81-593: A short take-off and vertical landing aircraft ( STOVL aircraft ) is a fixed-wing aircraft that is able to take off from a short runway (or take off vertically if it does not have a heavy payload) and land vertically (i.e. with no runway). The formal NATO definition (since 1991) is: A Short Take-Off and Vertical Landing aircraft is a fixed-wing aircraft capable of clearing a 15 m (50 ft) obstacle within 450 m (1,500 ft) of commencing take-off run, and capable of landing vertically. On aircraft carriers , non-catapult-assisted fixed-wing short takeoffs are accomplished with
162-705: A Mikoyan-Gurevich MiG-15 in Korea, although by this time the F-80 (as it was redesignated in June 1948) was already considered obsolete. Starting with the P-80, Lockheed's secret development work was conducted by its Advanced Development Division, more commonly known as the Skunk works . The name was taken from Al Capp 's comic strip Li'l Abner . This organization has become famous and spawned many successful Lockheed designs, including
243-513: A parachute drop zone . The gliders were treated as disposable, constructed from inexpensive materials such as wood, though a few were re-used. By the time of the Korean War , transport aircraft had become larger and more efficient so that even light tanks could be dropped by parachute, obsoleting gliders. Even after the development of powered aircraft, gliders continued to be used for aviation research . The NASA Paresev Rogallo flexible wing
324-460: A pilot , but some are unmanned and controlled either remotely or autonomously. Kites were used approximately 2,800 years ago in China, where kite building materials were available. Leaf kites may have been flown earlier in what is now Sulawesi , based on their interpretation of cave paintings on nearby Muna Island . By at least 549 AD paper kites were flying, as recorded that year, a paper kite
405-679: A Vickers Vimy in 1919 , followed months later by the U.S. Navy's NC-4 transatlantic flight ; culminating in May 1927 with Charles Lindbergh 's solo trans-Atlantic flight in the Spirit of St. Louis spurring ever-longer flight attempts. Airplanes had a presence in the major battles of World War II. They were an essential component of military strategies, such as the German Blitzkrieg or the American and Japanese aircraft carrier campaigns of
486-416: A glider) made out of paper or paperboard. Model glider aircraft are models of aircraft using lightweight materials such as polystyrene and balsa wood . Designs range from simple glider aircraft to accurate scale models , some of which can be very large. Glide bombs are bombs with aerodynamic surfaces to allow a gliding flight path rather than a ballistic one. This enables stand-off aircraft to attack
567-400: A glider. Gliders and sailplanes that are used for the sport of gliding have high aerodynamic efficiency. The highest lift-to-drag ratio is 70:1, though 50:1 is common. After take-off, further altitude can be gained through the skillful exploitation of rising air. Flights of thousands of kilometers at average speeds over 200 km/h have been achieved. One small-scale example of a glider
648-508: A leafy texture. Lockheed ranked tenth among United States corporations in the value of wartime production contracts. All told, Lockheed and its subsidiary Vega produced 19,278 aircraft during World War II, representing six percent of war production, including 2,600 Venturas , 2,750 Boeing B-17 Flying Fortress bombers (built under license from Boeing ), 2,900 Hudson bombers, and 9,000 Lightnings. During World War II, Lockheed, in cooperation with Trans-World Airlines (TWA), had developed
729-526: A limited propulsion system for takeoff, or to extend flight duration. As is the case with planes, gliders come in diverse forms with varied wings, aerodynamic efficiency, pilot location, and controls. Large gliders are most commonly born aloft by a tow-plane or by a winch . Military gliders have been used in combat to deliver troops and equipment, while specialized gliders have been used in atmospheric and aerodynamic research. Rocket-powered aircraft and spaceplanes have made unpowered landings similar to
810-734: A separate dedicated lift engine alongside the main engine, and the Gas-Driven Lift Fan (GDLF) by McDonnell Douglas that used the main engine bleed air to power a lift fan; all methods had an aft vectoring nozzle for the main engine. ASTOVL would continue under the Common Affordable Lightweight Fighter (CALF) program, which eventually became part of the Joint Strike Fighter program ; the Lockheed Martin X-35B with
