Design and Development
The North American NA-50 was developed by the North American Aviation as a simple single seat, low-wing, single engine 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 engine 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 870 hp (650 kW) Wright R-1820-77 radial air-cooled engine and 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.
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.
Read more about this topic: North American P-64
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