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Aircraft Catapult
An aircraft catapult is a device used to allow aircraft to take off from a very limited amount of space, such as the deck of a vessel, but can also be installed on land-based runways in rare cases. It is now most commonly used on aircraft carriers, as a form of assisted take off. In the form used on aircraft carriers the catapult consists of a track, or slot, built into the flight deck, below which is a large piston or ''shuttle'' that is attached through the track to the nose gear of the aircraft, or in some cases a wire rope, called a catapult bridle, is attached to the aircraft and the catapult shuttle. Other forms have been used historically, such as mounting a launching cart holding a seaplane on a long girder-built structure mounted on the deck of a warship or merchant vessel, but most catapults share a similar sliding track concept. Different means have been used to propel the catapult, such as weight and derrick, gunpowder, flywheel, air pressure, hydraulic, and steam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Saratoga (CVA-60), F-14 On Catapult
USS ''Saratoga'' may refer to the following United States Navy warships: * , an 18-gun sloop-of-war launched in 1780; lost at sea the following year * , a 26-gun corvette built on Lake Champlain for service in the War of 1812 * , a 22-gun sloop-of-war; commissioned 1843; served until 1888 * , a later name for the armored cruiser * , a never-completed converted into an aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft. Typically, it is the capital ship of a fleet, as it allows a ... * , a commissioned in 1927; active in World War II; was sunk by atomic bomb test in 1946 * , a supercarrier; commissioned 1956; decommissioned 1994 See also * , a United States Army transport ship in World War I {{DEFAULTSORT:Saratoga United States Navy ship names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solid-propellant Rocket
A solid-propellant rocket or solid rocket is a rocket with a rocket engine that uses solid propellants ( fuel/oxidizer). The earliest rockets were solid-fuel rockets powered by gunpowder; they were used in warfare by the Arabs, Chinese, Persians, Mongols, and Indians as early as the 13th century. All rockets used some form of solid or powdered propellant up until the 20th century, when liquid-propellant rockets offered more efficient and controllable alternatives. Solid rockets are still used today in military armaments worldwide, model rockets, solid rocket boosters and on larger applications for their simplicity and reliability. Since solid-fuel rockets can remain in storage for an extended period without much propellant degradation and because they almost always launch reliably, they have been frequently used in military applications such as missiles. The lower performance of solid propellants (as compared to liquids) does not favor their use as primary propulsion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore Gordon Ellyson
Theodore Gordon Ellyson, USN (27 February 1885 – 27 February 1928), nicknamed "Spuds", was the first United States Navy officer designated as an aviator ("Naval Aviator No. 1"). Ellyson served in the experimental development of aviation in the years before and after World War I. He also spent several years before the war as part of the Navy's new submarine service. A recipient of the Navy Cross for his antisubmarine service in World War I, Ellyson died in 1928 when his aircraft crashed over the Chesapeake Bay. Early life and pre-aviation naval career Born in Richmond, Virginia, Ellyson entered the United States Naval Academy in 1901 and graduated with the class of 1905. During the five years following his graduation, he served on USS ''Texas'' and ; as Watch and Division Officer of USS ''Pennsylvania'' and later USS ''Colorado''; and on USS ''West Virginia'', USS ''Rainbow'', and USS ''Shark'' on the Asiatic Station. After his return to the United States in April ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Langley Aerodrome
The Langley Aerodrome was a pioneering but unsuccessful manned, tandem wing-configuration powered flying machine, designed at the close of the 19th century by Smithsonian Institution Secretary Samuel Langley. The U.S. Army paid $50,000 for the project in 1898 after Langley's successful flights with small-scale uncrewed models two years earlier. Design and development Langley coined the name "Aerodrome" and applied it to a series of engine-driven uncrewed and crewed tandem wing aircraft that were built under his supervision by Smithsonian staff in the 1890s and early 1900s. The term is derived from Greek words meaning "air runner". After a series of unsuccessful tests beginning in 1894, Langley's uncrewed steam-driven model "Number 5" made a successful 90-second flight of over at about per hour at a height of to on May 6, 1896. In November, model "Number 6" flew almost . Both aircraft were launched by catapult from a houseboat in the Potomac River near Quantico, Virginia, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Langley
