The Jora was designed by Oldrich Olsansky who also designed the similar Fantasy Air Allegro. It is built mostly from wood and laminates, covered by polyester fabric. The main exception is the central fuselage section, which has a riveted tube frame.
The Jora has separate wings with constant chord and square tips. These are each built up around a single spruce spar. Plywood covering and polyester-filled laminate ribs form a box spar forward to the leading edge, with spruce ribs and polyester covering aft. Since 2006 all composite parts have been replaced by carbon fibre castings. Each wing has a single, faired lift strut to the lower fuselage. Full-span combined ailerons and flaps (flaperons), constructed like the wing, are attached to an auxiliary spar. Separate ailerons and flaps are an option, in which case the wing profile (airfoil) is changed from the laminar flow UA-2 to SL-1. The wings can be detached for transport, though wing folding is an option.