Definition of hydrofoil
1 : a body similar to an airfoil but designed for action in or on water
2 : a motorboat that has metal plates or fins attached by struts fore and aft for lifting the hull clear of the water as speed is attained
Recent Examples of hydrofoil from the Web
Their pedaling powers the hydraulic systems used to trim the wingsail and raise and lower the daggerboards, or retractable centerboards, that are tipped with hydrofoils.
The team is known for its innovation, like being the first to put an America’s Cup boat on hydrofoils, and was desperate for some kind of advantage.
With the 26-year-old Peter Burling calmly steering the 50-foot catamaran, the Kiwis became the first crew to sail around the seven-leg course entirely on hydrofoils, with the hulls never touching the water until just after the finish line.
The boat’s hulls lift out of the water on hydrofoils, allowing the boat to fly across the surface of the water at speeds of up to 60 miles per hour.
Under his grips is a bespoke steering wheel created by Land Rover engineers, molded to the shape of his hands and with paddles to enable him to steer the boat but also control the boat's height in the water through the hydrofoils.
The Jetfoiler, created by Kai Concepts, is a motorized surfboard that hovers over water, and is powered by a hydrofoil motor under the board.
Branson offered him the chance to learn to kitesurf, with a small challenge folded in: Could Obama master kitesurfing before Branson learned to foilboard (ride a surfboard propelled above the water by a hydrofoil)?
The Aquaskipper‘s patented hydrofoil design was just recently named one of the top 25 inventions of 2007 by Modern Marvels.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hydrofoil'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of hydrofoil
HYDROFOIL Defined for English Language Learners
Definition of hydrofoil for English Language Learners
: a very fast boat that rises partly out of the water when moving at high speeds
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