Modern diesel submarines seem to break a basic rule of engines: they keep moving underwater even though diesel power needs oxygen. The trick is that these boats are really two propulsion systems in ...

Diesel-electric submarines, once dismissed as second-tier assets, are rapidly emerging as some of the most elusive platforms in modern naval warfare. Their ability to run in near silence for extended ...

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 ...