The Daphne SDI-A is an American two-seat light aircraft designed for amateur building first flown in 1961. The Daphne SDI-A is a braced high-wing monoplane powered by a Continental C85-C four-cylinder horizontally-opposed air-cooled engine providing a top speed of 240 kmh and an endurance of 3.75 hours flying time. Research Daphne SDI-A
 
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert