Stearman Hangar, now known as Building #9, is located at what was the north end of the old Municipal Airport on the grounds of McConnell Air Force Base. Stearman Aircraft Company (Boeing) built the structure in 1929, at a cost of $42,000. The company used the one-story building for storage and display of new airplanes before they were delivered to the purchaser.
Stearman hangar is now owned by the Kansas Air National Guard. The building has a functional-utilitarian design with some Spanish Mission architectural elements. The north facade has eight cantilevered steel and glass sliding doors and is said to be the first aircraft hanger to utilize them. The building has concrete footings, foundation walls and floors. The interior walls are 13 inches thick and made of brick.