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Hydroplane   Listen
noun
Hydroplane  n.  
1.
A plane, or any of a number of planes, projecting from the hull of a submarine boat, which by being elevated or depressed cause the boat, when going ahead, to sink or rise, after the manner of an aeroplane.
2.
A projecting plane or fin on a hydroplane (3) to lift the moving boat on top of the water; also, a gliding boat.
3.
A powered surface boat fitted with planes (hydroplanes (2)) projecting below the hull, designed to lift the boat, when moving rapidly, so that the hull itself is lifted out of the water and the boat is supported by the hydrodynamic forces of the water on the hydroplanes (2), thus permitting higher speeds; formerly called a gliding boat.


verb
Hydroplane  v. i.  
1.
Of a boat, to move through water while supported by hydroplanes (3) (see hydroplane 3, above).
2.
To move through a body of water supported by the hydrodynamic forces on a surface, similar in principle to a hydroplane 3; said, e..g, of automobiles skidding on a shallow patch of water on a road when moving at high speed, thus causing the tires to lose contact with the road surface.





Collaborative International Dictionary of English 0.48


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"Hydroplane" Quotes from Famous Books



... five, two." He shook his head. "We have no idea. It's apparent that there must have been some world-wide cataclysm here to change the contours of the land masses so much. We may have to wait on a return space flight to bring a 'copter or a hydroplane to explore farther." His hand swept beyond the boundaries of the map to ...
— Key Out of Time • Andre Alice Norton
... your friend, Frank. Those shining things you noticed about the biplane happened to be a couple of new aluminum pontoons under the craft, meant to float the whole affair whenever it drops in the water. They will be in common use shortly. And that machine is what we call a hydroplane—that is, it will prove to be as much at home on the water as in ...
— The Airplane Boys among the Clouds - or, Young Aviators in a Wreck • John Luther Langworthy
... not nearly so elaborately dressed, nor so insistent upon their "position," as the Jumpkinson-Joneses. By raising the brim of her hat a trifle Mrs. H.S. Jumpkinson-Jones may see, sweeping in glorious circles above the yacht, the hydroplane which, when it left the edge of the beach a few minutes since, blew back with its propeller a stinging storm of sand, and caused skirts to snap like flags in a hundred-mile-an-hour hurricane; and in that hydroplane she knows ...
— American Adventures - A Second Trip 'Abroad at home' • Julian Street


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