In a 2005 U.S. Navy war game, a Swedish Stirling AIP-powered Gotland-class submarine slipped past the screen and “sank” a U.S ...

Modern diesel submarines seem to break a basic rule of engines: they keep moving underwater even though diesel power needs oxygen. The trick is that these boats are really two propulsion systems in ...

While diesel engines don't need spark plugs, they do need air ventilation for proper combustion. This is a problem for vessels traveling underwater, such as submarines. Yet diesel submarines exist and ...

A triad of SSGs, SSKs, and SSNs would comprise a forbidding implement of access denial for the US Navy in the Indo-Pacific. Summary and Key Points: The U.S. Navy’s reliance on expensive, complex ...

With the U.S. Navy fielding 11 active carriers, the fleet represents a fearsome deterrent and weapon that can be deployed globally. However, they do make big, lucrative targets. For opposing forces, ...

Nuclear-powered submarines (SSNs) come with many advantages. They can stay submerged for long periods of time – essentially for years, if they can carry enough provisions for the crew – whereas most ...

Submarines are quite possibly some of the scariest vessels any navy could operate. No, they're not as large as an aircraft carrier or as armed to the teeth as a destroyer, but their ability to ...