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XT701
The Allison T56 turboprop engine has been developed extensively throughout its production run, the many variants are described by the manufacturer as belonging to four main series groups. Initial civil variants (Series I) were designed and produced by the Allison Engine Company as the 501-D and powered the Lockheed C-130 Hercules. Later variants (Series II, III, 3,5 and IV) gave increased performance through design refinements. Further derivatives of the 501-D/T56 were produced as turboshafts for helicopters including a variant with a United States military aircraft engine designation of T701, which was developed for the canceled Boeing Vertol XCH-62 project. Commercial variants (501-D) ;501-D10: The initial civil variant, which was proposed in 1955 with of power at a brake specific fuel consumption (BSFC) of , a two-stage gearbox with a reduction ratio of 12.5:1, a 14-stage axial flow compressor with a compression ratio over 9:1, a four-stage turbine, and a , three-blade ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing Vertol XCH-62
The Boeing Vertol XCH-62 (Model 301) was a triple-turbine, heavy-lift helicopter project designed for the United States Army by Boeing Rotorcraft Systems, Boeing Vertol. Approved in 1971, one prototype reached 95% completion before it was canceled in 1975. The prototype was scrapped in 2005. Development While the CH-47 Chinook is a large helicopter by American standards, its payload of is dwarfed by the huge Soviet-Russian heavy-lift helicopters such as the Mil Mi-26, with payload, and the experimental Mil V-12, with payload. For a long time Boeing and the US military had an urge to match or top the Mil heavy lifters. In the late 1960s, Boeing came up with designs for machines with broad similarities to the Sea Knight and Chinook, but about twice the size of the Chinook in terms of linear dimensions. Proposed machines included the "Model 227" transport and the "Model 237" flying crane. The U.S. Department of Defense (DoD) issued a request for proposal (RFP) for a Heavy Lift ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sibling projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by ''Smithsonian Magazine, Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed L-188 Electra
The Lockheed L-188 Electra is an American turboprop airliner built by Lockheed Corporation, Lockheed. First flown in 1957, it was the first large turboprop airliner built in the United States. With its fairly high power-to-weight ratio, huge propellers and very short wings (resulting in the majority of the wingspan being enveloped in propwash), large Fowler flaps which significantly increased effective wing area when extended, and four-engined design, the airplane had airfield performance capabilities unmatched by many jet transport aircraft even today—particularly on short runways and high altitude airfields. Initial sales were good, but after two fatal crashes that led to expensive modifications to fix a design defect, no more were ordered. Jet airliners soon supplanted turboprops for many purposes, and many Electras were modified as freighters. Some Electras are still being used in various roles into the 21st century. The airframe was also used as the basis for the Lockheed P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Week And Space Technology
''Aviation Week & Space Technology'', often abbreviated ''Aviation Week'' or ''AW&ST'', is the flagship magazine of the Aviation Week Network, a division of Informa. The weekly magazine is available in print and online, reporting on the aerospace, defense and aviation industries, with a core focus on aerospace technology. It has a reputation for its contacts inside the United States military and industry organizations. ''Aviation Week'' was a favorite conduit for defense-related companies and labs to leak information to the public as part of their policy by press release efforts. This led to it being informally referred to "Aviation Leak and Space Mythology". History The magazine was first published in August 1916. Early editors Ladislas d'Orsy and Donald W. McIlhiney (1921 to 25) were Quiet Birdmen. Publisher (1927 to 29) Earl D. Osborn was also a Quiet Birdman. With the coming of the Space Age, the current title was adopted in 1960. Other titles the magazine has held in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed L-100
The Lockheed L-100 Hercules is the civilian variant of the prolific C-130 Hercules military transport aircraft made by the Lockheed Corporation. Its first flight occurred in 1964. Longer L-100-20 and L-100-30 versions were developed, despite this, L-100 production ended in 1992 with 114 aircraft delivered. An updated variant of the model, LM-100J, completed its first flight in Marietta, Georgia on 25 May 2017, and started production in 2019. L-100 and LM-100J aircraft can be distinguished from the C-130 and C-130J military versions by the absence of side and forward windows underneath the main windshield. Development In 1959, Pan American World Airways (Pan Am) ordered twelve of Lockheed's GL-207 Super Hercules to be delivered by 1962, to be powered by four 6,000 eshp Allison T56 turboprops; however, Pan Am never took delivery of these aircraft. Slick Airways was to receive six such aircraft later in 1962. The Super Hercules was to be longer than the C-130B; a variant powered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed L-400
Lockheed (originally spelled Loughead) may refer to: Brands and enterprises * Lockheed Corporation, a former American aircraft manufacturer * Lockheed Martin, formed in 1995 by the merger of Lockheed Corporation and Martin Marietta ** Lockheed Martin Aeronautics ** Lockheed Martin Space Systems * Lockheed Shipbuilding and Construction Company People * Flora Haines Loughead (1855-1943), American writer, farmer, miner * The brothers who founded the original Lockheed Corporation: ** Allan Loughead (1889–1969), American aviation pioneer ** Malcolm Loughead, American aviation pioneer Other uses * Lockheed (comics), a Marvel Comics character * Lockheed Martin Transit Center, in Sunnyvale, California See also * Lochhead Lochhead is a surname shared by several notable people, among them being: * Alex Lochhead (born 1866), Scottish footballer * Andy Lochhead (born 1941), Scottish footballer * Archie Lochhead (1892–1971), Scottish-American banker * Arthur Lochh ..., a surname * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aero Spacelines Super Guppy
