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XB-51
The Martin XB-51 was an American trijet ground-attack aircraft. It was designed in 1945 and made its maiden flight in 1949. It was originally designed as a bomber for the United States Army Air Forces under specification V-8237-1 and was designated XA-45. The "A" ground-attack classification was eliminated the next year, and the XB-51 designation was assigned instead. The requirement was for low-level bombing and close support. The XB-51 lost out in evaluation to the English Electric Canberra which - built by Martin - entered service as the Martin B-57 Canberra. Design and development This unorthodox design, first flying on 28 October 1949, was fitted with three General Electric J47 engines - an unusual number for a combat aircraft - two underneath the forward fuselage in pods, and one at the extreme tail with the intake at the base of the tailfin. The innovative, variable incidence wings, swept at 35° and with 6° anhedral, were equipped with leading edge slats and full-w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toward The Unknown
''Toward the Unknown'', originally called ''Flight Test Center'' and titled ''Brink of Hell'' in its UK release, is a 1956 American war film about the dawn of supersonic flight filmed on location at Edwards Air Force Base. Starring William Holden, Lloyd Nolan and Virginia Leith, the film features the screen debut of James Garner. ''Toward the Unknown'' was directed by Mervyn LeRoy and written by Beirne Lay, Jr. who had also penned the novel and screenplay for ''Twelve O'Clock High'' (1949), and later screenplays for '' Above and Beyond'' (1952) and ''Strategic Air Command'' (1955). The film's title is derived from the motto of the Air Force Flight Test Center, ''Ad Inexplorata''.Erickson, Glenn"Toward the Unknown."''DVD Savant,'' June 11, 2011. Retrieved: November 13, 2011. Plot USAF Major Lincoln Bond was captured during the Korean War and subjected to torture, finally cracking after 14 months and signing a confession used for propaganda. Upon his release, he took a year to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin B-57 Canberra
The Martin B-57 Canberra is an American-built, twin-engined tactical bomber and reconnaissance aircraft that entered service with the United States Air Force (USAF) in 1953. The B-57 is a license-built version of the British English Electric Canberra, manufactured by the Glenn L. Martin Company. Initial Martin-built models were virtually identical to their British-built twinjet counterparts; Martin later modified the design to incorporate larger quantities of US-sourced components and produced the aircraft in several different variants. The B-57 Canberra holds the distinction of being the first jet bomber in U.S. service to drop bombs during combat. The Canberra was used extensively during the Vietnam War in a bombing capacity; dedicated versions of the type were also produced and served as high-altitude aerial reconnaissance platforms (the Martin RB-57D Canberra), and as electronic warfare aircraft. The B-57 Canberra was also sold to export customers abroad; further combat u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trijet
A trijet is a jet aircraft powered by three jet engines. In general, passenger airline trijets are considered to be second-generation jet airliners, due to their innovative engine locations, in addition to the advancement of turbofan technology. Trijets are more efficient than quadjets, but not as efficient as twinjets, which replaced trijets as larger and more reliable turbofan engines became available. Design One consideration with trijets is positioning the central engine. This is usually accomplished by placing the engine along the centerline, but still poses difficulties. The most common configuration is having the central engine located in the rear fuselage and supplied with air by an S-shaped duct; this is used on the Hawker Siddeley Trident, Boeing 727, Tupolev Tu-154, Lockheed L-1011 TriStar, and, more recently, the Dassault Falcon 7X. The S-duct has low drag, and since the third engine is mounted closer to the centerline, the aircraft will normally be easy t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Electric Canberra
The English Electric Canberra is a British first-generation, jet-powered medium bomber. It was developed by English Electric during the mid- to late 1940s in response to a 1944 Air Ministry requirement for a successor to the wartime de Havilland Mosquito fast bomber. Among the performance requirements for the type was an outstanding high-altitude bombing capability and high speed. These were partly accomplished by making use of newly developed jet-propulsion technology. When the Canberra was introduced to service with the Royal Air Force (RAF), the type's first operator, in May 1951, it became the service's first jet-powered bomber. In February 1951, a Canberra set another world record when it became the first jet aircraft to make a nonstop transatlantic flight. Throughout most of the 1950s, the Canberra could fly at a higher altitude than any other aircraft in the world, and in 1957, a Canberra established a world altitude record of . Due to its ability to evade the early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric J47
The General Electric J47 turbojet (GE company designation TG-190) was developed by General Electric from its earlier J35. It first flew in May 1948. The J47 was the first axial-flow turbojet approved for commercial use in the United States. It was used in many types of aircraft, and more than 30,000 were manufactured before production ceased in 1956. It saw continued service in the US military until 1978. Packard built 3,025 of the engines under license. Design and development The J47 design used experience from the TG-180/J35 engine which was described by '' Flight'' magazine in 1948 as the most widely used American-conceived turbojet. Overhaul life for the J47 ranged from 15 hours (in 1948) to a theoretical 1,200 hours (625 achievable in practice) in 1956. For example, the J47-GE-23 was rated to run 225 hours time between overhauls. As installed on the F-86F, it experienced one in-flight shutdown every 33,000 hours in 1955 and 1956. Variants ;J47-GE-1:(TG-190A) thrust. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable-incidence Wing
