How a $100 Million 'Cheap' Submarine 'Sank' a $6 Billion Navy Aircraft Carrier

Summary: The Gotland-class submarine, developed for the Swedish Navy between 1992 and 1996, represents a significant technological leap in non-nuclear submarine capabilities, primarily due to its pioneering use of an air-independent propulsion (AIP) system.

-This innovation allows the Gotland-class subs to remain submerged for significantly longer periods—up to two weeks without surfacing—compared to traditional diesel-electric submarines which must surface within days for oxygen. Equipped...