The main nuclear-powered icebreaker of project 22220 Arktika completed the next stage of sea trials and returned to the Baltic Shipyard. It is reported by Shipbuilding.info.
The icebreaker went on sea trials in the Baltic Sea on June 23. During the tests, it was planned to check the operation of mechanisms and equipment, test the rowing electrical installation and maneuverability, rescue equipment, navigation systems. It was noted that the ship went to the test with a damaged right-hand propeller motor as a result of mooring tests in December 2019.
Earlier it was reported that after the completion of the stage of sea trials and return to the Baltic Shipyard, the icebreaker will be handed over to the customer with an emergency electric motor with power limitations "under certain guarantees and obligations." It is planned to replace the emergency electric motor at the icebreaker during the docking in Kronstadt in August 2021.
The Arctic nuclear-powered icebreaker is the lead ship of the 22220 project in a series of three vessels being built at the Baltic Shipyard in St. Petersburg under a contract with Rosatom. The series also included the Siberia and Ural icebreakers, which were launched and completed afloat. The icebreaker delivery dates are 2021 and 2022 of the year, respectively.
A feature of the 22220 project icebreakers is the use of variable draft using ballast tanks. Double-deck ships can operate both in deep water and in shallow water in river beds, overcoming ice up to 3-meters thick without losing speed. According to project data, new icebreakers will become the largest and most powerful in the world.
The main power plant of icebreakers includes two "Rhythm-200" reactors with thermal capacity of 175 MW each. Its main advantage over other similar installations lies in its compactness and economy, as well as energy-efficient integrated layout.