9/6/2023 0 Comments Nuclear submarine drawing![]() ![]() ![]() The PPK-class "is slightly longer in length - the sub’s submerged displacement is around 4,000 tons - and feature improved engines, an improved combat system, as well as new noise reduction technology it can fire both torpedoes and cruise missiles, launched from one of six 533-millimeter torpedo tubes." In June 2022 an unconfirmed report from within Russia's defence industry suggested that a further tranche of six additional Project 636.3 vessels might be ordered to start construction in around 2024. By November 2019, six units had been built for the Black Sea Fleet and further boats were planned for the Pacific and Baltic Fleets. The first-in-class was named Petropavlovsk-Kamchatsky (PPK) and was launched by the head of Admiralty Shipyard Alexander Buzakov on 28 March 2019, or some thirty months after commission. The Russian Navy also moved forward in the late 2010s, with the construction of Project 636.3, an improved version of the Kilo class. Series production was reported to be underway in the latter 2010s. On 27 July 2012, the Russian Navy commander-in-chief announced that construction of the Lada-class submarines would resume, having undergone design changes. However, by November 2011 it was apparent that the Lada-class would be delayed because Sankt Peterburg (B-585), the lead boat of the class, had shown major deficiencies. The Kilo class was planned to have been succeeded by the Lada class. These tiles also help attenuate sounds that are emitted from the submarine, thus reducing the range at which the submarine may be detected by passive sonar. The improved sonar systems have reduced the number of operators needed by sharing the same console via automation.Īnechoic tiles are fitted on casings and fins to absorb the sound waves of active sonar, which results in a reduction and distortion of the return signal. MGK 400E can detect submarines with 0.05 Pa/Hz noisiness in 16 km and surface vessels with 10 Pa/Hz noisiness in 100 km. Newer Project 636 boats are equipped with improved MGK-400EM, with MG-519 Arfa also upgraded to MG-519EM. ![]() Original Project 877 boats are equipped with Rubikon MGK-400 sonar system (with NATO reporting name Shark Gill), which includes a mine detection and avoidance sonar MG-519 Arfa (with NATO reporting name Mouse Roar). The Project 877 attack submarines were mainly intended for anti-shipping and anti-submarine operations in relatively shallow waters. The class was updated again by the Rubin Design Bureau in the mid-2010s and called the Project 636.3. Production was switched to the more advanced Project 636 Varshavyanka ( Russian: Варшавянка, meaning " Varsovian (inhabitant of Warsaw feminine)") variant in the mid-1990s, also known as Improved Kilo class in the West. The initial version of Kilo submarines entered operational service in 1980 and were built until the mid-1990s. The Kilo class, Soviet designation Project 877 Paltus ( Russian: Па́лтус, meaning " halibut"), NATO reporting name Kilo, is a class of diesel-electric attack submarines originally designed in the 1970s and built in the Soviet Union for the Soviet Navy. Russian Project 877 in the English Channel in 2018 A Russian Kilo-class diesel-powered attack submarine underway on the surface 8 9K34 Strela-3 (SA-N-8 Gremlin) or 8 9K310 Igla-1 (SA-N-10 Gimlet) surface-to-air missiles (export submarines may not be equipped with air defense weapons).4 Kalibr / Club land-attack cruise missile, anti-ship missile and anti-submarine missile (some versions).1 × fixed-pitch 6 or 7 bladed propeller (6BL project 877) (7BL project 636).Submerged: 3,075 tons full load (Kilo - Project 877 variant) 3,100 tons full load (Improved Kilo - Project 636.3 - variant ).Russian Black Sea Fleet's B-265 Krasnodar Improved Kilo-class submarine in 2015. ![]()
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