Plan - 2270 Hall's Springfield Bulldog
Robert L Hall designed the full-scale Bulldog racing aircraft for the 1932 National Air Races. It finished sixth turning a speed of 215.5 mph. Post race speculation suggested its experimental Hamilton Standard propeller prevented the Wasp engine from delivering full power. Hall was so disappointed that he scrapped the airplane after the race.The plan for the Bulldog sports a wingspan of 51 inches. It was drawn in CAD by Rob Caso and is a very detailed plan. The model has a wing area of 424 sq in. and designed for a 650-watt electric power system. The PDF plan is two sheets.