Storm Aircraft was originally called SG Aviation srl. When it was available the aircraft was supplied as a kit for amateur construction. The original model Storm 300 features a cantilever low-wing, a two-seats-in-side-by-side configuration enclosed cockpit under a bubble canopy, fixed conventional landing gear or optionally tricycle landing gear, both with wheel pants, and a single engine in tractor configuration. The manufacturer estimated the construction time from the supplied kit as 500 hours or 350 hours from the quick-build kit. The Storm 300 was later developed into the Storm Century and then the retractable gear Storm RG.
