Pump-jet
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A pump-jet, hydrojet, or water jet is a marine system that produces a jet of water for propulsion. The mechanical arrangement may be a ducted propeller, a centrifugal pump, or a mixed flow pump which
A view of pump-jets operating
Two of four KaMeWa waterjets on the high-speed ferry Discovery
Ducted propeller
Videos
A ducted propeller, also known as a Kort nozzle, is a marine propeller shrouded with a non-rotating nozzle. It is used to improve the efficiency of the propeller and is especially used on heavily load
Pump-jet
…A pump-jet, hydrojet, or water jet is a marine system that produces a jet of water for propulsion. The mechanical arrangement may be a ducted propeller (axial-flow pump), a centrifugal pump, or a mixed flow pump which is a combination of both centrifugal and axial designs. The design also incorporates…
Kort nozzle
The towboat Dolphin I in a floating drydock on the Mississippi River, in Algiers, Louisiana