Ayres Thrush

Thrush
The radial engine powered Ayres S-2R Thrush
Role Aerial application aircraft
Manufacturer Ayres Corporation
Designer Leland Snow
First flight 1956
Number built less than 2,000

The Ayres Thrush, formerly the Snow S-2,[1] the Aero Commander Ag Commander and the Rockwell Thrush Commander, is an American low-wing agricultural aircraft produced by Ayres Corporation. It is one of the most successful and long-lived agricultural application aircraft types in the world, with almost 2,000 sold since the first example flew 56 years ago. Typical of agricultural aircraft, it is a single-seat monoplane of conventional taildragger configuration. Originally powered by a radial piston engine, most examples produced since the 1980s have been turboprop-powered.

Contents

Design and development

The Thrush was designed by Leland Snow and first flew in 1956, and before long was being produced in series as the S-2 by the company he founded, Snow Aeronautical.[1] In 1965, the corporation and all its assets were purchased by the Aero Commander division of Rockwell, which put it into production alongside the CallAir A-9 that it had also acquired, branding both unrelated (though similar) machines as "Ag Commanders". When Rockwell dropped the Aero Commander brand, the S-2 was renamed the "Thrush Commander".

In 1977, Rockwell sold off the production rights to the aircraft and the production facility at Albany, Georgia, which were purchased by Ayres Corporation, a firm which had been built on retro-fitting turboprop engines to Thrush Commanders. On June 30, 2003, Ayres' assets were purchased by Thrush Aircraft, the current producer of the aircraft.

Ayres developed a special anti-narcotics crop-spraying version of the Turbo-Thrush for the US State Department. This version, known as the Narcotics Eradication Delivery Stystem (NEDS) featured an armoured cockpit and engine to protect against hostile ground fire. Nine were sold to the State Department in 1983-85.[2] Ayres also attempted to market a militarised version as the Ayres Vigilante, intended for the Close Air Support role, but this failed to attract customers.[3]

Variants

Snow Aeronautical

(per Simpson, 2005, p. 39)

Aero Commander

Rockwell

Marsh

Ayres

Thrush Aircraft

Specifications (Thrush Commander 600)

Data from Jane's All The World's Aircraft 1976-77 [4]

General characteristics

Performance

See also

Related development
Aircraft of comparable role, configuration and era

References

  1. ^ a b Macdonald, 1964. p.138.
  2. ^ J W R Taylor 1988, p. 328.
  3. ^ Johnson, Robert Craig (1998). "Combat Crop Dusters: the Turbo-Thrush NEDS and the V-1-A Vigilante". http://worldatwar.net/chandelle/v3/v3n3/articles/ayres.html. Retrieved 2008-08-03. 
  4. ^ Taylor 1976, p.379.

Bibliography

  • Green, William. Aircraft Handbook. London. Macdonald & Co. (Publishers) Ltd., 1964.
  • Simpson, Rod. The General Aviation Handbook. Midland Publishing. 2005. ISBN 1-85780-222-5.
  • Taylor, John W R. (editor). Jane's All The World's Aircraft 1976-77. London: Jane's Yearbooks, 1976. ISBN 0-354-00538-3.
  • Taylor, John W R. (editor). Jane's All The World's Aircraft 1988-89. Coulsdon, Surrey, UK: Jane's Information Group, 1988. ISBN 0-7106-0867-5.

External links