891-544: A slate of his own choosing, since he was the largest investor. His board nominations included former Texas Senator John Tower , the onetime chairman of the Armed Services Committee , and Admiral Elmo Zumwalt Jr ., a former Chief of Naval Operations. Simmons had first begun accumulating Lockheed stock in early 1989 when deep Pentagon cuts to the defense budget had driven down prices of military contractor stocks, and analysts had not believed he would attempt
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#1732764690430972-635: A streamlined fuselage and long narrow wings incorporating a high aspect ratio . Single-seat and two-seat gliders are available. Initially, training was done by short "hops" in primary gliders , which have no cockpit and minimal instruments. Since shortly after World War II, training is done in two-seat dual control gliders, but high-performance two-seaters can make long flights. Originally skids were used for landing, later replaced by wheels, often retractable. Gliders known as motor gliders are designed for unpowered flight, but can deploy piston , rotary , jet or electric engines . Gliders are classified by
1053-465: A successful passenger-carrying glider in 1853. In 1856, Frenchman Jean-Marie Le Bris made the first powered flight, had his glider L'Albatros artificiel towed by a horse along a beach. In 1884, American John J. Montgomery made controlled flights in a glider as a part of a series of gliders he built between 1883 and 1886. Other aviators who made similar flights at that time were Otto Lilienthal , Percy Pilcher , and protégés of Octave Chanute . In
1134-452: A target from a distance. A kite is a tethered aircraft held aloft by wind that blows over its wing(s). High pressure below the wing deflects the airflow downwards. This deflection generates horizontal drag in the direction of the wind. The resultant force vector from the lift and drag force components is opposed by the tension of the tether . Kites are mostly flown for recreational purposes, but have many other uses. Early pioneers such as
1215-830: Is a heavier-than-air aircraft , such as an airplane , which is capable of flight using aerodynamic lift . Fixed-wing aircraft are distinct from rotary-wing aircraft (in which a rotor mounted on a spinning shaft generates lift), and ornithopters (in which the wings oscillate to generate lift). The wings of a fixed-wing aircraft are not necessarily rigid; kites, hang gliders , variable-sweep wing aircraft, and airplanes that use wing morphing are all classified as fixed wing. Gliding fixed-wing aircraft, including free-flying gliders and tethered kites , can use moving air to gain altitude. Powered fixed-wing aircraft (airplanes) that gain forward thrust from an engine include powered paragliders , powered hang gliders and ground effect vehicles . Most fixed-wing aircraft are operated by
1296-404: Is a lightweight, free-flying, foot-launched glider with no rigid body. The pilot is suspended in a harness below a hollow fabric wing whose shape is formed by its suspension lines. Air entering vents in the front of the wing and the aerodynamic forces of the air flowing over the outside power the craft. Paragliding is most often a recreational activity. A paper plane is a toy aircraft (usually
1377-408: Is capable of taking off and landing (alighting) on water. Seaplanes that can also operate from dry land are a subclass called amphibian aircraft . Seaplanes and amphibians divide into two categories: float planes and flying boats . Many forms of glider may include a small power plant. These include: A ground effect vehicle (GEV) flies close to the terrain, making use of the ground effect –
1458-526: Is sport and recreation. Gliders were developed in the 1920s for recreational purposes. As pilots began to understand how to use rising air, sailplane gliders were developed with a high lift-to-drag ratio . These allowed the craft to glide to the next source of " lift ", increasing their range. This gave rise to the popular sport of gliding . Early gliders were built mainly of wood and metal, later replaced by composite materials incorporating glass, carbon or aramid fibers. To minimize drag , these types have
1539-649: Is the paper airplane. An ordinary sheet of paper can be folded into an aerodynamic shape fairly easily; its low mass relative to its surface area reduces the required lift for flight, allowing it to glide some distance. Gliders and sailplanes share many design elements and aerodynamic principles with powered aircraft. For example, the Horten H.IV was a tailless flying wing glider, and the delta-winged Space Shuttle orbiter glided during its descent phase. Many gliders adopt similar control surfaces and instruments as airplanes. The main application of modern glider aircraft
