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 ...

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

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 ...

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 ...

Explore how 1930s submarine technology is reinventing modern trucking. Learn how Achates Power and the legacy of Rudolph ...

Submarine propeller designs are highly classified due to their critical role in acoustic stealth and survivability. Cavitation noise from propellers is a major vulnerability, and advanced designs aim ...