Diesel engines cannot work without oxygen, so how do diesel submarines operate when they're underwater? Their propulsion ...

A man cannot one day just decide to build a submarine, much less the first powered submarine, much less if that man is a writer. Yet that is just what Narcis Monturiol did. As a young firebrand of the ...

Japan now operates five cutting-edge Taigei-class submarines, in addition to its 12 Soryu-class and 6 Oyashio-class vessels.

Summary and Key Points: The U.S. Navy’s reliance on expensive, complex nuclear-powered submarines is under scrutiny as global rivals like China and Russia expand their naval capabilities. -Despite the ...

JS Raigei, the fourth Taigei-class diesel-electric submarine with the Japan Maritime Self-Defense Force. Credit: The Japan Maritime Self-Defense Force (JMSDF) A Japanese Defense Ministry panel called ...

South Korea launched the first of three new 3,600-ton submarines this week, marking another step in its efforts to strengthen its undersea fleet and counter threats from north of the border. The ROKS ...

Nuclear submarines carry out multiple types of missions, but no matter the mission, it's vital that they remain hidden in the ocean's depths.

Add Yahoo as a preferred source to see more of our stories on Google. Inside a diesel engine's cylinder, compressed air raises the temperature to ignite injected fuel, and the resulting force drives ...