While it was available the aircraft was supplied as a kit and in the form of plans for amateur construction.

[1] The Cyclone was later developed into the higher gross weight (3,500 lb (1,600 kg)) St-Just Super-Cyclone, which superseded it in production.

It features a strut-braced high-wing, a four-seat enclosed cabin accessed via doors, fixed conventional landing gear and a single engine in tractor configuration.

[1] The aircraft is made from sheet aluminum, with the kit airframe parts preformed with pilot holes to allow construction without the use of jigs.

[1] The manufacturer estimated the construction time from the supplied kit as 2000 hours.