1620-662: Is used on the F-35B which entered service on 31 July 2015. Larger STOVL designs were considered, the Armstrong Whitworth AW.681 cargo aircraft was under development when cancelled in 1965. The Dornier Do 31 got as far as three experimental aircraft before cancellation in 1970. Although mostly a VTOL design, the Bell Boeing V-22 Osprey has increased payload when taking off from a short runway. Fixed-wing aircraft A fixed-wing aircraft
1701-621: The Allison YT40 turboprop engine driving contra-rotating propellers . The British Hawker P.1127 took off vertically in 1960, and demonstrated conventional take-off in 1961. It was developed into the Hawker Siddeley Harrier which flew in 1967. In 1962, Lockheed built the XV-4 Hummingbird for the U.S. Army . It sought to "augment" available thrust by injecting the engine exhaust into an ejector pump in
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#17327646904301782-507: The DC-10 ) strongly opposed the bill and they feared the government would steer contracts to Lockheed to insure loan payments. Admiral Hyman G. Rickover condemned the bill saying it represented "a new philosophy where we privatize profits and socialize losses." The New York Times editorial board held that the Nixon administration was violating its own free enterprise principles by advocating for
1863-550: The FAI for competitions into glider competition classes mainly on the basis of wingspan and flaps. A class of ultralight sailplanes, including some known as microlift gliders and some known as airchairs, has been defined by the FAI based on weight. They are light enough to be transported easily, and can be flown without licensing in some countries. Ultralight gliders have performance similar to hang gliders , but offer some crash safety as
1944-736: The Hawker Siddeley Harrier and the BAe Sea Harrier . Although technically a V/STOL aircraft, they are operationally STOVL aircraft due to the extra weight carried at take-off for fuel and armaments. The same is true of the B variant of the Lockheed Martin F-35 Lightning II , which demonstrated VTOL capability in test flights but is operationally a STOVL. In 1951, the Lockheed XFV and the Convair XFY Pogo tailsitters were both designed around
2025-540: The Imperial Japanese Army . At the beginning of World War II, Lockheed – under the guidance of Clarence (Kelly) Johnson , who is considered one of the best-known American aircraft designers – answered a specification for an interceptor by submitting the P-38 Lightning fighter aircraft, a twin-engined, twin-boom design. The P-38 was the only American fighter aircraft in production throughout
2106-565: The L-049 Constellation , a radical new airliner capable of flying 43 passengers between New York and London at a speed of 300 mph (480 km/h) in 13 hours. Once the Constellation (nicknamed Connie ) went into production, the military received the first production models; after the war, the airlines received their original orders, giving Lockheed more than a year's head-start over other aircraft manufacturers in what
2187-800: The Lockheed Aircraft Company ( spelled phonetically to prevent mispronunciation) in Hollywood. This new company used some of the same technology originally developed for the Model S-1 to design the Vega Model . In March 1928, the company relocated to Burbank, California , and by year's end reported sales exceeding one million dollars. From 1926 to 1928 the company produced over 80 aircraft and employed more than 300 workers who by April 1929 were building five aircraft per week. In July 1929, majority shareholder Fred Keeler sold 87% of
2268-470: The Wright Brothers and J.W. Dunne sometimes flew an aircraft as a kite in order to confirm its flight characteristics, before adding an engine and flight controls. Kites have been used for signaling, for delivery of munitions , and for observation , by lifting an observer above the field of battle, and by using kite aerial photography . Lockheed Corporation The Lockheed Corporation
2349-534: The Wright Flyer III was capable of fully controllable, stable flight for substantial periods. In 1906, Brazilian inventor Alberto Santos Dumont designed, built and piloted an aircraft that set the first world record recognized by the Aéro-Club de France by flying the 14 bis 220 metres (720 ft) in less than 22 seconds. The flight was certified by the FAI. The Bleriot VIII design of 1908
2430-545: The "Lockheed Loan". Even after its adoption, a further controversy developed when the Emergency Loan Guarantee Board set up by the Executive branch to oversee the loan refused to allow Congress' General Accounting Office to examine its records. They argued that the office was attempting "interference in the decision-making process" amounting to an effort to "bully" and "harass" the board. This claim
