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Inside Russia’s $400M stealth sub: specs, missile load, and how Ukraine blew it out of action

NV explains what is known about these submarines. The Varshavyanka project (NATO codification — Improved Kilo) was developed in the late 1970s and is considered highly successful by the Kremlin. That ...
Modern Engineering Marvels on MSN

Inside the enduring legacy of Russia’s “Black Hole” submarines

By introducing its first Kilo-class sub in 1980, the Soviet Union was entering a new phase of diesel-electric submarine ...