Bell 204/205
Kfd-205-N408KC-050430-05 (framed).jpg
A Kern County Fire Department Bell 205 departs from the Mojave Spaceport
Role Multipurpose utility helicopter
National origin United States
Manufacturer Bell Helicopter
First flight 22 October 1956
Introduction 1959
Status Production completed
Produced 1956–1980s
Developed from Bell UH-1 Iroquois
Variants Bell 212
Bell 214

The Bell 204 and 205 are the civilian versions of the UH-1 Iroquois single-engine military helicopter of the Huey family of helicopters. They are type-certificated in the transport category and are used in a wide variety of applications, including crop dusting, cargo lifting and aerial firefighting.

Development

A Bell XH-40, a prototype of the UH-1 and Bell 204
A Bell XH-40, a prototype of the UH-1 and Bell 204

Bell designed its Model 204 in response to a 1955 United States Army requirement for a utility helicopter. The 204 was a giant step forward in helicopter design, being one of the first to be powered by a turboshaft. The turboshaft engine radically improved the practicality of the helicopter due to its light weight and high power-to-weight ratio, lower fuel consumption, and lower maintenance and operating costs. The use of a turboshaft in the 204 allowed it to carry a useful payload over respectable ranges and at reasonable speeds, which resulted in the 204 and subsequent 205 becoming the most successful western helicopter series in terms of numbers built.[1]

The civil 204B was first delivered in 1961. The subsequent Model 205A-1 is equivalent to the UH-1H, which, compared to the 204, is longer, larger, and has better performance and a more powerful engine.[1]

Over 60 civil Model 204B helicopters had been delivered by 1967, while further examples were built by Agusta-Bell until 1973. 12,000 Model 205s (including civil 205A-1s) were built by Bell and Agusta-Bell up to the early 1980s. Numerous ex-military 204s and 205s were converted for commercial use.[1]

Variants

A Bell 205A-1, used by Royal Thai Police
A Bell 205A-1, used by Royal Thai Police

Bell 204

Bell Helicopter's company designation of the UH-1B.

Bell 205

Bell Helicopter's company designation of the UH-1H.

A Bell 205A-1 on firefighting duty with Valhalla Helicopters
A Bell 205A-1 on firefighting duty with Valhalla Helicopters

Experimental models

Upgrades

Derivatives

A Bell 205A-1 with its helitack firefighting crew with the Ontario Ministry of Natural Resources in 1995
A Bell 205A-1 with its helitack firefighting crew with the Ontario Ministry of Natural Resources in 1995

Operators

Military operators

For all military operators, regardless of the actual model, see List of UH-1 Iroquois operators
Iranian Police Aviation AB-205A
Iranian Police Aviation AB-205A

Government operators

 Canada
 Iran
 Thailand
 Taiwan
 United States
California Department of Forestry "Super Huey", formerly an EH-1H, assigned to the Bieber Helitack crew, takes off from the Mojave Airport
California Department of Forestry "Super Huey", formerly an EH-1H, assigned to the Bieber Helitack crew, takes off from the Mojave Airport

Specifications (204B)

Bell UH-1 Iroquois Drawing.svg
Bell 204 instrument panel
Bell 204 instrument panel

Data from The International Directory of Civil Aircraft [1]

General characteristics

Performance

See also

Related development

Related lists

References

  1. ^ a b c d Frawley, Gerard: The International Directory of Civil Aircraft, 2003–2004, page 44. Aerospace Publications Pty Ltd, 2003. ISBN 1-875671-58-7
  2. ^ a b c d FAA Type Certificate Data Sheet H1SW for the 204, 205A, 205A-1 and 210 models
  3. ^ Mutza, Wayne: UH-1 Huey In Action, Aircraft No.75, Squadron/Signal Publications, 1986. ISBN 0-89747-179-2 p.10
  4. ^ HISTORY|SUBARU BELL 412EPX|SUBARU Aerospace Company
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  6. ^ a b c Greg Goebel's Vectorsite in Public Domain Archived April 5, 2011, at the Wayback Machine
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  20. ^ of the UH-1 on Airliners.net
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Bibliography

The initial version of this article was based on a public domain article from Greg Goebel's Vectorsite.