Engineering:Air Tractor AT-501

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AT-500 family
Air Tractor AT-501 (4730868201).jpg
Air Tractor AT-501
Role Agricultural aircraft
Manufacturer Air Tractor
First flight 25 April 1986

The Air Tractor AT-500 is a family of agricultural aircraft that first flew in the United States on 25 April 1986, manufactured by Air Tractor Inc. Of monoplane low-wing, taildragger configuration, they carry a chemical hopper between the engine firewall and the cockpit. Compared with their predecessor, the AT-500 family mostly feature a wingspan increased to 50 ft (15.2 m), and an additional fuselage stretch of 22 in (56 cm), allowing for a larger chemical hopper. Almost all variants have a second seat for a passenger or observer.


Variants

AT-500
Prototype.
AT-501
Piston-powered version with Pratt & Whitney R-1340 engine
AT-502
Main production version with Pratt & Whitney Canada PT6A engine and one seat
AT-503
production version with Pratt & Whitney Canada PT6A engine and two seats
AT-503A
Dual-control trainer version of AT-503 with shorter AT-401 wings
AT-503T
Dual-control trainer version of AT-503 with shorter AT-401 wings

Specifications (AT-503)

Data from Jane's All The World's Aircraft 1988-89 [1]

General characteristics

  • Crew: one pilot
  • Capacity:
    • 1 passenger
    • 502 US gal (1,900 L) chemicals
  • Length: 33 ft 6 in (10.21 m)
  • Wingspan: 48 ft 0 in (14.63 m)
  • Height: 9 ft 9½ in (2.99 m)
  • Wing area: 288.0 ft2 (26.76 m2)
  • Empty weight: 4,650 lb (2,109 kg)
  • Gross weight: 10,480 lb (4,754 kg)
  • Powerplant: 1 × Pratt & Whitney PT6A-45R turboprop, 1,100[2] hp (820 kW)

Performance

  • Maximum speed: 220 mph (340 km/h)
  • Range: 800 miles (1,287 km)
  • Service ceiling: 36,000 ft (10,975 m)
  • Rate of climb: 3,500 ft/min (17,78 m/s)

References

Notes
  1. ↑ Taylor 1988, p. 324.
  2. ↑ shaft horsepower
Bibliography
  • Simpson, R. W. (1995). Airlife's General Aviation. Shrewsbury: Airlife Publishing. pp. 31–32. 
  • Taylor, John W.R. (editor) (1988). Jane's All The World's Aircraft 1988-89. Coulsdon, UK: Jane's Defence Data. ISBN 0-7106-0867-5. 

External links

  • AT-502 in Action at Milford, Nebraska AT-502





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