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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



... was 40 knots, or nearly a mile a minute. They were driven by twin screws coupled to twin engines of 350 h.p. each—working at 1350 revolutions per minute. Being of very shallow draught, some 26 inches, these little vessels could skim, hydroplane fashion, over any ordinary mine-field, and a torpedo fired at them would merely pass under their keel. The risk of destruction from shell-fire was also reduced to a minimum by their small size and great speed. Their principal enemies ...
— Submarine Warfare of To-day • Charles W. Domville-Fife
... 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 indicate the ...
— Key Out of Time • Andre Alice Norton


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