Air Tractor AT-300

The Air Tractor AT-300 is a family of agricultural aircraft that first flew in the United States on September 1973. Type certification was awarded to Air Tractor in November the same year, and serial production commenced in 1976. Of low-wing monoplane taildragger configuration, they carry a chemical hopper between the engine firewall and the cockpit.

AT-300 family
AT-301
Role Agricultural aircraft
Manufacturer Air Tractor
First flight 1973
Introduction 1976
Status Active
Produced 1973-present


Variants
  • AT-300 - prototype and early production models with Pratt & Whitney R-985 engine and 320 US gal (1,200 L) hopper
  • AT-301 - main production model with Pratt & Whitney R-1340 engine
    • AT-301B - AT-301 with 350 US gal (1,320 L) hopper
  • AT-302 - turboprop version with Lycoming LTP101 engine
    • AT-302A - AT-302 with 385 US gal (1,460 L) hopper

Specifications (AT-301A)

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

General characteristics

  • Crew: 1
  • Capacity: 320 US gal (270 imp gal; 1,200 L) hopper
  • Length: 27 ft 0 in (8.23 m)
  • Wingspan: 45 ft 1 1⁄4 in (13.748 m)
  • Height: 8 ft 6 in (2.59 m)
  • Wing area: 270 sq ft (25 m2)
  • Aspect ratio: 7.5:1
  • Airfoil: NACA 4415
  • Empty weight: 3,800 lb (1,724 kg) (spray equipped)
  • Gross weight: 7,400 lb (3,357 kg)
  • Fuel capacity: 126 US gal (105 imp gal; 480 L)
  • Powerplant: 1 × Pratt & Whitney R-1340 radial engine, 600 hp (450 kW)
  • Propellers: 2-bladed Hamilton Standard 12D40/6101A-12 constant-speed propeller, 9 ft 1 in (2.77 m) diameter

Performance

  • Maximum speed: 168 mph (270 km/h, 146 kn) at sea level
  • Cruise speed: 120–140 mph (190–230 km/h, 100–120 kn) (typical working speed)
  • Stall speed: 56 mph (90 km/h, 49 kn) (normal landing weight)
  • Range: 540 mi (870 km, 470 nmi)
  • Rate of climb: 1,600 ft/min (8.1 m/s)

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References

Notes
  1. Taylor 1988, pp. 322–323

Bibliography
  • Simpson, R. W. (1995). Airlife's General Aviation. Shrewsbury: Airlife Publishing. p. 31.
  • Taylor, John W. R., ed. (1988). Jane's All The World's Aircraft 1988–89. Coulsdon, UK: Jane's Defence Data. ISBN 0-7106-0867-5.CS1 maint: ref=harv (link)
  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 44.
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