2511-455: The 1890s, Lawrence Hargrave conducted research on wing structures and developed a box kite that lifted the weight of a man. His designs were widely adopted. He also developed a type of rotary aircraft engine, but did not create a powered fixed-wing aircraft. Sir Hiram Maxim built a craft that weighed 3.5 tons, with a 110-foot (34-meter) wingspan powered by two 360-horsepower (270-kW) steam engines driving two propellers. In 1894, his machine
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2592-466: The 18th and 19th centuries kites were used for scientific research. Around 400 BC in Greece , Archytas was reputed to have designed and built the first self-propelled flying device, shaped like a bird and propelled by a jet of what was probably steam, said to have flown some 200 m (660 ft). This machine may have been suspended during its flight. One of the earliest attempts with gliders
2673-603: The 1970s. Drowning in debt, in 1971 Lockheed (then the largest US defense contractor) asked the US government for a loan guarantee, to avoid insolvency. Lockheed argued that a government bailout was necessary due to the company's value for U.S. national security. On May 13, 1971, the Richard Nixon administration sent a bill titled "The Emergency Loan Guarantee Act" to Congress requesting a $ 250 million loan guarantee for Lockheed and its L-1011 Tristar airbus program. The measure
2754-461: The 1970s. In late 1975 and early 1976, a subcommittee of the U.S. Senate led by Senator Frank Church concluded that members of the Lockheed board had paid members of friendly governments to guarantee contracts for military aircraft. In 1976, it was publicly revealed that Lockheed had paid $ 22 million in bribes to foreign officials in the process of negotiating the sale of aircraft including
2835-549: The Constellation obsolete. However, the design proved underpowered. The company sought to purchase Convair in 1946, but the sale was blocked by the SEC . In 1943, Lockheed began, in secrecy, development of a new jet fighter at its Burbank facility. This fighter, the Lockheed P-80 Shooting Star , became the first American jet fighter to score a kill. It also recorded the first jet-to-jet aerial kill, downing
2916-799: The F-104 Starfighter, the so-called Deal of the Century. The scandal caused considerable political controversy in West Germany , the Netherlands , Italy, and Japan. In the US, the scandal led to passage of the Foreign Corrupt Practices Act , and nearly led to the ailing corporation's downfall (it was already struggling due to the poor sales of the L-1011 airliner). Haughton resigned his post as chairman. In
2997-655: The Harrier for the U.S. Marine Corps and the U.K. Royal Navy. Several propulsion methods were explored under ASTOVL and assigned to different contractors for research and development. These include the Shaft-Driven Lift Fan (SDLF) by Lockheed which had a forward lift fan powered by a shaft connected to the main engine's low-pressure spool and engaged by a clutch, the Lift-Plus-Lift/Cruise (LPLC) by Northrop (later Northrop Grumman ) which had
3078-612: The Lockheed Aircraft Company to Detroit Aircraft Corporation . In August 1929, Allan Loughead resigned. The Great Depression ruined the aircraft market, and Detroit Aircraft went bankrupt. A group of investors headed by brothers Robert and Courtland Gross, and Walter Varney , bought the company out of receivership in 1932. The syndicate bought the company for a mere $ 40,000 ($ 858,000 in 2023). Ironically, Allan Loughead himself had planned to bid for his own company, but had raised only $ 50,000 ($ 824,000), which he felt
3159-540: The Pacific. Military gliders were developed and used in several campaigns, but were limited by the high casualty rate encountered. The Focke-Achgelis Fa 330 Bachstelze (Wagtail) rotor kite of 1942 was notable for its use by German U-boats . Before and during the war, British and German designers worked on jet engines . The first jet aircraft to fly, in 1939, was the German Heinkel He 178 . In 1943,
3240-765: The Poseidon and Trident nuclear missiles. Lockheed developed the F-104 Starfighter in the late 1950s, the world's first Mach 2 fighter jet. In the early 1960s, the company introduced the C-141 Starlifter four-engine jet transport. During the 1960s, Lockheed began development for two large aircraft: the C-5 Galaxy military transport and the L-1011 TriStar wide-body civil airliner. Both projects encountered delays and cost overruns. The C-5
3321-664: The SDLF was eventually selected for full-scale development in 2001, with the production aircraft for operational service becoming the F-35B with the F135-PW-600 engine. NASA uses the abbreviation SSTOVL for Supersonic Short Take-Off / Vertical Landing, and as of 2012, the X-35B/F-35B are the only aircraft to conform with this combination within one flight. The experimental Mach 1.7 Yakovlev Yak-141 did not find an operational customer, but similar rotating rear nozzle technology
