Russia's Delta III (Project 667BDR) class nuclear-powered submarine  Ryazan has returned to home. the renovation and modernization activities has completed for five years in Zvezda Shipyard, Bolshoy Kamen. Russian Defence Ministry confirmed that Ryazan nuclear submarine returned to its homeport in Vilyuchinsk, Kamchatka. Ryazan, one of the three Submarines of the Project 667BDR in use, is capable of diving to a depth of 400 meters. The 160 meter-long submarine has four 533 mm and two 400 mm torpedo tubes. Ryazan, with 130 crew, was equipped with 16 R-29R ballistic missiles launched from the submarine.