Designed for the Fédération Aéronautique Internationale European microlight class, the Storm 320E features a cantilever low-wing, a two-seats-in-side-by-side configuration enclosed cockpit under a forward-hinged bubble canopy, fixed tricycle landing gear with wheel pants, and a single engine in tractor configuration. A conventional landing gear version is designated the Storm 280.
The aircraft is made from aluminum sheet with some fibreglass parts. Its 8.61NaN1 span wing employs a NACA 4415 airfoil, mounts flaps and has a wing area of 11.065m2. The wing planform is rectangular, but the ailerons taper outboard, giving an overall tapered result. The cabin width is 112cm (44inches). The acceptable power range is 80to and the standard engine used is the 800NaN0 Rotax 912UL powerplant.[2]
The Storm 320E has a typical empty weight of 280kg (620lb) and a gross weight of 450kg (990lb), giving a useful load of 170kg (380lb). With full fuel of the payload for pilot, passenger and baggage is 126kg (278lb).
The standard day, sea level, no wind, take off with a 800NaN0 engine is 1220NaN0 and the landing roll is 1520NaN0.
The manufacturer estimated the construction time from the supplied kit as 400 hours or 250 hours from the quick-build kit.
By 1998 the company reported that 100 of the 280 and 320E model kits combined had been sold and 70 aircraft were completed and flying.
