01/31/2011. Remarks by Johan Visschedijk: "This primary trainer was designed by North American and one prototype, designated NA-35 was built, registered as NX14299 it was flown in late 1939. It lost out to the Ryan STA-1 in a competition for an USAAF trainer, and subsequently the rights for the NA-35, and the prototype were sold to Lockheed for production by its subsidiary Vega as the Model 35. Reportedly also four unfinished aircraft were bought.
The Vega prototype (most likely converted from NX14299) was first flown by Bud Martin in January 1941, registered as NX21760, and the Approved Type Certificate was obtained in February 1941. Vega registered four production aircraft: two models 35-67 (NX28351 c/n 101, NX28352 c/n 104), powered by an 125 hp Menasco Pirate D4 four-cylinder inverted in-line air-cooled engine, and two models 35-70 (NX28353 c/n 103, NX28354 c/n 104) powered by an 160 hp Super Pirate D4B. The last was constructed on May 7, 1941.
However, by that time Vega became involved in wartime production and the project was cancelled."