With unique fighting tactics and heavy weapons, Vietnam's Osa-II missile boat creates a fearsome power against enemies at sea.
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| According to public information, the Osa II Project 205U missile boats were aided by the Soviet Union to Vietnam in the period 1979-1981 (8 ships) with improved missile launch tubes. |
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| The Osa Project 205 high-speed missile boat, designed in the late 1950s, was used by the Soviet Navy in combination with artillery and shore-based missiles, and aircraft carrying anti-ship missiles to combat seaborne landings. For that mission, the Osa only needed high speed, powerful missiles, compactness to hide and maneuver, and ease of operation to increase the number when needed to serve reasonable combat tactics. |
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| Because of its coastal operations, the Osa missile ship is supported by airborne, seaborne and shore-based target reconnaissance systems, so it does not need to be equipped with a strong reconnaissance system. The ability to sail on waves and have a long journey are also not necessary criteria for this type of nearshore amphibious assault ship. |
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| In terms of weapons, the ship is equipped with AK-230 guns. This is a Soviet naval artillery system, consisting of two 30 mm NN-30 guns using a water-cooled mechanism, guided by Drum Tilt or Muff Cobb radar with the main function of air defense. In addition, the AK-230 can also be used to destroy small surface targets such as speedboats or mines. |
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| Development of this automatic gun began in the 1950s and was completed in 1969, when it was accepted for use on the Osa fast attack missile boats and Shershen-class small torpedo boats. A total of 1,450 AK-230s were produced in the Soviet Union and about 300 in China under the designation Type 69. |
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| In addition to the AK-230 gun, the main weapon on the Osa II-class missile boat of the Vietnamese Navy is the P-15 missile. The P-15 Termit missile has a maximum range of 80 km, and is equipped with a high explosive warhead weighing up to 454 kg. Theoretically, if all 4 missiles are launched, the Osa II boat is capable of destroying a 16,000-ton cruiser. |
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| With its heavy weapons, the combat tactics of the Osa II missile boat are usually "hit and run". After launching the missile, the Osa II boat quickly accelerates to escape. |
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| To complete its mission according to its special combat tactics, the ship is equipped with a fairly powerful engine with 3 engines with a capacity of 12,000 horsepower and 3 propellers allowing it to reach a high speed of 40 knots. |
According to Baodatviet
