The World's 9 Most Successful Conventional Submarines: #7 Will Surprise You

3. Swedish Gotland Class

The Gotland-class submarines exhibit undersea warfare Swedish engineering brilliance. By pioneering the use of Stirling AIP technology in real submarines, these boats transformed traditional submarine capability. Their sophisticated acoustic tiles and unusual hull form give outstanding stealth qualities. Famously proving their great efficiency, a Gotland-class submarine "sank" the USS Ronald Reagan aircraft carrier several times during US Navy drills. Regular updates and changes made possible by the modular design of the class guarantees ongoing relevance in contemporary naval operations.

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