In 1927 he rejoined the Loughead brothers and their newly founded (in 1926) Lockheed Aircraft Company, working as chief engineer on the Lockheed Vega, the civilian transport monoplane with a cantilever wing that produced unusually high performance for that period, and was widely used by such top pilots as Wiley Post, Amelia Earhart, and Hubert Wilkins. In 1929 he produced an all-metal monoplane with pilot and engine within the wing structure. Although this aircraft had booms to attach the tail group, it was in fact the first step toward the flying wing.[3]