The Gee Bee Model Y Senior Sportster was a sports aircraft built in the United States in the early 1930s by the Granville Brothers. Essentially an enlarged two-seat version of the single-seat Sportster it was a low-wing strut-and-wire-braced monoplane of conventional -- if short-coupled -- design with open cockpits and fixed tailskid undercarriage.
Made by Granville Brothers Aircraft.