Military Hardware: Tanks, Bombers, Submarines and More Meet the K-222: The Fastest Nuclear Submarine in History Capable of Exceeding 44 Knots (Made in Russia) Summary and Key Points: Built under Project 661 “Anchar,” the K-222 (Papa-class) remains the fastest submarine in history, hitting a record 44.7 knots submerged.... Isaac SeitzFebruary 12, 2026