The Gee Bee Sportsters were a family of sports aircraft built in the United States in the early 1930s by the Granville Brothers. They were low-wing strut- and wire-braced monoplanes of conventional if short-coupled design with open cockpits and fixed tailskid undercarriage. The prototype of the small series designated Model X was built to compete in the 1930 All-American Flying Derby sponsored by the Cirrus Engine Company.
Made by Granville Brothers Aircraft.