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Northrop XA-9



Under the designation Northrop YA-9A, the company built two prototypes (71-1367 and 71-1368) of a single-seat close-support aircraft as the company's submission for the competitive development phase of the USAF's A-X close-support aircraft competition in late 1972. Designed by Robert Bratt, Walt Fellers, Don Heinze, and Jerry Huben, the A-9 was a cantilever high-wing monoplane, powered by two 2722kg thrust Avco Lycoming ALF 502 turbofan engines, the first of the prototypes made its maiden flight on 30 May 1972 piloted by Lew Nelson. In competitive evaluation the YA-9A lost out to the YA-10A by Fairchild Republic.
Northrop A-9A 71-1367


Both of the A-9s built were passed on to NASA for further tests and were later retired to museums.

The first YA‑9A built, 71‑1367, first flew on May 30, 1972 and at the end of its military career was put on display at the Castle Air Force Base Museum, until its move back to Edwards.
In the storage yard at Edwards AFB on April 7, 2006. Previously on display at Castle AFB.




Engines: 2 x Lycoming F-102-LD-100, 33.4kN / 7500 lb
Max take-off weight: 18160 kg / 40036 lb
Empty weight: 10318 kg / 22747 lb
Wingspan: 17.7 m / 58 ft 1 in
Length: 16.3 m / 53 ft 6 in
Height: 5.2 m / 17 ft 1 in
Wing area: 54.9 sq.m / 590.94 sq ft
Max. speed: 740 km/h / 460 mph
Cruise speed: 322 mph
Ceiling: 40,000 ft
Range w/max.fuel: 4800 km / 2983 miles
Armament: 1 x 30mm machine-guns, 7264kg of bombs and missiles

Crew: 1


Northrop A-9



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