Project 23550 patrol ship

	Ivan Papanin in July 2024
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	August 2025 (current estimate)
Planned	4
Building	4
General characteristics
Type	Icebreaking patrol ship
Displacement	6,800 t (6,700 long tons; 7,500 short tons) standard; 8,500 t (8,400 long tons; 9,400 short 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 under construction for the Russian Navy. Two ships were ordered from Saint Petersburg-based Admiralty Shipyards in 2016. The ships are designed to patrol the Russian territorial waters and exclusive economic zone in the Arctic. The ships are also referred as "Arktika" type (Russian: шифр «Арктика», lit. 'codename 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 FSB Border Service of Russia by Vyborg Shipyard. The derivative design is also referred to as "Ermak" type (Russian: шифр «Ермак», lit. 'codename Yermak').

Class overview
Ivan Papanin in July 2024
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	August 2025 (current estimate)
Planned	4
Building	4
General characteristics
Type	Icebreaking patrol ship
Displacement	6,800 t (6,700 long tons; 7,500 short tons) standard 8,500 t (8,400 long tons; 9,400 short 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