The Sidewinder was the 1969 Outstanding Design at the 17th Sport Aviation Convention at Rockford, Illinois. It was designed by Jerry Smyth, flown and performed all the basic aerobatic manoeuvres. It is stressed to 9 g's "ultimate". It is rather unique in an all metal airplane. The Sidewinder has a steel tube fuselage with aluminium skin and all aluminium wings. It is a side-by-side two seater that was designed to use engines from 90 - 180 Hp. that weigh up to 310 lbs. The Sidewinder uses a sliding canopy, tapered steel rod landing gear, stabilators and fibreglass cowling. There are some questions as to the handling of this aircraft.