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Boeing Hydrofoils
Boeing has designed and built several hydrofoil craft for both military and civilian use. Passenger hydrofoil *Boeing 929 - A passenger-carrying Pump-jet, water jet-propelled hydrofoil. Military hydrofoils PCH (Submarine Chaser Hydrofoil) * PGH (Patrol Gunboat Hydrofoil) * (built by Boeing; predecessor to Boeing's commercial JetFoils) PHM (Patrol Hydrofoil Missile) *Pegasus class hydrofoils **, formerly ''Delphinus'' ** ** ** ** ** See also * References Boeing hydrofoils, {{Boeing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PHM-1
USS ''Pegasus'' (PHM-1) was the lead ship of her class of hydrofoils operated by the United States Navy. ''Pegasus''-class vessels were designed for high speed and mobility, and carried a powerful armament for their size. Naming SECNAV Notice 5030 originally gave the ship the name ''Delphinus'' after a small constellation in the Northern Celestial Hemisphere, on 15 February 1974. It was quickly realized in service that she could be nicknamed 'dull penis,' so Secretary of the Navy J. William Middendorf issued a new notice on 1 April 1974, renaming her ''Pegasus'' for the constellation Pegasus. In service it earned the nickname 'Pegasorous'. As this vessel was constructed several years before the rest of the class, there are some minor differences, notably in the fire-control systems of the respective craft. Construction ''Pegasus'' was laid down on 10 May 1973, by Boeing Marine Systems, in Seattle, Washington. She was launched on 9 November 1974, and commissioned on 9 Jul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing
The Boeing Company () is an American multinational corporation that designs, manufactures, and sells airplanes, rotorcraft, rockets, satellites, telecommunications equipment, and missiles worldwide. The company also provides leasing and product support services. Boeing is among the largest global aerospace manufacturers; it is the third-largest defense contractor in the world based on 2020 revenue, and is the largest exporter in the United States by dollar value. Boeing stock is included in the Dow Jones Industrial Average. Boeing is incorporated in Delaware. Boeing was founded by William Boeing in Seattle, Washington, on July 15, 1916. The present corporation is the result of the merger of Boeing with McDonnell Douglas on August 1, 1997. Then chairman and CEO of Boeing, Philip M. Condit, assumed those roles in the combined company, while Harry Stonecipher, former CEO of McDonnell Douglas, became president and COO. The Boeing Company's corporate headquarters is in Chicago, Illi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrofoil
A hydrofoil is a lifting surface, or foil, that operates in water. They are similar in appearance and purpose to aerofoils used by aeroplanes. Boats that use hydrofoil technology are also simply termed hydrofoils. As a hydrofoil craft gains speed, the hydrofoils lift the boat's hull out of the water, decreasing drag and allowing greater speeds. Description The hydrofoil usually consists of a winglike structure mounted on struts below the hull, or across the keels of a catamaran in a variety of boats (see illustration). As a hydrofoil-equipped watercraft increases in speed, the hydrofoil elements below the hull(s) develop enough lift to raise the hull out of the water, which greatly reduces hull drag. This provides a corresponding increase in speed and fuel efficiency. Wider adoption of hydrofoils is prevented by the increased complexity of building and maintaining them. Hydrofoils are generally prohibitively more expensive than conventional watercraft above a certain disp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing 929
The Boeing 929 Jetfoil are passenger-carrying, waterjet-propelled hydrofoils by Boeing. Boeing adapted many systems used in jet airplanes for hydrofoils. Robert Bateman led development. Boeing launched its first passenger-carrying waterjet-propelled hydrofoil in April 1974. It could carry from 167 to 400 passengers. It was based on technology developed for the U.S. Navy patrol hydrofoil Tucumcari, and shared technology with the Pegasus class military patrol hydrofoils. The product line was licensed to the Japanese company Kawasaki Heavy Industries. File:Princesse Stpehanie.jpg, Jetfoil 929-115-020 ''Princesse Stephanie'' of RMT File:20091105-TurboJET Urzela.jpg, Jetfoil 929-100-007 ''Urzela'' of TurboJET File:Tokaikisen-niji.jpg, Jetfoil 929-115-019 ''Niji'' of Tōkai Kisen Operational history Boeing launched three Jetfoil 929-100 hydrofoils that were acquired in 1975 for service in the Hawaiian Islands, which was operated by a Honolulu-based operator Seaflite. Seaflite opera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pump-jet
A pump-jet, hydrojet, or water jet is a marine system that produces a jet of water for propulsion. The mechanical arrangement may be a ducted propeller (axial-flow pump), a centrifugal pump, or a mixed flow pump which is a combination of both centrifugal and axial designs. The design also incorporates an intake to provide water to the pump and a nozzle to direct the flow of water out of the pump.http://www.hamiltonmarine.co.nz/includes/files_cms/file/JetTorque%2008.pdf Design A pump-jet works by having an intake (usually at the bottom of the hull) that allows water to pass underneath the vessel into the engines. Water enters the pump through this inlet. The pump can be of a centrifugal design for high speeds, or an axial flow pump for low to medium speeds. The water pressure inside the inlet is increased by the pump and forced backwards through a nozzle. With the use of a ''reversing bucket'', reverse thrust can also be achieved for faring backwards, quickly and withou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pegasus Class Hydrofoil
The ''Pegasus''-class hydrofoils were a series of fast attack patrol boats employed by the United States Navy. They were in service from 1977 until 1993. These hydrofoils carried the designation "PHM" for "Patrol Hydrofoil, Missile." The ''Pegasus''-class vessels were originally intended for NATO operations in the North Sea and Baltic Sea. Subsequently, participation by other NATO navies, including Germany and Italy, ceased and the U.S. Navy proceeded to procure six PHMs, which were highly successful in conducting coastal operations, such as narcotics interdiction and coastal patrol, in the Caribbean basin. History In the late 1960s, NATO developed a requirement for a small, fast warship to counter large numbers of Warsaw Pact missile boats, such as the and es, deciding that a hydrofoil would be the best way to meet this requirement. In 1970 Admiral Elmo Zumwalt, the new Chief of Naval Operations (CNO), keen to increase the Navy's number of surface vessels in a cost-effective ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
