Propulsion motors are enabling stealthy warships and submarines  propelled with an electric propulsion system

Navies of various countries have announced making their warships and submarines  propelled with an electric propulsion system. Instead of driving the ship’s propellers directly, diesel engines turn electric generators, which in turn power electric motors that drive the propellers. This arrangement enables diesels to be placed away from the shafts and propellers in sound-insulated compartments. Because…