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Buyan-class (Project 21630 / 21631)

History of Eye Reconstruction Classes (Item 21630 / 21631)

The modern Russian navy leads the world military powers in reliance on Corvette warships, with as many as 78 ships in service, divided into five different classes. As the smallest naval vessel available to the Navy today, the frigate has a relatively compact size and can be used for standalone and fleet-related operations in a "blue water" environment.

Her shallow draft also allows shore participation in support of amphibious operations.

The Buyan class is one of the corvettes used by the Russian Navy for three original ships (Type 21630) and six improved Buyan-M (Type 21631). Currently all assigned to the Caspian, Baltic, and Black Sea Fleet battle groups, there are fifteen programs, six of which are currently under construction (2018) and nine completed and in service (2018).

The ships will be built by the Almaz shipbuilding company and the Zelenodolsk factory Gorky.

The first ship in the

series, Astrakhan, was launched on 30 January 2004 and launched in October 2005. It went live on September 1, 2006 and remains in active service today (2018). However, there seems to be a gap in the commissioning dates as the next ship only entered service in December 2011 (Volgodonsk). Vyshniy Volochyok was last live on June 1, 2018, and three more are planned to go live by the end of the year.

Grad, Naro-Fominsk and Stravropol are expected to launch in 2020 and beyond.

Tour

These ships are conceptually 500 tons under standard load displacement. With an overall length of 203 feet, a beam of 31 feet, and a draft of up to 7 feet, it can operate close to shore. There is a crew of 30 to 36 people on board, providing food/fuel for up to 10 days at the station.

These ships are of course designed to deal with modern threats. Large uninterrupted panels line the sides of the hull. The hull lines are uninterrupted to maintain an "invisible" appearance. The turret above the forecastle has also undergone various treatments.

The bridge is integrated into the front of the hull structure, and the main mast is designed with a low profile and is fully enclosed, adding another stealth feature. There is a stepped entry aft leading to the lower aft deck area.

Drivers and performance

The vessels of the series are powered by a combined diesel and diesel unit (CODAD), in which 4 Zvezda M520 engines are paired with Kolomna marine diesel engines producing 14,584 hp on 2 axles. Pump jets are used for fine maneuvering of ships.

Top speed in ideal conditions is 28 knots and range is up to 1,700 miles.

Buyan-M (improved)

The upgraded Project 21631 (Buyan-M) has a longer overall length of 246 feet, a wider beam of 36 feet, and a slightly deeper draft of 8 feet. This increases the displacement to 950 tonnes under full load. Propulsion matching is the same, although the upgraded ship is slightly slower by two knots at 26 knots, but makes up for the difference with longer range, up to 2,600 miles.

Crew size increased from 36 to 52. The armament described below also differs between improved and original forms.

Vehicle Systems

The airborne systems of the class consist of the MR-352 Pozitiv-M1. 2 phased array radar system (export version downgraded to Pozitiv-ME1.2) and fire control 5P-10-03 Laska (export version also downgraded to 5P-10-03E).

The sonar is Anapa-M (downgraded to Anapa-ME for export) and the navigation aids are MR-231 Pal series. 2 x PK-10 launchers manage decoy supply.

Armed

Mounted armament is carried by a 100mm A-190 deck gun with a turret located above the forecastle. It is equipped with a DP-65 "anti-vandal" grenade launcher and 2 x 14.5mm KPV machine guns.

Project 21630 ships carry 1 x 40 A-215 Grad-M Retractable Multiple Rocket System (MLRS), 1 x 4 3M47 Gibka Surface-to-Air Missile (SAM) launchers, and 2 x 30mm AK-630 Close-In Weapon System (CIWS) ). Type 21630 ships are equipped with 2 x 4 UKSK Vertical Launch Systems (VLS) supporting Kalibr-NK or P-800 Onix missile series, 2 x 4 Komar SAM launchers, 2 x AK-630-M2 CIW and up to 3 x 7.62mm Medium missile PKM machine gun.

Running

Some of the ships have recently had Russian involvement in Syria. In October 2015, three were used to fire cruise missiles at inland rebel targets and through Iranian and Iraqi airspace. The accuracy of the attack was questioned by the West and praised by the East.

In addition, there are regular deployments in the region, and the class has been demonstrated in various joint exercises with the Russian Navy (most recently in the summer of 2018).