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Bell Helicopter Textron Model 214ST "SuperTransport"
United States — twin-turboshaft commercial transport helicopter


Archive Photos


Bell 214ST SuperTransport (Iraq AF-28166) at the Flying Leatherneck Aviation Museum, MCAS Miramar, San Diego, California

Overview


The Bell 214ST is a medium-lift, twin-engine helicopter derived from the ubiquitous UH-1 Huey series. Though it shares a type number with the somewhat-related Bell 214, the 214ST is larger and of quite different appearance. The Model 214ST is the largest helicopter built by Bell.

  • Role: Medium-lift helicopter
  • Manufacturer: Bell Helicopter Textron
  • First flight: February 1977
  • Introduced: 1979
  • Primary users: Iraqi Army, Venezuelan Air Force, CHC Helicopter
  • Produced: 1979-1990
  • Number built: 100
  • Developed from: Bell 214

Design and Development


The 214ST was originally developed as a military project from the Bell 214B BigLifter, specifically for production in Iran and the development by Bell was funded by the Iranian government. The interim prototype was first flown in February 1977 in Texas, with three conforming prototypes following in 1978.

The overthrow of the Shah in 1979, lead Bell to change production plans and build the 214ST at their Dallas-Fort Worth facility instead and launch it as a civil helicopter, rather than a military one. The military variant followed the civil one into production with deliveries commencing in 1982.

The Bell 214ST introduced some ground-breaking innovations for Bell, including, a one-hour run-dry transmission, fiberglass rotor blades, elastomeric rotorhead bearings and the option of either skid or wheeled landing gear.

The Bell 214ST (originally for "Stretched Twin", later "Super Transporter") has a 16-17 passenger capacity, and two 1,625 shp (1,212 kW) GE CT7-2A engines.

Bell built a total of 100 214ST's. The military version deliveries included 48 that went to Iraq in 1984, one to Brunei, 11 to Peru, nine to Thailand and four to Venezuela. Production of the 214ST was completed in 1991.

Operational History


Excluding those in Iraq, about 39 214ST's remain in use, some in the service of oil companies where the long range and twin engines are good for off shore work.

Military Operators

  • Brunei - 1
  • Dubai
  • Ecuador
  • Iran
  • Iraq - 48 (1984-2003)
  • Oman
  • Peru - 11
  • Philippines
  • Thailand - 9
  • Venezuela - 4

Civil Operators

  • Canada: CHC Helicopter
  • Norway: CHC Helikopter Service
  • United Kingdom: Bristow Helicopters, British Caledonian Helicopters
  • United States: Air Logistics (part of the Bristow Group); Helicopter Transport Services, LLC; Presidential Airways; Evergreen Helicopters,
Inc.

Specifications (214ST)


General Characteristics

  • Crew: 1 or 2
  • Capacity: 16 or 17 passengers or equivalent cargo
  • Length: 49 ft 4 in (15.03 m))
  • Rotor diameter: 52 ft 0 in (15.85 m)
  • Height: 15 ft 11 in (4.84 m)
  • Empty weight: 9,481 lb (4,300 kg)
  • Max takeoff weight: 17,500 lb (7,938 kg)
  • Powerplant: 2 × General Electric CT7-2A turboshaft, 1,625 shp (1,215 kW) each

Performance

  • Maximum speed: 161 mph (259 km/h)
  • Cruise speed: 159 mph (256 km/h)
  • Range: 533 sm (858 km)
  • Service ceiling: no data ft (Dependent on environmental factors such as weight, outside temp., etc)
  • Rate of climb: 1780 ft/min (9.0 m/s)

References


  1. Photos: John Shupek, Copyright © 2009 Skytamer Images. All Rights Reserved
  2. Wikepedia. Bell 214ST, 28 November 2009

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