Ayres Thrush, formerly the
Snow S-2, Aero,
built between 1956 to present by Ayres Corporation.
Piper PA-25 Pawnee is an agricultural aircraft
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History Ayres Thrush, formerly the Snow S-2, Aero,
built between 1956 to present by Ayres Corporation Thrush Aircraft.
The Ayres Thrush, formerly the Snow S-2,[1] Aero Commander Ag Commander, and Rockwell Thrush Commander, is an American 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 68 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.
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Design and development
Early Snow S-2A of 1959 with open cockpit and roll-over protection bar at Santa Fe, New Mexico, June 1997, in pseudo-USAAF markings The Thrush, designed by Leland Snow, 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 of 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"
Variants
Aero Commander S-2D exhibited at the 1967 Paris Air Show 
Ayres S2R-T Thrush powered by a Pratt & Whitney Canada PT-6 turboprop 
Ayres S-2R Thrush 
Model 510G 
510G armed by Bulgarian LASA Engineering Snow Aeronautical
(per Simpson, 2005, p. 39)
- S-1
- initial prototype with open cockpit.
- S-2
- pre-production version of S-1 – 3 built.
- S-2A
- initial production version, powered by Continental engine – 73 built.
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Photo Gallery
Ayres Thrush, formerly the Snow S-2, Aero,
built between 1956 to present by Ayres Corporation Thrush Aircraft.
Ayres Thrush, formerly the Snow S-2, Aero, built between 1956 to present by Ayres Corporation Thrush Aircraft.
General characteristics
- Crew: one
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Capacity:
- 400 US gal (330 imp gal; 1,500 L) liquids or
- 3,280 lb (1,490 kg) dry chemicals
- Length: 29 ft 2 in (8.89 m)
- Wingspan: 44 ft 4 in (13.51 m)
- Height: 9 ft 2 in (2.79 m)
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Powerplant
- Max takeoff weight: (3,130 kg)
- Fuel capacity: (88 imp gal; 400 L)
- Powerplant: 1 × Pratt & Whitney R-1340 Wasp 9-cylinder air-cooled radial engine, 600 hp (450 kW)
Specifications
- Maximum speed: (230 km/h,)
- Cruise speed: (200 km/h,)
- Stall speed: 66 mph (106 km/h, 57 kn) (at 6,000 lb (2,700 kg), flaps down)
- Ferry range: 403 mi (649 km, 350 nmi) (70% power)
- Service ceiling: 15,000 ft (4,600 m)
Aircraft of comparable role
Links to Youtube & Others
In 2019, Australia's Civil Aviation Safety Authority formally approved the issuing to eTugs of Certificates of Airworthiness in the Limited category for the purpose of glider towing.
Ayres Thrush, formerly the Snow S-2, Aero,
Early models of the Pawnee had a single fuel tank located between the agricultural hopper and the engine.
Youtube Link
A useful design aspect was the ability to carry a mechanic on a jump seat fitted in the hopper to assist with operations at remote stations
Read more in Piper aircraft,Inc. Aviation
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