NA-50 The North American Aviation
NA-50 was developed as a simple single-seat, low-wing, single-engined fighter for export. The design was developed from the
NA-16/
BT-9 basic training aircraft of 1935. The NA-16 evolved into a series of aircraft that were some of the most widely used advanced and basic training aircraft produced by any country, and provided the basic design for a single-engined fighter intended for small countries that needed a simple aircraft with modern capabilities and features. The NA-50
Torito (Spanish slang for "little bull"), built for Peru, was a single-seat fighter design based on the two-seat Basic Combat Demonstrator NA-44. The NA-50 was powered by an 840 hp (626 kW) Wright R-1820-G3 radial air-cooled
engine that gave the NA-50 a top speed of at . It was armed with two .30 in (7.62 mm)
M1919 Browning machine guns. The aircraft were manufactured in May 1939, and test-flown at the factory.
NA-68 In 1940, the
Royal Thai Air Force ordered six aircraft similar to the NA-50 that were designated
NA-68. The changes in the NA-68 included a modified landing gear, new outer wings, heavier armament, and redesigned tail surfaces similar to those adopted on later production trainers. North American test pilot Lewis Waite flew the first NA-68 on 1 September 1940. ==Operational history==