Boeing T50


The Boeing T50 was a small turboshaft engine produced by Boeing. It was the first turboshaft engine to ever power a helicopter: a modified Kaman K-225 in 1951. Based on Boeing's earlier Model 500 gas generator, the T50's main application was in the QH-50 DASH helicopter drone of the 1950s. An up-rated version designated Model 550 was developed to power the QH-50D and was given the military designation T50-BO-12.
Two T50 were tested on a HTK-1 in the 1950s, which was the first test of twin turbine engine on a helicopter.

Variants

;T50-BO-1:
;T50-BO-2:
;T50-BO-4: at 6,000 output rpm, military rating turboprop.
;T50-BO-6:
;T50-BO-8: at 5,950 output rpm, revised reduction gear ratio, fuelsystem and other changes.
;T50-BO-8A:
;T50-BO-10: at 6,000 output rpm
;T50-BO-12:
;502-1-1:Auxiliary power unit
;502-2E:Turboprop, at 2,900 output rpm max. continuous at sea level.
;502-6:Engine for an engine-generator set used for magnetic minesweeping by the US Navy.
;502-7B:Compressed air generator.
;502-8A:Turboshaft.
;502-8B:Turboprop, at 37,500 compressor rpm for take-off.
;502-10B:Turboprop, at 37,500 compressor rpm for take-off.
;502-10C:Turboshaft power unit / gas producer
;502-10F:
;502-10V:
;502-10VB: at 3,000 output rpm, variant of -10V / T50-B0-4 with revised reduction gear ratio.
;502-10VC:
;502-11:Compressed air generator.
;502-11B:
;502-12B:
;502-W
;502-14:
;550-1:

Applications

;T50
;GT502