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The YH-21A Workhorse, powered by a
1425 hp Wright engine, was used by the USAF in transport and
med-evac roles, it was also used by the U.S. Army as the
H-21C Shawnee but when used in Vietnam proved to be
impractical in the hot climate and far too vulnerable to
ground fire, as soon as practical (1964/1965) it was
replaced by the UH-1
Huey and the CH-47 Chinook helicopters.
Vertol CH-21C Specifications:
- Crew: Pilot, co-pilot, crew
chief (plus one or two gunners in Vietnam)
- Capacity: 20 troops or 12
stretchers
- Length: 52 ft 6 in (16.0 m)
- Rotor diameter: 44 ft 0 in
(13.4 m)
- Height: 15 ft 9 in (4.80 m)
- Empty weight: 8,950 lb
(4,058 kg)
- Loaded weight: 15,200 lb
(6,893 kg)
- Engine: Single 1,425
hp (1,063 kW)
Wright R-1820-103 Cyclone radial engine
- Maximum speed: 127 mph (110
kn, 204 km/h)
- Range: 265 mi (230 nmi, 426
km)
- Service ceiling 9,450 ft
(2,880 m)
Armament:
- One or two .50 (12.7 mm) machine guns
(or)
- One or two 7.62 mm M60 machine guns
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