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How does an impeller work on a wave runner?

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You asked:
How does an impeller work on a wave runner? — Jeff, Roy, Utah

Marshall answered:
An impeller is basically a propeller inside a tube. Because it is inside a tube, a spray of water comes out of the tube that is not unlike the spray of water coming out of a fire hose. The steering system moves the tube back and forth to provide steering that is very fast and precise. For more information, see How Personal Watercraft Work.

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