Jet Drive Engines

A marine jet drive system is much different than an outboard or sterndrive or inboard which uses a propeller in the water. A jet boat and personal watercraft draws water from under the boat into a pump inside the boat and then expels it through a nozzle at the stern

Jet boats and personal watercraft are highly maneuverable and have very fast acceleration and because they have no exposed propeller below the surface can often run safely in shallower water.