After World War II, a new class of Midget air racing was formed with Wittmans efforts.

After several successful races in Cleveland in 1948, a cleaner sister ship "Little Bonzo" was built.

The Wittman DFA is a mid-winged conventional geared aircraft built from a welded steel tube fuselage with aircraft fabric covering and wooden wing construction.

Steve Wittman and Bill Brennand alternated flying "Buster" and "Little Bonzo".

The Wittman DFA is on display at the EAA Airventure Museum in Oshkosh, Wisconsin.