National Security Journal on MSN

Aircraft carrier ‘down’: A Stirling AIP submarine from Sweden ‘sank’ a US Navy Nimitz-class aircraft carrier

Summary and Key Points: Sweden’s Gotland-class submarines are among the quietest conventional boats afloat, using Stirling air-independent propulsion to stay submerged for weeks. -That stealth helped ...
Morning Overview on MSN

Diesel subs run underwater without air: Here’s the wild trick

Modern diesel submarines seem to break a basic rule of engines: they keep moving underwater even though diesel power needs ...