Naval Systems

Project 205P / Stenka-class patrol boat

Also known as
  • Project 205P
  • Project 205-P
  • Stenka class
  • Stenka-class patrol boat
  • Project 205P Tarantul
  • Tarantul patrol boat
  • AK-234 class patrol boat

Project 205P is a Soviet coast guard and anti-submarine patrol-boat class known to NATO as the Stenka class. The design reused the Project 205 Osa hull but traded the missile-boat mission for 400 mm torpedo tubes, depth-charge equipment, sonar, and twin 30 mm AK-230 gun mounts. Its Russia-Ukraine War record is best documented as Black Sea patrol and loss/capture evidence: Ukrainian Donbas was reported seized at Mariupol in April 2022, while a Russian Project 205P/Tarantul boat was reported sunk at Sevastopol after late-December 2023 Ukrainian strike activity.

Project 205P / Stenka-class patrol boat, Coast guard anti-submarine patrol boat, Naval Systems
Image source: Wikimedia Commons Anapa 205P Photo

Role in Conflicts

Profile / Specs

Profile

Origin
Soviet Union
Type
Coast guard anti-submarine patrol boat
Service note
Cold War design with post-Soviet service into the 2020s
Designer
Almaz development office, Leningrad
Designed
Mid-1960s
Produced
1967-1989
Number built
137 units including Project 205P and export Project 02059 boats

Specifications

Displacement
211 tons standard; 245 tons full load
Dimensions
39.98 m length; 7.91 m beam; 1.96 m draft
Propulsion
Three M-503G 4,000 hp diesels or M-504-series 5,000 hp diesels driving three fixed-pitch propellers
Speed
34 knots, or 36 knots on boats with M-504B diesels
Range
1,910 nmi at 11.4 knots; 800 nmi at 20 knots; 490 nmi at 35.6 knots
Endurance
10 days
Crew
31 including 5 officers and 4 warrant officers on Project 205P boats
Guns
Two twin 30 mm AK-230 mounts with MR-104 Rys fire control
Anti-submarine weapons
Four 400 mm torpedo tubes for SET-40 or SET-72 torpedoes and twelve BB-1 or BPS depth charges on standard Project 205P boats; export Project 02059 omitted the torpedo/sonar ASW fit
Sensors
4Ts-30-125 or MR-220 radar, Xenon radar, MG-329 Sheksna sonar, MG-11 sonar, and selected auxiliary systems such as MG-7 Braslet or MI-110K on specific hulls
Design lineage
Project 205 Osa missile-boat hull adapted as a border-patrol and ASW boat
Production yards
Project 205P: 105 boats at Primorsky Shipyard / Almaz in Leningrad and 25 at Vladivostok Shipyard; export Project 02059: 7 boats at Almaz
Patrol-Boat Fit

Project 205P is useful to read as a border-patrol and ASW adaptation of a fast missile-boat hull. The public sources agree on the Osa-family hull lineage, but the equipment fit moved the boat toward coastal patrol, harbor approaches, and short-range anti-submarine work rather than missile attack.

Hull lineage

The class reused the Project 205 Osa hull and standardized components, with a raised superstructure and improved internal space for longer patrols.

Sources: RussianShips Project 205P; Army Recognition Mariupol Seizure.

ASW conversion

Missile launch containers gave way to four 400 mm torpedo tubes, depth-charge gear, and sonar equipment for coastal anti-submarine patrol tasks.

Sources: RussianShips Project 205P; Army Recognition Mariupol Seizure.

Gun armament

Two twin AK-230 30 mm mounts with MR-104 fire control remained the class's visible close-range surface and air-defense armament.

Source: Army Recognition Sevastopol Sinking.

Service boundary

The 2022-2024 Russia-Ukraine War evidence found in open sources documents seizure, loss, patrol context, and ship identity rather than confirmed torpedo or depth-charge combat employment.

Sources: Army Recognition Mariupol Seizure; Defense Express Sevastopol Sinking; Naval Losses During Russian Invasion.

Variants

Project 205P was the coast guard patrol and anti-submarine derivative of the Project 205 Osa missile-boat hull; Project 02059 was the export gunboat version.

VariantConfigurationDesignation notes
Project 205PCoast guard patrol and anti-submarine boat

Main production version with 30 mm AK-230 guns, sonar, 400 mm torpedo tubes, and depth charges.

Sources: RussianShips Project 205P

Project 02059Export gunboat derivative

Export configuration listed separately by RussianShips.info and reported without the Project 205P torpedo and sonar fit.

Sources: RussianShips Project 205P

Project 205PEExperimental gun configuration

A one-off test configuration is reported with a 57 mm AK-725 gun on the bow.

Sources: Stenka Wikipedia

Timeline

Project 205P / Stenka-class patrol boat Key Events

  1. Project 205P production and service begin

    RussianShips.info lists Project 205P production beginning in 1967, while Army Recognition describes the class as entering service that year.