The Aero Spacelines Super Guppy is a large, wide-bodied cargo aircraft used for hauling outsize cargo components. It was the successor to the Pregnant Guppy, the first of the Guppy aircraft produced by Aero Spacelines. Five were built in two variants, both of which were colloquially referred to as the "Super Guppy". The Super Guppy is the only airplane to carry a complete S-IVB stage, the third stage of the Saturn V rocket. It did so several times during the Apollo program. Design and development The first Super Guppy, or "SG", was built directly from a retired USAF Boeing YC-97J Stratofreighter. The fuselage was lengthened to , and ballooned out to a maximum inside diameter of , the length of the cargo compartment being . The floor of the cargo compartment was still only wide, as necessitated by the use of the Stratocruiser fuselage. In addition to the fuselage modifications, the Super Guppy used Pratt & Whitney T-34-P-7WA turboprop engines for increased power and ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed L-100 Hercules
The Lockheed L-100 Hercules is the civilian variant of the prolific C-130 Hercules military transport aircraft made by the Lockheed Corporation. Its first flight occurred in 1964. Longer L-100-20 and L-100-30 versions were developed, despite this, L-100 production ended in 1992 with 114 aircraft delivered. An updated variant of the model, LM-100J, completed its first flight in Marietta, Georgia on 25 May 2017, and started production in 2019. L-100 and LM-100J aircraft can be distinguished from the C-130 and C-130J military versions by the absence of side and forward windows underneath the main windshield. Development In 1959, Pan American World Airways (Pan Am) ordered twelve of Lockheed's GL-207 Super Hercules to be delivered by 1962, to be powered by four 6,000 eshp Allison T56 turboprops; however, Pan Am never took delivery of these aircraft. Slick Airways was to receive six such aircraft later in 1962. The Super Hercules was to be longer than the C-130B; a variant powered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federation Of American Scientists
The Federation of American Scientists (FAS) is an American nonprofit global policy think tank with the stated intent of using science and scientific analysis to attempt to make the world more secure. FAS was founded in 1945 by a group of scientists, some of whom had previously contributed to the development of nuclear weapons in the Manhattan Project. The Federation of American Scientists states that it aims to reduce the amount of nuclear weapons that are in use, and prevent nuclear and radiological terrorism. It says it aims to present high standards for nuclear energy's safety and security, illuminate government secrecy practices, as well as track and eliminate the global illicit trade of conventional, nuclear, biological and chemical weapons. With 100 sponsors, the Federation of American Scientists says that it promotes a safer and more secure world by developing and advancing solutions to important science and technology security policy problems by educating the public and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C-131
The Convair C-131 Samaritan is an American twin-engined military transport produced from 1954 to 1956 by Convair. It is the military version of the Convair CV-240 family of airliners.Gradidge 1997, p. 20–21. This was one of the last radial engined aircraft in US service, along with the Grumman C-1 Trader. Design and development The design began life in a production requirement by American Airlines for a pressurized airliner to replace the Douglas DC-3. Convair's original design had two engines and 40 seats, and thus it was designated the ''CV-240''. The first CV-240 flew on March 16, 1947, and production aircraft were first delivered to American on February 28, 1948. Seventy-five were delivered to American, with another fifty going to Western Airlines, Continental Airlines, Pan American Airways, KLM, Sabena, Swissair and Trans Australia Airlines. Operational history The CV-240/340/440 series was used by the United States Air Force (USAF) for medical evacuation and VIP tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convair CV-580
Convair, previously Consolidated Vultee Aircraft Corporation, was an American aircraft-manufacturing company that later expanded into rockets and spacecraft. The company was formed in 1943 by the merger of Consolidated Aircraft and Vultee Aircraft. In 1953, it was purchased by General Dynamics, and operated as their Convair Division for most of its corporate history. Convair is best known for its military aircraft; it produced aircraft such as the Convair B-36 Peacemaker and Convair B-58 Hustler strategic bombers, and the Convair F-102 Delta Dagger and Convair F-106 Delta Dart interceptors. It also manufactured the first Atlas rockets, including the rockets that were used for the crewed orbital flights of Project Mercury. The company's subsequent Atlas-Centaur design continued this success and derivatives of the design remain in use as of 2025. The company also entered the jet airliner business with its Convair 880 and Convair 990 designs. These were smaller than contempo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamilton Standard
Hamilton Standard was an American aircraft propeller (aircraft), propeller parts supplier. It was formed in 1929 when United Aircraft and Transport Corporation consolidated Hamilton Aero Manufacturing and Standard Steel Propeller into the Hamilton Standard Propeller Corporation. Other members of United Aircraft included Boeing, United Airlines, Sikorsky Aircraft, Sikorsky and Pratt & Whitney. At the time, Hamilton was the largest manufacturer of aircraft propellers in the world. History Standard Steel Propeller had been formed in 1918 in Pittsburgh, Pennsylvania, and Hamilton Aero Manufacturing had been formed in 1920 in Milwaukee, Wisconsin, by Thomas F. Hamilton. Charles Lindbergh's ''Spirit of St. Louis'' used a propeller made by Standard Steel Propeller Company in his historic solo crossing of the Atlantic Ocean. The two companies were merged in 1929 by the United Aircraft and Transport Corporation. In the early 1930s, Frank Walker Caldwell, Frank W. Caldwell of Hamil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
