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Fairchild T-46

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Title: Fairchild T-46  
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Subject: Fairchild aircraft, Garrett F109, Cessna T-37 Tweet, Fairchild PT-19, Sherman Fairchild
Collection: Fairchild Aircraft, United States Military Trainer Aircraft 1980–1989
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Fairchild T-46

T-46 "Eaglet"
A T-46 out of Edwards AFB
Role Jet trainer aircraft
Manufacturer Fairchild Aircraft
First flight October 15, 1985
Primary user United States Air Force
Number built 3

The Fairchild T-46 (nicknamed the "Eaglet") was an American light jet trainer aircraft of the 1980s. It was cancelled in 1986 with only three aircraft being produced.

Contents

  • Design and development 1
  • Operators 2
  • Aircraft on display 3
  • Specifications (T-46) (performance estimated) 4
  • See also 5
  • References 6
  • External links 7

Design and development

The United States Air Force (USAF) launched its Next Generation Trainer (NGT) program to replace the Cessna T-37 Tweet primary trainer in 1981.[1] Fairchild-Republic submitted a shoulder-winged monoplane with a twin-tail, powered by two Garrett F109 turbofans and with pilot and instructor sitting side-by-side.[2]

In order to validate the proposed aircraft's design, and to explore its flight handling characteristics, Fairchild Republic contracted with Ames Industries of Bohemia, New York to build a flyable 62% scale version. Burt Rutan's Rutan Aircraft Factory (RAF) in Mojave, California was contracted to perform the flight test evaluations, with test pilot Dick Rutan doing the flying. The scale version was known at RAF as the Model 73 NGT, this flying on 10 September 1981.[3]

Fairchild's design, to be designated T-46, was announced winner of the NGT competition on July 2, 1982,[2] with the USAF placing an order for two prototypes and options for 54 production aircraft.[4] It was planned to build 650 T-46s for the USAF by 1991.[5]

The aircraft first flew on October 15, 1985,[6] six months later than originally programed date of April 15. Costs had increased significantly during the development process, with the predicted unit cost rising from $1.5 million in 1982 to $3 million in February 1985.[5] The 1985 Gramm–Rudman–Hollings Balanced Budget Act mandated spending cuts for the US Government in an attempt to limit the national debt,[5] and while testing did not reveal any major problems,[7] Secretary of the Air Force Russell A. Rourke cancelled procurement of the T-46, while allowing limited development to continue.[5] While attempts were made in Congress to reinstate the program, which resulted in the FY 1987 budget being delayed, an amendment was passed to the 1987 Appropriations Bill to forbid any spending on the T-46 until further evaluation of the T-46 against the T-37 and other trainers took place.[8]

The project was cancelled a little more than a year later, for reasons that largely remain controversial. The T-46 was the last project of the Fairchild Republic Corporation, and after the program termination Fairchild had no more income. Without any new contracts and the NGT program cancelled, the company closed the Republic factory in Farmingdale, New York, bringing 60 years of Fairchild aircraft manufacturing to an end.

Two T-46 aircraft circling Edwards AFB

The aircraft itself featured a side by side configuration, a twin (or "H") tail (similar to the company's A-10), ejection seats, pressurization, and two turbofan engines. Had it gone into full production the NGT program called for 650 aircraft being built up to 1992. There was potential for some overseas sales as well, such as in the light ground attack role in addition to its role as a trainer.[9]

Operators

 United States

Aircraft on display

All three prototypes have been preserved:

Specifications (T-46) (performance estimated)

T-46, X-32 and YF-23 in the restoration area of the National Museum of the United States Air Force

Data from Tweety-Bird Replacement[11]

General characteristics

Performance

  • Maximum speed: 397 knots (457 mph, 735 km/h) at 25,000 ft (7,600 m)
  • Cruise speed: 333 knots (383 mph, 616 km/h) at 45,000 ft (13,700 m)
  • Range: 1,190 nm (1,369 mi, 2,205 km)
  • Service ceiling: 46,500 ft (14,175 m)
  • Rate of climb: 4,470 ft/min (22.7 m/s)
  • Take-off distance: 1,520 ft (463 m) (to 50 ft (15 m))

See also

Aircraft of comparable role, configuration and era

References

  1. ^ Braybrook 1985, p. 274.
  2. ^ a b Braybrook 1985, p. 275.
  3. ^ Braybrook 1985, pp. 275–276.
  4. ^ Flight International 17 July 1982, p. 122.
  5. ^ a b c d Mormillo 1986, p. 650.
  6. ^ Flight International 26 October 1985, p. 8.
  7. ^ Mormillo 1986, pp. 651–652.
  8. ^ Flight International 8 November 1986, p. 9.
  9. ^ Warwick 1985, p. 29.
  10. ^ Fact Sheet: FAIRCHILD REPUBLIC T-46A". National Museum of the USAF. Retrieved 15 May 2011.
  11. ^ Braybrook 1985, p. 276.
  • Braybrook, Roy. "Tweety-Bird Replacement". Air International, June 1985, Vol 28, No. 6. pp. 273–280.
  • "Fairchild wins NGT". Flight International, 17 July 1982, p. 122.
  • Mormillo, Frank B. "T-46A: The Trainer of the Future?" Aircraft Illustrated, December 1986, Vol. 19, No. 12. pp. 648–653.
  • "T-46A is flown". Flight International 26 October 1985, p. 8.
  • "USAF trainer contest opened to all" Flight International, 8 November 1986, p. 9.
  • Warwick, Graham "T-46: A Class Apart". Flight International, 13 April 1985, pp. 24–29.

External links

  • Global Security Article on the T-46
  • Includes photo of RAF Model 73 flown by Dick Rutan
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