Diesel engines need oxygen, so how do submarines use them underwater?

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

Nimitz-Class Nuclear Navy Aircraft Carrier: ‘Sunk’ By Small Diesel Submarine

Key Points and Summary - During a 1999 NATO exercise, the Dutch Walrus-class diesel-electric submarine HNLMS Walrus achieved a remarkable feat by successfully penetrating the anti-submarine defenses ...
Jalopnik

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 ...
SlashGear

Why Diesel-Electric Subs Pose A Threat To The US Navy

Diesel-electric submarines aren't just a poor man's nuclear alternative. They're a real problem for U.S. Navy surface and air ASW (anti-submarine warfare) crews. Their biggest advantage against AWS ...
Stars and Stripes

China’s retro submarine design speeds up challenge to US undersea dominance

China has rapidly built up its submarine fleet by making a technological U-turn to produce boats the U.S. hasn’t built in more than 65 years. More than half of the estimated 66 submarines operated by ...