea-level T/O power of the DH Gypsy 12: was it 425 HP or 525 HP?
Both.
Courtesy of Flight, June 23rd, 1938:
Maximum power rating: 410/425 bhp at 2400 rpm at 7500 ft, zero boost
Maximum take-off power: 505/525 bhp at 2600 rpm at sea level, 3½ psi boost
Originally Posted by
Allan Lupton
Not sure how this contributes as although the power per motor was much the same, I believe the Beech King Air had two motors and as can be seen the Albatross had four.
I assume ZeBedie is referring to the King Air 300/350, powered by the 1050 shp PT6A-60A, resulting in a twin with the same installed power as the DH91's four Gipsy Twelves.