A Pattern for Joint Operations: World War II Close Air Support, North Africa

In addition, the Air Corps procured a number of light aircraft, basically modified from commercial sports planes, to give the ground forces close air support service once air superiority had been gained. Some of the models were highly maneuverable and performed well at slow speeds. The Stinson O-49(top) was a successful model used throughout the war. The Ryan O-51 (bottom) had high-lift wings that permitted operations in  and out of fields.