The Zubr-class is a class of air-cushioned landing craft of Soviet design. This class of military hovercraft is currently, as of 2012, the world's largest hovercraft. There are currently nine ships in active service in the world. The Zubr is used by the Russian, Ukrainian, and Greek navies. The transfer of the Kefalonia (L- 180), the first of two Zubr hovercraft purchased by Greece, to the Hellenic Navy marked the first time that a Russian-made ship was purchased by the navy of a NATO member.It is designed to sealift landing assault units (such as marines or tanks) from equipped/non-equipped vessels to non-equipped shore, as well as transport and plant mines.