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Diesel engines need air, submarines run underwater, so how do diesel submarines work?

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 ...
AOL

Diesel Engines Need Oxygen, So How Do Submarines Use Them Underwater?

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 ...
Smithsonian Magazine

The Writer Who Built the World’s First Engine-Powered Submarine

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 ...
The Diplomat

Panel Urges Japan to Use ‘Next-Generation Propulsion Systems’ in New Submarines

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 ...
The National Interest

Here’s How Anti-Submarine Planes Actually Work

Submarines are hard to find. They exploit ocean depth, acoustic complexity, and thermal layers to maintain low observability and high survivability. Diesel-electric submarines are especially quiet at ...