Head of the United Ship-Building Corporation Alexei Rakhmanov told that large amphibious assault lead ship Ivan Gren ( Project 11711) is scheduled for delivery to the Russian Navy by the end of spring,The Project 11711 is developed by the Nevskoye Design Bureau. It is laid down by the Yantar Shipyard in Kaliningrad in December 2004 and is launched in May 2012. Assault ship sea trials began in June 2016 and it started state trials in the Baltic Sea in November 2017. The warship can carry 13 main battle tanks or 36 armoured infantry fighting vehicles, or up to 300 marines and two Kamov Ka-29 transport/attack helicopters in its deck hangars. The ship has 3,500 nautical miles (6,500 km) at 16 knots (30 km/h)