L-12 and L-212 with NEIAF Lockheed 12, L2-38 Lockheed 12, L2-38, photographed in 1985 at the Militaire Luchtvaart Museum at Soesterberg. "In 1938 Lockheed began with the development of a military version of the Lockheed 12, the Lockheed Model 212. The NEIAF was the first customer and ordered September 27, 1938 12 Lockheed 212-26 trainers.