Gyrodyne QH-50 DASH - Variants

Variants

DSN-1

U.S. Navy designation for nine pre-production aircraft, redesignated QH-50A in 1962.

DSN-2

U.S. Navy designation for three pre-production aircraft, redesignated QH-50B in 1962.

DSN-3

U.S. Navy designation for 373 production aircraft, redesignated QH-50C in 1962.

QH-50A

DSN-1 redesignated in 1962, nine pre-production aircraft for evaluation, with a 72 hp (54 kW) Porsche flat-four piston engine.

QH-50B

DSN-2 redesignated in 1962, three pre-production aircraft powered by two 86 hp (64.5 kW) Porsche flat-four piston engines.

QH-50C

DSN-3 redesignated in 1962, production aircraft powered by a 300 shp (225 kW) Boeing T50-8A turboshaft engine, 373 built.

QH-50D

production aircraft with a larger 365 shp (272 kW) Boeing T50-12 turboshaft engine, fibreglass rotor blades and increased fuel capacity, 377 built.

QH-50DM

There were 10 modified QH-50D manufactured (Serial number 150AO- 160AO). The "DM" 550shp was supplied by a modified version of the Boeing T50-12. These were used for military reconnaissance for the United States Army during the Vietnam War on 26 September 1959 to 30 April 1975.

YQH-50E

Three QH-50D aircraft modified with Allison T63-A-5A engines.

QH-50F

Proposed production version of YQH-50E, not built.

QH-50H

Proposed twin-engine version of QH-50F with larger fuselage and rotors, not built.