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3402-706: The U-2 (late 1950s), SR-71 Blackbird (1962) and F-117 Nighthawk stealth fighter (1978). The Skunk Works often created high-quality designs in a short time and sometimes with limited resources. In 1954, the Lockheed C-130 Hercules , a durable four-engined transport, flew for the first time. This type remains in production today. In 1956, Lockheed received a contract for the development of the Polaris Submarine Launched Ballistic Missile ( SLBM ); it would be followed by
3483-569: The United States and Canada in 1919. The so-called Golden Age of Aviation occurred between the two World Wars, during which updated interpretations of earlier breakthroughs. Innovations include Hugo Junkers ' all-metal air frames in 1915 leading to multi-engine aircraft of up to 60+ meter wingspan sizes by the early 1930s, adoption of the mostly air-cooled radial engine as a practical aircraft power plant alongside V-12 liquid-cooled aviation engines, and longer and longer flights – as with
3564-605: The company should be allowed to go into bankruptcy citing the recent decision to leave Penn Central railroad to that fate, and the fact that the airbus program at issue was commercial rather than military. Naval scholar Thomas Paul Stanton notes that the opposition to the bill held it was "the beginning of the socialization of the American aircraft and aerospace industry." Proponents responded by claiming "this socializing process had taken place many years before", and some witnesses before Congress discounted "the very notion of 'free enterprise'." Treasury Secretary Connally pointed to
3645-503: The entirety of American involvement in the war, from Pearl Harbor to Victory over Japan Day . It filled ground-attack, air-to-air, and even tactical bombing roles in all theaters of the war in which the United States operated. The P-38 was responsible for shooting down more Japanese aircraft than any other U.S. Army Air Forces type during the war; it is particularly famous for being the aircraft type that shot down Japanese Admiral Isoroku Yamamoto 's airplane. The Lockheed Vega factory
3726-707: The fall of the Soviet Union . Rockwell International built, and then abandoned, the Rockwell XFV-12 supersonic fighter which had an unusual wing which opened up like window blinds to create an ejector pump for vertical flight. It never generated enough lift to get off the ground despite developing 20,000 lbf of thrust. The French had a nominally Mach 2 Dassault Mirage IIIV fitted with no less than 8 lift engines that flew (and crashed), but did not have enough space for fuel or payload for combat missions. The German EWR VJ 101 used swiveling engines mounted on
3807-455: The faltering economy and worries about unemployment while testifying "the time has come within the United States when we have to look at things differently. Free enterprise is just not all that free." Questions arose whether letting Lockheed fail would be bad for the market due to decreased competition or good by screening out inefficient competitors and mismanagement. Lockheed's competitors, McDonnell Douglas and General Electric (collaborators on
3888-729: The first operational jet fighter, the Messerschmitt Me 262 , went into service with the German Luftwaffe . Later in the war the British Gloster Meteor entered service, but never saw action – top air speeds for that era went as high as 1,130 km/h (700 mph), with the early July 1944 unofficial record flight of the German Me 163B V18 rocket fighter prototype. In October 1947, the Bell X-1
3969-668: The fuselage. First flying vertically in 1963, it suffered a fatal crash in 1964. It was converted into the XV-4B Hummingbird for the U.S. Air Force as a testbed for separate, vertically mounted lift engines, similar to those used in the Yakovlev Yak-38 'Forger'. That plane flew and later crashed in 1969. The Ryan XV-5 Vertifan , which was also built for the U.S. Army at the same time as the Hummingbird, experimented with gas-driven lift fans. That plane used fans in
4050-559: The interaction between the wings and the surface. Some GEVs are able to fly higher out of ground effect (OGE) when required – these are classed as powered fixed-wing aircraft. A glider is a heavier-than-air craft whose free flight does not require an engine. A sailplane is a fixed-wing glider designed for soaring – gaining height using updrafts of air and to fly for long periods. Gliders are mainly used for recreation but have found use for purposes such as aerodynamics research, warfare and spacecraft recovery. Motor gliders are equipped with
