Bell 207
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| Bell 207 Sioux Scout | |
|---|---|
 Bell Model 207 Sioux Scout |
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| Type | Experimental attack helicopter |
| Manufacturer | Bell Helicopter |
| Developed from | Bell 47 |
The Bell 207 Sioux Scout was an early helicopter gunship developed privately for US forces in Vietnam. It featured a tandem cockpit, stub wings for weapons, and a chin-mounted gun turret.
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[edit] Design and development
The Bell company had been interested in the concept of a dedicated helicopter gunship since 1958, and unveiled a mockup of such a rotorcraft in June 1962. The "D225 Iroquois Warrior" was based on the engine and mechanics of the Huey, but had a new sharklike fuselage that gave it the looks of a fighter. It had a tandem two-seat cockpit with a gunner in front and a pilot in back, with the seats stepped to give the pilot good forward visibility; a turret with an automatic grenade launcher in the nose; a forward-firing 20 millimeter cannon in a belly pack; and stub wings with stores pylons to carry munitions, such as six SS-11 wire-guided missiles.[1]
The Army liked the idea and awarded Bell a contract in December 1962 to develop a proof-of-concept demonstrator. Bell engineers quickly modified the company's well-established Model 47 / OH-13 Sioux piston-powered helicopter to produce the "Model 207 Sioux Scout", which was completed in August 1963. The Sioux Scout featured a streamlined fuselage, with a tandem cockpit and a chin turret with two 7.62 millimeter M60 machine guns.[1] It only generally resembled the Iroquois Warrior mockup and was too light for actual combat use, but after evaluating the Sioux Scout, the Army was impressed.
[edit] Specifications
[edit] Bell 207
[edit] General characteristics
- Crew: Two in tandem
- Powerplant: One Lycoming TVO-435-F1A Flat-6 piston engine (280 hp/210 kW)
- Armament: One Emerson Electric TAT-101 chin-turret armed with two 7.62mm machine-guns
[edit] Bell 47G (for comparison)
This aircraft article is missing some (or all) of its specifications. If you have a source, you can help Wikipedia by adding them.Data from International Directory of Civil Aircraft[2]
General characteristics
- Crew: Three
- Length: 31.6 ft (9.63 m)
- Rotor diameter: 37.2 ft (11.32 m)
- Height: 9.28 ft (2.83)
- Disc area: 1,085 ft² (m100.8 m²)
- Empty weight: 1,893 lb (858 kg)
- Max takeoff weight: 2,950 lb (1,340 kg)
- Powerplant: 1× Lycoming TVO-435-F1A Flat-6 piston engine, 280 hp (210 kW)
Performance
- Maximum speed: 91 kt (105 mph, 169 km/h)
- Cruise speed: 73 kt (84 mph, 135 km/h) at 5,000 ft (1,525 m)
- Range: 214 nm (245 miles, 395 km) at 6,000 ft (1,830 m)
- Rate of climb: 860 ft/min (262 m/min)
- Hover ceiling: 17,700 ft IGE; 12,700 ft OGE (5,400 m IGE; 3900 m OGE)
[edit] See also
Related development
Comparable aircraft
Related lists
[edit] References
- ^ a b Greg Goebel's Vectorsite
- ^ Frawley, Gerard: The International Directory of Civil Aircraft, 2003-2004, page 420. Aerospace Publications Pty Ltd, 2003. ISBN 1-875671-58-7
The initial version of this article was based on a public domain article from Greg Goebel's Vectorsite.
[edit] External links
- Arthur M. Young story and the development of the Model 47 (PDF file with photographs)
- Bell 47 Enthusiast site
- Model 47G specs from The International Directory of Civil Aircraft by Gerard Frawley
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