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 ...

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 ...

L. David Marquet is a former US Navy Captain and author who served in the submarine force for nearly three decades. Marquet graduated from the US Naval Academy at the top of his class in 1981, during ...