In 1923 William Vanderford of Gladbrook IA. Built a single place, open cockpit, highwing monoplane, powered by a 2-cyl Harley-Davidson engine, which was not the only motorcycle part used. Open frame fuselage.

 

On the first run of the engine the airplane spun around, ran over a small tree, and almost made it to the neighbor's porch. Taxiing trials were made, but the airplane would not rise, so it ended up instead as a powered sled.