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A hydroplane (or hydro, or thunderboat) 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 ...
Hull speed or displacement speed is the speed at which the wavelength of a vessel's bow wave is equal to the waterline length of the vessel. As boat speed increases from rest, the wavelength of the bow wave increases, and usually its crest-to-trough dimension (height) increases as well.
HSC Villum Clausen On the way from the shipyard of Austal in Australia to Rønne in Denmark the ferry had a top speed of 47.7 knots and an average of 43.4 knots, and on February 16 and 17, 2000 it had reached 1,063 sea miles within 24 hours, thereby setting the world record which was then written in the Guinness Book of Records.
A hull is the watertight body of a ship, boat, submarine, or flying boat. The hull may open at the top (such as a dinghy), or it may be fully or partially covered with a deck. Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or mast. The line where the hull meets the water surface is called the waterline.
Royal Navy World War II motor torpedo boat planing at speed on calm water showing its hard chine hull - note how most of the forepart of the boat is out of the water. At rest, a vessel's weight is borne entirely by the buoyant force. Every hull acts as a displacement hull at low speeds: the buoyant force is mainly responsible for supporting the ...
U.S. mortgage rates rose this week to the highest level since July. The benchmark 30-year fixed rate loan rate rose to 6.91% from 6.85% last week, according to mortgage giant Freddie Mac. The ...
The hull of the 118 WallyPower is the result of extensive research and development, including tank testing at the SSPA facility in Gothenburg, Sweden, and smoke testing in the Ferrari Wind Tunnel Facility in Maranello, Italy. It is stable at speed as a result of the deep V (22 degrees) hull shape and a straight stem bow designed to pierce waves.
From September 2011 to December 2012, if you bought shares in companies when Janet F. Clark joined the board, and sold them when she left, you would have a -29.3 percent return on your investment, compared to a 20.3 percent return from the S&P 500.