Icebreakers. Sea trials of the Yakutia nuclear-powered icebreaker started in the Gulf of Finland. All key systems and mechanisms of the ship will be tested in the next two weeks. Yakutia is the fourth multi-purpose icebreaker of the Project 22220 series. Being built at the Baltic Shipyard on commission from Rosatom, the vessel is equipped with a nuclear propulsion system with two RITM-200 reactors. Each reactor has a thermal capacity of 175 MW and a service life of 40 years. The Russian nuclear icebreaker fleet consists of seven vessels: the most advanced multi-purpose nuclear icebreakers Arktika, Sibir, and Ural (Project 22220), nuclear-powered icebreakers Yamal, and 50 Let Pobedy (Project 10521), Taimyr, and Vaygach (Project 10580). Another two Project 22220 icebreakers, Chukotka and Leningrad, and a Project 10510 super icebreaker Rossiya are under construction.