At slow speeds, it runs only on an electric motor powered by the ship's auxiliary turbine.
But in some applications, it seems, they could give the venerable electric motor a run for its money.
The electric motor can suck electricity much faster than the old type lithium-ion cell can provide it.
Similarly, scientists instinctively recognize design when they see computer code or an electric motor.
The small combustion engine uses an electric generator and a super-powered electric motor to drive the propeller.
Hybrid cars, which run on a combination of a gasoline engine and an electric motor, are all the rage these days.
During normal travel, an electric motor powers the wheels.
Its quiet electric motor means it can get near to targets without their ever being aware of its presence.
Instead, there is a sensor on the gas pedal and a small electric motor on the throttle.
It was a prototype for the electric motor, using electricity to create motion.