4131-553: The late 1980s, leveraged buyout specialist Harold Simmons conducted a widely publicized but unsuccessful takeover attempt on the Lockheed Corporation, having gradually acquired almost 20 percent of its stock. Lockheed was attractive to Simmons because one of its primary investors was the California Public Employees' Retirement System (CalPERS), the pension fund of the state of California. At
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#17327646904304212-407: The loan. (Later, historian Stephen J. Whitfield viewed the passage of the loan guarantee as a support for the argument that America was shifting away from Lockean liberalism. ) Following a fierce debate, Vice President Spiro T. Agnew cast a tie-breaking vote in favor of the measure on August 2, 1971. President Nixon signed the bill into law on August 9, 1971 - which became colloquially known as
4293-480: The nose and each wing, covered by doors which resembled half garbage can lids when raised. However, it crashed twice, and proved to generate a disappointing amount of lift, and was difficult to transition to horizontal flight. Of dozens of VTOL and V/STOL designs tried from the 1950s to 1980s, only the subsonic Hawker Siddeley Harrier and Yak-38 Forger reached operational status, with the Forger being withdrawn after
4374-693: The pilot can strap into an upright seat within a deform-able structure. Landing is usually on one or two wheels which distinguishes these craft from hang gliders. Most are built by individual designers and hobbyists. Military gliders were used during World War II for carrying troops ( glider infantry ) and heavy equipment to combat zones. The gliders were towed into the air and most of the way to their target by transport planes, e.g. C-47 Dakota , or by one-time bombers that had been relegated to secondary activities, e.g. Short Stirling . The advantage over paratroopers were that heavy equipment could be landed and that troops were quickly assembled rather than dispersed over
4455-414: The pilot is suspended in a harness suspended from the air frame , and exercises control by shifting body weight in opposition to a control frame. Hang gliders are typically made of an aluminum alloy or composite -framed fabric wing. Pilots can soar for hours, gain thousands of meters of altitude in thermal updrafts, perform aerobatics, and glide cross-country for hundreds of kilometers. A paraglider
4536-410: The ramifications of the Lockheed loan guarantee soon resurfaced in late 1975 with discussions on possible aid to New York City during its fiscal crisis . Lockheed finished paying off the $ 1.4 billion loan in 1977, along with about $ 112.22 million in loan guarantee fees. The Lockheed bribery scandals were a series of illegal bribes and contributions made by Lockheed officials from the late 1950s to
4617-577: The takeover since he was also at the time pursuing control of Georgia Gulf . Merger talks between Lockheed and Martin Marietta began in March 1994, with the companies announcing their $ 10 billion planned merger on August 30, 1994. The headquarters for the combined companies would be at Martin Marietta headquarters in North Bethesda, Maryland . The deal was finalized on March 15, 1995, when
4698-465: The time, the New York Times said, "Much of Mr. Simmons's interest in Lockheed is believed to stem from its pension plan, which is over funded by more than $ 1.4 billion. Analysts said he might want to liquidate the plan and pay out the excess funds to shareholders, including himself." Citing the mismanagement by its chairman, Daniel M. Tellep , Simmons stated a wish to replace its board with
4779-500: The two companies' shareholders approved the merger. The segments of the two companies not retained by the new company formed the basis for L-3 Communications , a mid-size defense contractor in its own right. Lockheed Martin also later spun off the materials company Martin Marietta Materials . The company's executives received large bonuses directly from the government as a result of the merger. Norman R. Augustine who
4860-414: The use of thrust vectoring , which may also be used in conjunction with a runway " ski-jump ". There are 14 aircraft carriers that operate these STOVL aircraft: United States (9), United Kingdom (2), Italy (2), and Spain (1). Use of STOVL tends to allow aircraft to carry a larger payload compared to vertical take-off and landing (VTOL), while still only requiring a short runway. The most famous examples are
