This aircraft paper model is a Lun-class Ekranoplan (NATO reporting name Duck), a ground effect vehicle (GEV) designed by Rostislav Evgenievich Alexeyev and used by the Soviet and Russian navies, the papercraft is created by SouthPaw.
It flew using the lift generated by the ground effect of its large wings when close to the surface of the water—about 4 metres (13 ft) or less. Although they might look similar and have related technical characteristics, ekranoplans like the Lun are not aircraft, seaplanes, hovercraft, nor hydrofoils–ground effect is a separate technology altogether. The International Maritime Organization classifies these vehicles as maritime ships. The name Lun comes from the Russian for harrier. For further information please click here.
You can download the papercraft model here: Lun-class Ekranoplan GEV Free Aircraft Paper Model Download [Yadi.sk] [Box] [Gavitex]