This SA-3A Playboy was built over the course of just eleven months by Keith "Hoppy" Hopkinson of Goderich, Ontario in 1955. It was made from a kit designed by Ray Stits at Flabob Airport, California. Hopkinson made major modifications to the kit, using parts from a Piper J-3, a Cessna 170, a de Havilland Tiger Moth, a Cessna 140 and a Stinson 108. This Playboy was the first Canadian-built aircraft to be licensed under the Ultralight classification.