    Sources: RussianShips Project 205P, Army Recognition Sevastopol Sinking

  2. Project 205P production run ends

    The RussianShips.info production table lists the Project 205P build run through 1989.

    Sources: RussianShips Project 205P

  3. Ukrainian Stenka-class Donbas reported seized

    Army Recognition reported that Russian forces seized the Ukrainian Stenka-class patrol boat Donbas at Mariupol.

    Sources: Army Recognition Mariupol Seizure

  4. Project 205P loss reported at Sevastopol

    Defense Express and Army Recognition reported a Project 205P/Tarantul patrol boat submerged at Hrafska Bay, Sevastopol, and Army Recognition linked the sinking window to satellite imagery between December 28 and 31, 2023.

    Sources: Defense Express Sevastopol Sinking, Defense Express Satellite Confirmation, ISW January 18 2024 Assessment, Army Recognition Sevastopol Sinking, Naval Losses During Russian Invasion

Media

Project 205P / Stenka-class patrol boat Images

Project 205P / Stenka-class patrol boat, Coast guard anti-submarine patrol boat, Naval Systems - view 1
Source: Wikimedia Commons Sea Breeze 2010 Photo
Project 205P / Stenka-class patrol boat, Coast guard anti-submarine patrol boat, Naval Systems - view 2
Source: Wikimedia Commons Odessa Stenka Photo
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Sources

RussianShips Project 205PPublisher: RussianShips.info | Note: Supports Project 205P identity, NATO Stenka name, production counts and yards, dimensions, propulsion, range, endurance, armament, electronics, crew, variants, and operator context. | Accessed: 2026-07-13Stenka WikipediaPublisher: Wikipedia | Note: Used only for baseline terminology and leads, including the NATO reporting name, Project 205P designation, Project 205 Osa hull relationship, and reported 205PE variant. | Accessed: 2026-07-13Army Recognition Mariupol SeizurePublisher: Army Recognition | Note: Supports 2014 Russia-Ukraine War direct-use and captured-equipment context: a Ukrainian Stenka-class patrol boat Donbas was seized by Russian forces in Mariupol, and supports Osa-hull design lineage and patrol-fit context. | Accessed: 2026-07-13Defense Express Sevastopol SinkingPublisher: Defense Express | Note: Supports 2014 Russia-Ukraine War direct-use and loss context: a Russian Project 205P Tarantul/Stenka patrol vessel was reported sunk at Sevastopol after Ukrainian sea-drone strike activity. | Accessed: 2026-07-13Defense Express Satellite ConfirmationPublisher: Defense Express | Note: Supports 2014 Russia-Ukraine War direct-use and loss context by reporting satellite-image confirmation of a Project 205P Tarantul ship sunk in Sevastopol, with the likely sinking window on December 29-30, 2023. | Accessed: 2026-07-13ISW January 18 2024 AssessmentPublisher: Institute for the Study of War | Note: Supports 2014 Russia-Ukraine War direct-use and loss context by identifying the Sevastopol loss as a Russian Project 205P Tarantul patrol boat sunk by Ukrainian strikes against occupied Crimea in late December 2023. | Accessed: 2026-07-13Army Recognition Sevastopol SinkingPublisher: Army Recognition | Note: Supports 2014 Russia-Ukraine War direct-use and loss context for the Russian Project 205P boat at Sevastopol, plus cross-checks principal dimensions, speed, range, crew, electronics, and armament. | Accessed: 2026-07-13Naval Losses During Russian InvasionPublisher: devrimyaylali.com | Note: Supports 2014 Russia-Ukraine War direct-use and loss/capture context by listing Donbas as a Ukrainian Tarantul-class coast guard vessel sunk in Mariupol, and a Tarantul-class coast guard vessel captured from Ukraine in 2014 and hit by Ukrainian naval suicide drones in Sevastopol. | Accessed: 2026-07-13Wikimedia Commons Anapa 205P PhotoPublisher: Wikimedia Commons | Note: Supports image provenance and reuse terms for a focused Project 205-P Tarantul patrol boat photograph taken at Anapa in 2007 under CC BY-SA 3.0. | Accessed: 2026-07-13Wikimedia Commons Sea Breeze 2010 PhotoPublisher: Wikimedia Commons | Note: Supports gallery image provenance and public-domain reuse terms for a U.S. Navy Sea Breeze 2010 photograph annotated as including a Ukrainian Project 205-P Tarantul ship. | Accessed: 2026-07-13Wikimedia Commons Odessa Stenka PhotoPublisher: Wikimedia Commons | Note: Supports gallery image provenance and reuse terms for a 2010 photograph of Ukrainian Sea Guard Stenka-class boats BG-61, BG-62, and BG-63 at Odessa under CC BY-SA 3.0. | Accessed: 2026-07-13