There is little doubt that most fans of aviation history are familiar with the NA-16 family of training aircraft designed and built by North American Aviation. This group includes the BT-9, BT-14, AT-6, SNJ, Yale and Harvard, as well as many variations on these principal types, produced in the tens of thousands. Less well known is a small group of family members that were designed and built for war, or were at least capable of protecting themselves...
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History