Large submarine chasers since 1956 - Small anti-submarine ships
Ship Displacement
289 (I series) / 302 (II series) ton standard, 325 (I series) / 337,7 tons full load
Ship Length
52.24 m (171.4 ft)
Ship Beam
6.55 m (21.5 ft)
Ship Draft
2.2 m (7.2 ft)
Ship Propulsion
3 diesel engines @ 3,600 hp "General Motors" (I series) / 3,300 hp "9D" (II series) with 3 shafts
Ship Speed
20.5 (I series) / 18.7 (II series) knots
Ship Range
2600-3500 nm at 12 knots
Ship Complement
50-54
Ship Sensors
*Radar: 1 "Giuys-1" or "Zarya" (I series) / "Lin`" or/and "Neptun" (II series) search radar
*Sonar: 1 "Tamir-9" or "Tamir-10" or "Tamir-11" hull mounted high frequency active sonar
Ship Armament
*1 x 90K dual purposes 85 mm gun
*2 x 70К 37mm guns (2x1)
**6 x "Colt-Browning" or 2M-1 12.7 mm heavy machine guns (2x3) (I series)
**6 x 2M-7 14.5 mm (2x3) (last ships of II series)
*2 depth charge rails (30 large & 30 small depth charges)
*2 x BMB-1 or BMB-2 ASW mortars
*2 x RBU (II series) or 2 x RBU-1200 (last ships of II series) rocket launchers
*16 Type 1908/39 mines (overload)
Project 122bis (NATO codename Kronshtadt class) submarine chasers were a Soviet design which were exported throughout the communist bloc in the 1950s. The first ship, BO-270, was built at Zelenodolsk in 1945-1947 and a total of 227 were built for Soviet Navy (175) and border guard until 1955. Besides, twenty units Project 357 (Libau class) despatch vessels were built on similar project, but without weapon.
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Kronshtadt class submarine chaser || Ship || Recreation