Japan’s Taigei-class submarine—the “Big Whale”—is the first submarine class designed entirely around lithium-ion batteries, ...

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 ...

Inside a diesel engine's cylinder, compressed air raises the temperature to ignite injected fuel, and the resulting force drives pistons to power the vehicle's main gears. Chief to this combustion ...

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 ...

Summary and Key Points: China’s People’s Liberation Army Navy (PLAN) has reportedly launched its most advanced diesel-electric submarine, sparking interest and concern among naval analysts. Though ...

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 ...

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 ...