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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 ( axial-flow pump ), a centrifugal pump , or a mixed flow pump which is a combination of both centrifugal and axial designs.
A pump-jet, hydrojet, water jet, or jet drive uses a ducted propeller (axial-flow pump), centrifugal pump, or mixed flow pump to create a jet of water for propulsion. These incorporate an intake for source water and a nozzle to direct its flow out, generating momentum, and in most cases, employing thrust vectoring to steer the craft.
This is a list of vehicles and aircraft used by the United States Marine Corps, [1] [2] for combat, support, and motor ... FJ Fury Jet Fighter; F9F Panther Fighter ...
A magnetohydrodynamic drive or MHD accelerator is a method for propelling vehicles using only electric and magnetic fields with no moving parts, accelerating an electrically conductive propellant (liquid or gas) with magnetohydrodynamics. The fluid is directed to the rear and as a reaction, the vehicle accelerates forward. [1] [2]
A jetboat is a boat propelled by a jet of water ejected from the back of the craft. Unlike a powerboat or motorboat that uses an external propeller in the water below or behind the boat, a jetboat draws the water from under the boat through an intake and into a pump-jet inside the boat, before expelling it through a nozzle at the stern.
A U.S. Marine Corps Amphibious Combat Vehicle (right) and an Amphibious Assault Vehicle (left) outside the II Marine Expeditionary Force Headquarters Building at Camp Lejeune, N.C., Aug. 2018. The first phase, will consist of several hundred, commercial off-the-shelf wheeled armored vehicles, each costing $3–$4.5 million.
Internal drive propulsion or water-jet propulsion is a form of marine propulsion used in recreational boating.Like other forms of motorized boating, internal drive propulsion employs a motor that turns a propeller to move the boat forward.
The word is commonly used in the marine vernacular, and implies a mechanical assembly that is more complicated than a propeller. The Kort nozzle, pump-jet and rim-driven thruster are examples. An example propulsor is shown in the accompanying picture. It has a shroud which cuts down on blade-tip cavitation and radiated noise.
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