The North American NA-35 was a training aircraft designed by North American Aviation. It was first test-flown in January 1940 by Vance Breese. Although announced for trade the month after, the project was pushed aside by plant expansions and the development of the P-51 Mustang. Further test flights were conducted and construction began on a few more aircraft, but the project remained stagnant until Vega Aircraft Corporation bought the rights to the aircraft in October 1940 to develop into the Vega 35.