Delta IV-class Nuclear Ballistic Missile Submarine

The Project 667BDRM Delfin-class submarines (NATO reporting name Delta IV) are a class of seven nuclear powered ballistic missile submarines in service in the Russian Navy. The submarines, based at the Sayda Guba Naval Base, operate in the Northern Fleet. The Severodvinsk Shipyard built these vessels between 1981 and 1992. The last vessel was K-407 Novomoskovsk.

The design of the Delta IV-class resembles that of the Delta III-class and constitutes a double-hulled configuration with missile silos housed in the inner hull.

The submarine has an operational diving depth of 1,050 feet (320.04 meters), with a maximum depth of 1,300 feet (396.24 meters). The propulsion system allows speeds of 24 knots (44.45 km/h) submerged using two VM-4 pressure water reactors rated at 180 MW. It features two turbines of type GT3A-365 rated at 27.5 MW. The propulsion system drives two shafts with fixed-pitch propellers.

On December 29th 2011, a shipyard fire broke out in the drydock where a Delta IV-class vessel named Yekaterinburg was being serviced. It was reported that the fire managed to spread to the submarine, that all weapons were disembarked from the submarine and the nuclear reactor was shut down beforehand.

Unit Run

 * RFK Verkhoturye (K-51)
 * RFK Ekaterinburg (K-84)
 * RFK Podmoskovye (K-64)
 * RFK Tula (K-114)
 * RFK Bryansk (K-117)
 * RFK Karelia (K-18)
 * RFK Novomoskovsk (K-407)