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Ayres Thrush

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Top speed
  
225 km/h

Wingspan
  
14 m

Length
  
8.89 m

First flight
  
1956

Ayres Thrush Ayres S2RT34 Turbo Thrush Photos AirplanePicturesnet

The Ayres Thrush, formerly the Snow S-2, the Aero Commander Ag Commander and the Rockwell Thrush Commander, is an American low-wing agricultural aircraft produced by Ayres Corporation and more recently by Thrush Aircraft. 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 61 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

Ayres Thrush Snow Rockwell Ayres S2 Thrush Commander Thrush

Ayres thrush s2r commander cropduster 3d model from cgtrader com


Design and development

Ayres Thrush N4012G Private Ayres S2RT34 Turbo Thrush at Yuma Photo ID

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. 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 Thrush Ayres Thrush amp Rockwell Thrush Commander pictures technical data

The S-2 and its several variants have been purchased by agricultural spraying operators in many countries. Large numbers are operated in the United States and Australia. Other countries using the type include Costa Rica, France, Guyana, Iran, Israel, Jamaica, Netherlands and the United Kingdom.

Ayres Thrush Ayres Thrush amp Rockwell Thrush Commander pictures technical data

Ayres developed a special anti-narcotics crop-spraying version of the Turbo-Thrush for the United States Department of State. This version, known as the Narcotics Eradication Delivery System (NEDS) featured an armored cockpit and engine to protect against hostile ground fire. Nine were sold to the Department of State between 1983 and 1985. Ayres also attempted to market a militarized version as the Ayres Vigilante, intended for the Close Air Support role, but this failed to attract customers. IOMAX USA of North Carolina, which had previously modified Air Tractor AT-802 agricultural aircraft as reconnaissance/attack aircraft, has developed the Archangel attack aircraft based on the S-2R-660. The United Arab Emirates has ordered 24 Archangels, with delivery from June 2015.

Ayres Thrush httpsuploadwikimediaorgwikipediacommonsthu

Two Thrush 510Gs were modified to perform a counter-insurgency role by the Austrian company Airborne Technologies at the direction of Erik Prince, the former head of Blackwater, but in the absence of an export license the aircraft have not been used operationally.

Snow Aeronautical

(per Simpson, 2005, p. 39)

Ayres Thrush Ayres Thrush Wikipedia
S-1
initial prototype with open cockpit.
S-2
pre-production version of S-1 - three built.
S-2A
initial production version, powered by Continental engine – 73 built.
S-2B
S-2 powered by 450 hp Pratt & Whitney R-985 – 19 built.
S-2C
refined production version – 214 built.
S-2C-600
S-2C re-engined with Pratt & Whitney R-1340-AN1.
S-2D
6,000 lb take-off weight – 105 built.

Aero Commander

S-2D Ag Commander

Rockwell

Thrush Commander 600
Thrush Commander 800
powered by Wright R-1300.

Marsh

S2R-T Turbo Thrush
Rockwell Thrush Commanders converted to turbine power by Marsh Aviation using Garrett AiResearch TPE331-1-101 engines.

Ayres

S-2R 1340
equivalent to Thrush Commander 600.
S-2R 1820
Bull Thrush
Pezetel Thrush
powered by PZL-3.
S-2R-T
turboprop powered versions equipped with Pratt & Whitney Canada PT6A.

Thrush Aircraft

Thrush Model 400
Thrush Model 510G
General Electric H80 powered
Thrush Model 510GR
Honeywell TPE 331 powered
Thrush Model 510P
Pratt & Whitney Canada PT6A-34 powered
Thrush Model 550
Pratt & Whitney Canada PT6A-65AG powered
Thrush Model 710
Pratt & Whitney Canada PT6A-65AG powered
Archangel
Thrush 550G modified as two-seat armed attack aircraft. 1,600 shp (1,200 kW) PT6A-67F engine. Fitted with 6 hardpoints for 6,000 lb (2,700 kg) of external stores.

Specifications (Thrush Commander 600)

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

General characteristics

  • Crew: 1
  • Payload: 400 US Gal (1,514 L)
  • Length: 29 ft 2 in (8.89 m)
  • Wingspan: 44 ft 4 in (13.51 m)
  • Height: 9 ft 2 in (2.79 m)
  • Wing area: 326.6 sq ft (30.34 m²)
  • Empty weight: 3,700 lb (1,678 kg)
  • Max. takeoff weight: 6,000 lb (3,130 kg)
  • Powerplant: 1 × Pratt & Whitney R-1340 Wasp 9-cylinder air-cooled radial engine, 600 hp (448 kW)
  • Propellers: Hamilton-Standard 12D40 2-blade metal constant speed propeller propeller, 1 per engine
  • Performance

  • Maximum speed: 140 mph (122 knots, 225 km/h)
  • Cruise speed: 124 mph (108 knots, 200 km/h) (70% power)
  • Stall speed: 66 mph (57.5 knots, 107 km/h) flaps down
  • Ferry range: 403 mi (350 nmi, 648 km)
  • Service ceiling: 15,000 ft (4,575 m)
  • Rate of climb: 900 ft/min (4.6 m/s)
  • References

    Ayres Thrush Wikipedia


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