The Northrop YA-9 is a prototype attack aircraft developed for the United States Air Force A-X program. The YA-9 was passed over in preference for the Fairchild Republic YA-10 that entered production as the A-10 Thunderbolt II.

Jul 11, 2023 · In the mid-1960s, the U.S. Air Force presented aircraft manufacturers with an interesting challenge—design a clean-sheet close air support (CAS) aircraft to replace the aging Douglas A-1...

Aug 20, 2021 · This aircraft was built to the same sort of doctrine as the A9 and A-10 and its similarity to the A-9 has long caused speculation. Did the Soviets rip off Northrop’s aircraft? Personally, I think it is largely a case of similar design parameters resulting in similar designs.

The Northrop YA-9 was a prototype attack aircraft developed for the United States Air Force A-X program. The YA-9 was passed over in preference for the Fairchild Republic YA-10 that entered production as the A-10 Thunderbolt II.

Mar 25, 2016 · Two designs emerged from the competition that fit the specifications – the Northrop YA-9 and the Fairchild Republic YA-10. Both planes had similar characteristics and were capable of carrying a 30mm cannon, which had been a late addition to the Air Force’s wish list. To decide which plane to select, the powers to be decided to have a fly-off.

The Northrop A-9A was a large ground-attack aircraft which was designed in competition with the A-10. Although it was not chosen for production, it was a formidable aircraft in its own right. Like the A-10, it carried many "hard points" for weaponry beneath its wings. One A-9A is currently in the March Field Museum at March Air Force Base.

The sad reality is that the YA-9 and A-10 were born of a concept best depicted in initial artists impressions as being a jet powered Skyraider toting multiple-MER worth of Mk.82 over a fireball exploding out of the jungle.

The Northrop A-9A was a large ground-attack aircraft which was designed in competition with the A-10 in the early 1970's for the A-X requirement.

诺斯罗普A-9A是应美国空军对近距空中支援（CAS）/地面攻击飞机 (A-X计划)得需求而研制的，这是一种鲜为人知的飞机，空军要求这种飞机能从未经平整的跑道上起飞并能在战区上空长时间滞留，同时还要有足够的巡航速度在短时间内从机场飞到战区。 A-9与苏-25布局非常相似，上单翼双发单座，常规尾翼。 这种攻击机翼面面积很大，改善了操纵性能。 由莱康明公司专门负责发展其 涡扇发动机。 空军把性能需求发给12个航空器制造商。 其中有6个公司做出了答复并做出了设 …

Under the designation Northrop YA-9A, the company built two prototypes 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.