The ultralight version is a 3/4 scale replica of the Fieseler Fi 156 Storch of the Second World War and is supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.

[6] Production then moved to Serbia where a Fédération Aéronautique Internationale microlight category model was developed.

[1][3][7] Like the original Fi 156, the Slepcev Storch features a strut-braced high-wing, a two-seats-in-tandem enclosed cockpit, with extensive glazing, fixed conventional landing gear and a single engine in tractor configuration.

It is made from welded steel tubing with its flying surfaces fashioned from sheet aluminium and covered in doped aircraft fabric.

[1][3] The designer has a keen interest in Second World War history and wanted to use an example of his Storch design to re-enact the 12 September 1943 rescue of Benito Mussolini by Otto Skorzeny and his SS commandos from his imprisonment by Italian Carabinieri guards on the Gran Sasso mountain.