St-Just Cyclone
 The St-Just Cyclone also called the St-Just Cyclone 180 is a Canadian homebuilt aircraft that was designed and produced by St-Just Aviation of Mirabel Quebec. The company has since moved to Boucherville Quebec. While it was available the aircraft was supplied as a kit and in the form of plans for amateur construction.The Cyclone was later developed into the higher gross weight (3500 lb (1600 kg)) St-Just Super-Cyclone which superseded it in production.