A variable-incidence wing has an adjustable angle of incidence relative to its fuselage. This allows the wing to operate at a high angle of attack for take-off and landing while allowing the fuselage to remain close to horizontal. The pivot mechanism adds extra weight over a conventional wing and increases costs, however in some applications the benefits can outweigh the costs. Several examples have flown, with one, the F-8 Crusader carrier-borne jet fighter, entering production. History Some early aeroplanes had wings which could be varied in incidence for control and trim, in place of conventional elevator control surfaces. Wing warping varied the incidence of the outer wing and was used by several pioneers, including initially the Wright brothers. Early examples of rigid variable-incidence wings were not particularly successful. They include the Mulliner Knyplane in 1911, the Ratmanoff monoplane in 1913 and the Pasul Schmidt biplane, also in 1913. A patent for a rigid var ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric J47-GE-13
The General Electric J47 turbojet (GE company designation TG-190) was developed by General Electric from its earlier J35. It first flew in May 1948. The J47 was the first axial-flow turbojet approved for commercial use in the United States. It was used in many types of aircraft, and more than 30,000 were manufactured before production ceased in 1956. It saw continued service in the US military until 1978. Packard built 3,025 of the engines under license. Design and development The J47 design used experience from the TG-180/J35 engine which was described by '' Flight'' magazine in 1948 as the most widely used American-conceived turbojet. Overhaul life for the J47 ranged from 15 hours (in 1948) to a theoretical 1,200 hours (625 achievable in practice) in 1956. For example, the J47-GE-23 was rated to run 225 hours time between overhauls. As installed on the F-86F, it experienced one in-flight shutdown every 33,000 hours in 1955 and 1956. Variants ;J47-GE-1:(TG-190A) thrust. ; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin XB-51 3-view Line Drawing
Martin may refer to: Places * Martin City (other) * Martin County (other) * Martin Township (other) Antarctica * Martin Peninsula, Marie Byrd Land * Port Martin, Adelie Land * Point Martin, South Orkney Islands Australia * Martin, Western Australia * Martin Place, Sydney Caribbean * Martin, Saint-Jean-du-Sud, Haiti, a village in the Sud Department of Haiti Europe * Martin, Croatia, a village in Slavonia, Croatia * Martin, Slovakia, a city * Martín del Río, Aragón, Spain * Martin (Val Poschiavo), Switzerland England * Martin, Hampshire * Martin, Kent * Martin, East Lindsey, Lincolnshire, hamlet and former parish in East Lindsey district * Martin, North Kesteven, village and parish in Lincolnshire in North Kesteven district * Martin Hussingtree, Worcestershire * Martin Mere, a lake in Lancashire ** WWT Martin Mere, a wetland nature reserve that includes the lake and surrounding areas * Martin Mill, Kent North America Canada * Rural Municipality ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tales Of Tomorrow
''Tales of Tomorrow'' is an American anthology science fiction series that was performed and broadcast live on ABC from 1951 to 1953. The series covered such stories as ''Frankenstein'' starring Lon Chaney Jr., ''20,000 Leagues Under the Sea'' starring Thomas Mitchell as Captain Nemo, and many others. Cast Besides Chaney and Mitchell, the show featured such performers as Boris Karloff, James Dean, Brian Keith, Lee J. Cobb, Veronica Lake, Rod Steiger, Bruce Cabot, Franchot Tone, Louis Hector, Gene Lockhart, Walter Abel, Cloris Leachman, Leslie Nielsen, Joanne Woodward and Paul Newman. The series had many similarities to the later '' Twilight Zone'' which also covered one of the same stories, " What You Need". In total it ran for eighty-five 30-minute episodes. It was called “the best science-fiction fare on TV today” by Paul Fairman, editor of '' If.'' Production The idea for this science fiction television series was developed by Theodore Sturgeon and Mort Abraham ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NACA Airfoil
The NACA airfoils are airfoil shapes for aircraft wings developed by the National Advisory Committee for Aeronautics (NACA). The shape of the NACA airfoils is described using a series of digits following the word "NACA". The parameters in the numerical code can be entered into equations to precisely generate the cross-section of the airfoil and calculate its properties. Origins NACA initially developed the numbered airfoil system which was further refined by the United States Air Force at Langley Research Center. According to the NASA website: Four-digit series The NACA four-digit wing sections define the profile by: # First digit describing maximum camber as percentage of the chord. # Second digit describing the distance of maximum camber from the airfoil leading edge in tenths of the chord. # Last two digits describing maximum thickness of the airfoil as percent of the chord. For example, the NACA 2412 airfoil has a maximum camber of 2% located 40% (0.4 chords) from the l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forward Airfield
Advance airfield and forward airfield are military terms for a relatively primitive ad-hoc airfield used for refueling and re-arming air units as part of forward operations near the enemy. Also called advanced airfield for its advanced position, not advanced facilities, such an airfield typically does not carry full aircraft maintenance and service units, and lacks the comfort and security of a major air base. Advance airfields may be subject to enemy observation and attack. They may be expected to change hands after a battle. The advantages of using advance airfields are various. Air raids can penetrate deeper into enemy-held territory, surprising the enemy with unexpected range. Air units stationed nearer the front can respond more quickly to the needs of friendly land and naval units. Damaged aircraft can land at the advance airfield to save those aboard, and possibly the aircraft. Wounded personnel can be brought to the advance airfield to be evacuated for more complete hospital ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