4941-510: The use of aircraft as weapons and observation platforms. The earliest known aerial victory with a synchronized machine gun -armed fighter aircraft occurred in 1915, flown by German Luftstreitkräfte Lieutenant Kurt Wintgens . Fighter aces appeared; the greatest (by number of air victories) was Manfred von Richthofen . Alcock and Brown crossed the Atlantic non-stop for the first time in 1919. The first commercial flights traveled between
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#17327646904305022-760: The wingtips with fuselage mounted lift engines, and the VJ 101C X1 reached supersonic flight (Mach 1.08) on 29 July 1964. The supersonic Hawker Siddeley P.1154 , which competed with the Mirage IIIV for use in NATO, was cancelled even as the aircraft were being built. In 1983, the Defense Advanced Research Projects Agency ( DARPA ) initiated the Advanced STOVL (ASTOVL) program to develop a supersonic STOVL fighter (SSF) to replace
5103-716: The world in 1937. Subsequent designs, the Lockheed Model 12 Electra Junior and the Lockheed Model 14 Super Electra expanded their market. The Lockheed Model 14 formed the basis for the Hudson bomber, which was supplied to both the British Royal Air Force and the United States military before and during World War II . Its primary role was submarine hunting. The Model 14 Super Electra were sold abroad, and more than 100 were license-built in Japan for use by
5184-460: The world. Some of the hundreds of versions found other purposes, like the AC-47 , a Vietnam War era gunship, which is still used in the Colombian Air Force . An airplane (aeroplane or plane) is a powered fixed-wing aircraft propelled by thrust from a jet engine or propeller . Planes come in many sizes, shapes, and wing configurations. Uses include recreation, transportation of goods and people, military, and research. A seaplane (hydroplane)
5265-463: Was an American aerospace manufacturer . Lockheed was founded in 1926 and merged in 1995 with Martin Marietta to form Lockheed Martin . Its founder, Allan Lockheed , had earlier founded the similarly named but otherwise-unrelated Loughead Aircraft Manufacturing Company , which was operational from 1912 to 1920. Allan Loughead and his brother Malcolm Loughead had operated an earlier aircraft company, Loughead Aircraft Manufacturing Company , which
5346-421: Was an early aircraft design that had the modern monoplane tractor configuration . It had movable tail surfaces controlling both yaw and pitch, a form of roll control supplied either by wing warping or by ailerons and controlled by its pilot with a joystick and rudder bar. It was an important predecessor of his later Bleriot XI Channel -crossing aircraft of the summer of 1909. World War I served initiated
5427-588: Was at the time CEO of Martin Marietta received an $ 8.2 million bonus. Both companies contributed important products to the new portfolio. Lockheed products included the Trident missile , P-3 Orion maritime patrol aircraft , U-2 and SR-71 reconnaissance airplanes , F-117 Nighthawk , F-16 Fighting Falcon , F-22 Raptor , C-130 Hercules , A-4AR Fightinghawk and the DSCS-3 satellite. Martin Marietta products included Titan rockets , Sandia National Laboratories (management contract acquired in 1993), Space Shuttle External Tank , Viking 1 and Viking 2 landers,
5508-492: Was built in any number (141 aircraft) was the Vega first built in 1927, best known for its several first- and record-setting flights by, among others, Amelia Earhart , Wiley Post , and George Hubert Wilkins . In the 1930s, Lockheed spent $ 139,400 ($ 2.29 million) to develop the Model 10 Electra , a small twin-engined transport. The company sold 40 in the first year of production. Amelia Earhart and her navigator, Fred Noonan , flew it in their failed attempt to circumnavigate
5589-477: Was built to vague initial requirements and suffered from structural weaknesses, which Lockheed was forced to correct at its own expense. The TriStar competed for the same market as the McDonnell Douglas DC-10 ; delays in Rolls-Royce engine development caused the TriStar to fall behind the DC-10. The C-5 and L-1011 projects, the canceled U.S. Army AH-56 Cheyenne helicopter program, and embroiled shipbuilding contracts caused Lockheed to lose large sums of money during
5670-441: Was by 11th-century monk Eilmer of Malmesbury , which failed. A 17th-century account states that 9th-century poet Abbas Ibn Firnas made a similar attempt, though no earlier sources record this event. In 1799, Sir George Cayley laid out the concept of the modern airplane as a fixed-wing machine with systems for lift, propulsion, and control. Cayley was building and flying models of fixed-wing aircraft as early as 1803, and built