Samuel Pierpont Langley (August 22, 1834 – February 27, 1906) was an American aviation pioneer, astronomer and physicist who invented the bolometer. He was the third secretary of the Smithsonian Institution and a professor of astronomy at the University of Pittsburgh, where he was the director of the Allegheny Observatory. Life Langley was born in Roxbury, Boston, on August 23, 1834. Langley attended Boston Latin School and graduated from English High School of Boston, after which he became an assistant in the Harvard College Observatory. He then moved to a job at the United States Naval Academy, ostensibly as a professor of mathematics. However, he was actually sent there to restore the Academy's small observatory. In 1867, he became the director of the Allegheny Observatory and a professor of astronomy at the University of Pittsburgh (then known as the Western University of Pennsylvania), a post he kept until 1891 even while he became the third Secretary of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smithsonian Institution
The Smithsonian Institution ( ), or simply the Smithsonian, is a group of museums and education and research centers, the largest such complex in the world, created by the U.S. government "for the increase and diffusion of knowledge". Founded on August 10, 1846, it operates as a trust instrumentality and is not formally a part of any of the three branches of the federal government. The institution is named after its founding donor, British scientist James Smithson. It was originally organized as the United States National Museum, but that name ceased to exist administratively in 1967. Called "the nation's attic" for its eclectic holdings of 154 million items, the institution's 19 museums, 21 libraries, nine research centers, and zoo include historical and architectural landmarks, mostly located in the District of Columbia. Additional facilities are located in Maryland, New York, and Virginia. More than 200 institutions and museums in 45 states,States without Smith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Pioneers
Aviation pioneers are people directly and indirectly responsible for the advancement of flight, including people who worked to achieve manned flight before the invention of aircraft, as well as others who achieved significant "firsts" in aviation after heavier-than-air flight became routine. Pioneers of aviation have contributed to the development of aeronautics in one or more ways: through science and theory, theoretical or applied design, by constructing models or experimental prototypes, the mass production of aircraft for commercial and government request, achievements in flight, and providing financial resources and publicity to expand the field of aviation. Table key Pioneer type * Science: Contributions to aerodynamic theory, aviation principles, discoveries advancing aircraft development, etc. * Design: Original or derivative ideas or drawings for conceptual/experimental/practical methods of air travel * Construction: Building prototypes/experimental/practical aircraft * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convoy
A convoy is a group of vehicles, typically motor vehicles or ships, traveling together for mutual support and protection. Often, a convoy is organized with armed defensive support and can help maintain cohesion within a unit. It may also be used in a non-military sense, for example when driving through remote areas. Naval convoys Age of Sail Naval convoys have been in use for centuries, with examples of merchant ships traveling under naval protection dating to the 12th century. The use of organized naval convoys dates from when ships began to be separated into specialist classes and national navies were established. By the French Revolutionary Wars of the late 18th century, effective naval convoy tactics had been developed to ward off pirates and privateers. Some convoys contained several hundred merchant ships. The most enduring system of convoys were the Spanish treasure fleets, that sailed from the 1520s until 1790. When merchant ships sailed independently, a privateer cou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawker Hurricane
The Hawker Hurricane is a British single-seat fighter aircraft of the 1930s–40s which was designed and predominantly built by Hawker Aircraft Ltd. for service with the Royal Air Force (RAF). It was overshadowed in the public consciousness by the Supermarine Spitfire during the Battle of Britain in 1940, but the Hurricane inflicted 60 percent of the losses sustained by the Luftwaffe in the campaign, and fought in all the major theatres of the Second World War. The Hurricane originated from discussions between RAF officials and aircraft designer Sir Sydney Camm about a proposed monoplane derivative of the Hawker Fury biplane in the early 1930s. Despite an institutional preference for biplanes and lack of interest by the Air Ministry, Hawker refined their monoplane proposal, incorporating several innovations which became critical to wartime fighter aircraft, including retractable landing gear and the more powerful Rolls-Royce Merlin engine. The Air Ministry ordered Haw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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