an airplane that can land on or take off from water
"the designer of marine aircraft demonstrated his newest hydroplane"
a speedboat that is equipped with winglike structures that lift it so that it skims the water at high speeds
"the museum houses a replica of the jet hydroplane that broke the record"
glide on the water in a hydroplane
a powered surface boat fitted with planes (hydroplanes) 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, thus permitting higher speeds; formerly called a gliding boat.
to move through a body of water supported by the hydrodynamic forces on a surface, similar in principle to a hydroplane; -- 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.
: A specific type of motorboat used exclusively for racing.
The wing of a submarine, used to help control depth.
To skim the surface of a body of water while moving at high speed.
Origin: From hydro- "water" + plane
A hydroplane is a fast motorboat, where the hull shape is such that at speed, the weight of the boat is supported by planing forces, rather than simple buoyancy. A key aspect of hydroplanes is that they use the water they are on for lift rather than buoyancy, as well as for propulsion and steering: when travelling at high speed water is forced downwards by the bottom of the boat's hull. The water therefore exerts an equal and opposite force upwards, lifting the vast majority of the hull out of the water. This process, happening at the surface of the water, is known as ‘planing’.
The numerical value of hydroplane in Chaldean Numerology is: 5
The numerical value of hydroplane in Pythagorean Numerology is: 1
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