Wittman Special 20 "Buster" Propeller

The aircraft that enjoyed what was perhaps the longest and most successful career in air racing history was Steve Wittman's Chief Oshkosh, known in the post-World War II era as Buster. From 1931 until its retirement in 1954, this midget racer set records and took numerous trophies in class races and free-for-alls. Highlighted in this image is the propeller of the Wittman Special 20.