Bell UH-1N Twin Huey

The Bell UH-1N Twin Huey is a medium military helicopter that first flew in April, 1969. The UH-1N has a fifteen seat configuration, with one pilot and fourteen passengers. In cargo configuration the UH-1N has an internal capacity of 220 ft³ (6.23 m³). An external load of 5,000 lb (2,268 kg) can be carried by the UH-1N. The CUH-1N (later CH-135) Twin Huey was the original version, first ordered by the Canadian Forces.

Role Utility helicopter
National origin United States / Canada
Manufacturer Bell Helicopter
First flight April 1969
Introduction October 1970
Status In service
Primary users United States Marine Corps
Canadian Forces
United States Navy
United States Air Force
Produced 1969-1970s
Developed from Bell UH-1H Iroquois
Variants Bell 212
Bell UH-1Y Venom

Specifications (USMC UH-1N, as modified)

UH-1N Twin Huey Drawing.svg
U.S. Navy HH-1N cockpit
HH-1N rotor head

Data from USMC UH-1N Fact Sheet, The International Directiory of Military Aircraft, 2002-2003

General characteristics

  • Crew: 4 (Pilot, copilot, crew chief, gunner)
  • Capacity: 6-8 combat-equipped troops, or equivalent cargo
  • Length: 41 ft 8 in (12.69 m)
  • Rotor diameter: 48 ft 0 in (14.6 m)
  • Height: 14 ft 5 in (4.4 m)
  • Disc area: 1,808 ft² (168.0 m²)
  • Empty weight: 6,000 lb (2,721.5 kg)
  • Loaded weight: 10,500 lb (4,762.7 kg)
  • Useful load: 4500 lb (2038.0 kg)
  • Max. takeoff weight: 10,500 lb (4,762.7 kg)
  • Powerplant: 2 × Pratt & Whitney Canada T400-CP-400 turboshaft, 900 shp (671 kW), (total 1,250 shp) each

Performance

  • Maximum speed: 130 knots (135 mph, 220 km/h)
  • Cruise speed: 110 knots (126 mph, 207.3 km/h)
  • Range: 248 nmi (286 mi, 460 km)
  • Service ceiling: 17,300 ft (5,273 m)
  • Rate of climb: 1,755 ft/min (8.9 m/s)
  • Power/mass: hp/lb (W/kg)

Armament

  • 2.75-inch (70 mm) rocket pods,
  • GAU-16 .50 Cal. machine gun,
  • GAU-17 7.62mm minigun or M240 7.62mm lightweight machine gun

Source

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