Project 23550 patrol ship

	Ivan Papanin at Admiralty Shipyards in Saint Petersburg in March 2021
Class overview
Builders	Admiralty Shipyards, St. Petersburg; Vyborg Shipyard, Vyborg;
Operators	Russian Navy; Russian Coast Guard;
Preceded by	Ivan Susanin class; Purga class;
Built	2017–present
In commission	Late 2024 (current estimate)
Planned	4
Building	4
General characteristics
Type	Icebreaking patrol ship
Displacement	6,800 tons (standard); 8,500 tons (full load);
Length	114 m (374 ft 0 in)
Beam	18 m (59 ft 1 in)
Draught	6 m (19 ft 8 in)
Ice class	RS Arc7
Installed power	4 × Kolomna 28-9DG diesel generators (4 × 3,500 kW)
Propulsion	Diesel-electric propulsion; two shafts (2 × 6,300 kW); Two bow thrusters;
Speed	18 knots (33 km/h; 21 mph)
Range	10,000 nmi (19,000 km; 12,000 mi) at 10 knots (19 km/h; 12 mph)
Complement	60 core crew + 50 extra mission crew
Armament	1 × 76.2 mm AK-176MA naval gun; 4 × 12.7 mm Kord machine guns; 2 × 30 mm AK-630M CIWS ("Ermak" Type); 8 × 3M-54 Kalibr missiles ("Arktika" Type);
Aviation facilities	Helipad and hangar for Ka-27 helicopter

Project 23550 is a class of armed icebreaking patrol ships with two vessels currently under construction for the Russian Navy at Admiralty Shipyards in Saint Petersburg, Russia ("Arktika" Type, Russian: шифр «Арктика», lit. 'codename Arctic'). Two ships have been ordered from the Admiralty Shipyards in 2016. The ships are designed to patrol the Russian territorial waters and exclusive economic zone in the Arctic.

During the launching ceremony of the lead ship, it was announced that two additional ships of slightly revised design would be built for the Border Service of the Federal Security Service of the Russian Federation by Vyborg Shipyard ("Ermak" Type, Russian: шифр «Ермак», lit. 'codename Yermak').

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