Russia seizes Ukrainian Stenka-class patrol boat in Mariupol.

According to information published by Военный Осведомитель on April 19, 2022, a Ukrainian Stenka-class patrol boat Donbas was seized by the Russian forces in Mariupol.
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Ukrainian Stenka class patrol boat Donbas BG-32 (Picture source: Военный Осведомитель)

The Stenka class is the NATO reporting name for a class of patrol boats built for the Soviet Navy and Soviet Allies. The Soviet designation was Project 205P Tarantul (not to be confused with the Tarantul-class corvette). The boats are an anti-submarine (ASW) patrol boat version of the Osa-class missile boat.

Project 205P Stenka is a variant of the Project 205 Osa-class missile boat. The Stenka used the hull of the Osa class and had a slightly larger crew. The development office of the Almaz Shipyard in Leningrad used the standardized components of the Osa missile patrol boat, in order to develop an ASW boat.

The anti-ship missile launch containers were replaced by four torpedo tubes but the anti-ship missile-related structures and equipment were retained.

The living spaces in the Stenka were improved for long patrol endurance by raising the superstructure in order to create more usable space inside, compared to the Project 205 Osa missile boat. They also installed a more powerful air conditioner.

The Ukrainian Sea Guard ships had anti-ship missile launchers restored. The drive system is three diesel radial engines of the type M504 B2 with a total capacity of 15,000 hp (11,000 kW).