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Reference.org
Soviet submarine K-27
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<p><i>K-27</i> was the only <a href="/facts/Nuclear_submarine/EwB3jEwd">nuclear submarine</a> of the <a href="/facts/Soviet_Navy/t2buEMEK">Soviet Navy's</a> Project 645. It was constructed by placing a pair of experimental <a href="/facts/VT-1_reactor/L8zvMoyJ">VT-1</a> <a href="/facts/Nuclear_reactor/8xqjIbge">nuclear reactors</a> that used a liquid-metal coolant (<a href="/facts/Lead-bismuth_eutectic/IdUVo5nq">lead-bismuth eutectic</a>) into the modified hull of a Project 627A (<a href="/facts/November-class_submarine/tWkddJt9">November-class</a>) vessel. A unique <a href="/facts/NATO_reporting_name/GL1ptqxy">NATO reporting name</a> was not assigned. </p>