The Koni class is the
NATO reporting name
NATO reporting names are code names for military equipment from Russia, China, and historically, the Eastern Bloc (Soviet Union and other nations of the Warsaw Pact). They provide unambiguous and easily understood English words in a uniform manne ...
for an
anti-submarine warfare frigate
A frigate () is a type of warship. In different eras, the roles and capabilities of ships classified as frigates have varied somewhat.
The name frigate in the 17th to early 18th centuries was given to any full-rigged ship built for speed and ...
built by the
Soviet Union. They were known in the Soviet Union as Project 1159. 14 were built in
Zelenodolsk shipyard between 1975 and 1988. They were originally intended to replace the older s, but were instead chosen as a design for export to various friendly navies. The Koni I sub class were designed for European waters and the Koni II were made for warmer waters.
One ship was retained by the Soviets in the
Black Sea for training foreign crews. Only a few of these vessels remain in service today.
The Romanian
Tetal-class corvettes were similar.
Design
Armament
The armament consisted of two
AK-726
The AK-726 (abbr. of ) is a twin naval gun, which was developed in the Soviet Union and is still in service in various navies.
History
In 1954 the Soviet Union began development of a naval gun which could be used against both air and sea targets. ...
twin gun mountings and two
AK-230
The AK-230 is a Soviet fully automatic naval twin 30 mm gun. Its primary function is anti-aircraft. It is mounted in an enclosed automatic turret and directed by radar. AK-230 is widely used, mounted on big warships as well as small craft. ...
twin
anti-aircraft
Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, ...
guns, 4
P-15M Termit anti-ship missile launchers were fitted in some ships,
depth charge
A depth charge is an anti-submarine warfare (ASW) weapon. It is intended to destroy a submarine by being dropped into the water nearby and detonating, subjecting the target to a powerful and destructive Shock factor, hydraulic shock. Most depth ...
and
naval mine racks were fitted at the stern. The Libyan vessels had a redesigned layout with the P-15M missiles forward of the
bridge. The ships had contemporary Soviet radar and sonar.
Propulsion
The ships had 3-shaft
CODAG machinery suite, identical to that used in the s (Project 1124). The middle shaft had an
gas turbine while the outer two shafts had
diesel engines with in total for economical cruising.
Ships in class
MV ''Captain Keith Tibbetts''
In September 1996 a former
Cuban Navy Koni II-class frigate designated ''356'' was
scuttled in shallow water in
Cayman Brac. This ship was built in 1984 as one of three Koni II-class frigates sold to
Cuba to support its
Cold War
The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because the ...
fleet. In 1996 the ship was purchased from Cuba by the
Cayman Islands
The Cayman Islands () is a self-governing British Overseas Territory—the largest by population in the western Caribbean Sea. The territory comprises the three islands of Grand Cayman, Cayman Brac and Little Cayman, which are located to the ...
government to be scuttled in Cayman Brac as a dive attraction. The remaining two Cuban Koni II class were expended as targets. Frigate ''356'' was sunk upright, and initially her deck rested below the surface. A serious storm in 2004 broke the ship in two, and her bow now lists at a 45 degree angle, while her midships have become a debris field. Before being sunk the ship was renamed ''Captain Keith Tibbetts'' after a local politician and diver. It is one of only a few sunken Soviet Naval vessels in the
Western Hemisphere, and the only one of two that is easily dived including her sister ship ''SKR-451''.
''Patrol Boat 383'', ''P.B.''
On July 16, 1998 the former Cuban Navy Koni II-class frigate designated ''353'' was scuttled in shallow water near the Cuban resort town of
Varadero
Varadero (), also referred to as ''Playa Azul'' (Blue Beach), is a resort town in the province of Matanzas Province, Matanzas, Cuba, and one of the largest resort areas in the Caribbean. Varadero Beach was rated one of the world's best beaches in ...
in the Parque Submarino Cayo Piedra del Norte as an attraction for divers. It is rumored that Fidel Castro promoted the project, being an avid diver himself. The frigate sank upright, and sits on the sand bottom in of water. For an unknown reason her hull number was changed from ''353'' to ''383'' prior to the scuttling.
The dive operators in the Varadero area refer to the dive site as ''Patrol Boat 383'' or simply ''P.B'' even though it is a frigate.
Original operators

* Soviet Union - 1 (to
Bulgaria in 1990), ''Delfin'' was originally used for training foreign crews in the Black Sea, before being sold to the
Bulgarian Navy, currently in service as ''Smeli'' (Bulgarian: Смели" ("Brave")).
*
Algeria - 3, in service, being upgraded with new electronics, ASW torpedo tubes and 8 x
Kh-35 Uran/SS-N-25 Switchblade anti-ship missiles
*
Cuba - 3, 356 (No name) ex ''SKR-471'' sunk as a
reef, 353 (later 383) (''Monkada'' or ''Moncada'') ex ''SKR-451'' sunk as a
reef and 350 (''Mariel'') ex ''SKR-28'' status unknown.
*
East Germany /
Germany - 3, two (''Rostock'' and ''Halle'') taken over by unified
German Navy and paid off August 1991, one (''Berlin - Hauptstadt der DDR'') immediately put up for disposal in 1991.
[Conway 1995, p. 135]
*
Libya - 1 (formerly 2), 4 x 406mm torpedo tubes, status unknown, damaged by bombing May 19/20 and on August 9, 2011. (''Al Ghardabia''). The remaining ship, ''Al Hani'' captured by
National Transitional Council in
Benghazi
Benghazi () , ; it, Bengasi; tr, Bingazi; ber, Bernîk, script=Latn; also: ''Bengasi'', ''Benghasi'', ''Banghāzī'', ''Binghāzī'', ''Bengazi''; grc, Βερενίκη (''Berenice'') and ''Hesperides''., group=note (''lit. Son of he Ghazi ...
, and has become the flagship of the reorganized Libyan Navy.
*
Yugoslavia - acquired two ships,
''Split'' (VPBR-31) and ''Koper'' (VPBR-32), during the 1980s.
See also
*
List of ships of the Soviet Navy
This is a list of ships and classes of the Soviet Navy.
Corvettes
In the Soviet Navy these were classified as small anti-submarine ships (MPK) or small missile ships (MRK).
* (projects 122A, 122bis)
* (project 204)
* (project 1124 ''Al'bat ...
*
List of ships of Russia by project number
References
*
Marinekameradschaft KSSPALUBAinfo Forum*
Militaryfactory.com Koni Class frigate
{{Recreational dive sites, wresit
Frigate classes
Ships of the Soviet Navy
Frigates of the Soviet Union