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 ...

Somewhere beneath the surface of the Pacific Ocean, as of early 2026, a U.S. Navy Virginia-class submarine is likely on ...

Even as Australia eyes the heady prospect of operating nuclear-powered attack submarines in the future, it is facing the challenge of keeping six ageing Collins-class diesel-electric submarines in ...