 Combining his sales and piloting skills, Parks flew a Standard J with the Gravois Motor logo painted on the fuselage and wings.A friend of Charles Lindbergh, Parks founded the Parks Air College in 1927 and quickly established higher standards for the amount and quality of training that student pilots were required to complete to earn their commercial pilot’s certification.In the late 1930s, with war brewing again in Europe and no air force in existence, Parks also convinced the Air Corps that the training program at his college could adequately prepare military pilots for combat missions.