The World's 9 Most Successful Conventional Submarines: #7 Will Surprise You
5. Spanish S-80 Plus Class
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Spain's most ambitious submarine programme is represented by the S-80 Plus class. These boats offer long underwater endurance by including a novel AIP system based on bioethanol processing. For best situational awareness, its sophisticated combat management system combines several sensor inputs. For better manoeuvrability and less acoustic signature, the class has a distinctive X-stern arrangement. Notwithstanding early technological difficulties, the S-80 Plus has become a capable platform combining modern technologies with pragmatic operational needs.