5751-433: Was denied by Comptroller General Elmer B. Staats , and efforts were made by Senator William Proxmire to get Treasury Secretary John Connally to testify due to the suspicion that the loan guarantee was in jeopardy. The editorial board of The New York Times blasted the situation, citing it as another argument against the propriety of the loan guarantee and the precedent it set for other failing companies. The debate around
5832-400: Was developed to investigate alternative methods of recovering spacecraft. Although this application was abandoned, publicity inspired hobbyists to adapt the flexible-wing airfoil for hang gliders. Initial research into many types of fixed-wing craft, including flying wings and lifting bodies was also carried out using unpowered prototypes. A hang glider is a glider aircraft in which
5913-400: Was easily foreseen as the post-war modernization of civilian air travel. The Constellation's performance set new standards which transformed the civilian transportation market. Its signature tri-tail was the result of many initial customers not having hangars tall enough for a conventional tail. Lockheed produced a larger transport, the double-decked R6V Constitution , which was intended to make
5994-518: Was hotly debated in the US Senate. The chief antagonist was Senator William Proxmire (D-Wis), the nemesis of Lockheed and its chairman, Daniel J. Haughton. Some of the debate in Congress developed over what conditions should be attached to the bailout. Senator Alan Cranston demanded that the management be forced to step down, lest it set a precedent rewarding wasteful spending. Others argued that
6075-574: Was in commercial service for more than 50 years, from 1958 to 2010. The Boeing 747 was the world's largest passenger aircraft from 1970 until it was surpassed by the Airbus A380 in 2005. The most successful aircraft is the Douglas DC-3 and its military version, the C-47 , a medium sized twin engine passenger or transport aircraft that has been in service since 1936 and is still used throughout
6156-538: Was located next to Burbank's Union Airport which it had purchased in 1940. During the war, the entire area was camouflaged in case of enemy reconnaissance. The factory was hidden beneath a huge burlap tarpaulin painted to depict a peaceful semi-rural neighborhood, replete with rubber automobiles. Hundreds of fake trees, shrubs, buildings, and even fire hydrants were positioned to give a three-dimensional appearance. The trees and shrubs were created from chicken wire treated with an adhesive and covered with feathers to provide
6237-589: Was operational from 1912 to 1920. The company built and operated aircraft for paying passengers on sightseeing tours in California and had developed a prototype for the civil market, but folded in 1920 due to the flood of surplus aircraft deflating the market after World War I . Allan went into the real estate market while Malcolm had meanwhile formed a successful company marketing brake systems for automobiles. On December 13, 1926, Allan Loughead, John Northrop , Kenneth Kay and Fred Keeler secured funding to form
6318-550: Was tested with overhead rails to prevent it from rising. The test showed that it had enough lift to take off. The craft was uncontrollable, and Maxim abandoned work on it. The Wright brothers ' flights in 1903 with their Flyer I are recognized by the Fédération Aéronautique Internationale (FAI), the standard setting and record-keeping body for aeronautics , as "the first sustained and controlled heavier-than-air powered flight". By 1905,
6399-660: Was the first aircraft to exceed the speed of sound, flown by Chuck Yeager . In 1948–49, aircraft transported supplies during the Berlin Blockade . New aircraft types, such as the B-52 , were produced during the Cold War . The first jet airliner , the de Havilland Comet , was introduced in 1952, followed by the Soviet Tupolev Tu-104 in 1956. The Boeing 707 , the first widely successful commercial jet,
6480-582: Was too small a sum for a serious bid. In 1934, Robert E. Gross was named chairman of the new company, the Lockheed Aircraft Corporation, which was headquartered at what is now the airport in Burbank, California . His brother Courtlandt S. Gross was a co-founder and executive, succeeding Robert as chairman following his death in 1961. The company was named the Lockheed Corporation in 1977. The first successful construction that
6561-446: Was used as a message for a rescue mission. Ancient and medieval Chinese sources report kites used for measuring distances, testing the wind, lifting men, signaling, and communication for military operations. Kite stories were brought to Europe by Marco Polo towards the end of the 13th century, and kites were brought back by sailors from Japan and Malaysia in the 16th and 17th centuries. Although initially regarded as curiosities, by
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