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S-duct
An S-duct (or '' serpentine inlet'') is a type of jet engine intake duct used in several types of trijet aircraft. In this configuration, the intake is in the upper rear center of the aircraft, above or below the stabilizer, while the exhaust and engine is at the rear of the aircraft. The S-duct is located in the tail, or empennage, of the aircraft. The shape of the S-duct is distinctive and easily recognized, and was used in several aircraft, beginning in 1962 with the Hawker Siddeley Trident. The Dassault Falcon 8X and Dassault Falcon 900 business jets are the only aircraft in production that use the S-duct design. Benefits and drawbacks The S-duct was invented as a solution for positioning the central engine on trijets. The S-duct is easier to service than alternative trijet designs. Most trijet designs opted for the S-duct layout. Only the McDonnell Douglas DC-10 and MD-11 trijets' designers chose not to use the S-duct and go with a "straight-through" layout. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed L-1011 TriStar
The Lockheed L-1011 TriStar (pronounced "El-ten-eleven") is an American medium-to-long-range, wide-body trijet airliner built by the Lockheed Corporation. It was the third wide-body airliner to enter commercial operations, after the Boeing 747 and the McDonnell Douglas DC-10. The airliner has a seating capacity of up to 400 passengers and a range of over . Its trijet configuration has three Rolls-Royce RB211 engines with one engine under each wing, along with a third engine center-mounted with an S-duct air inlet embedded in the tail and the upper fuselage. The aircraft has an autoland capability, an automated descent control system, and available lower deck Galley (kitchen), galley and lounge facilities. The L-1011 TriStar was produced in two fuselage lengths. The original L-1011-1 first flew in November 1970 and entered service with Eastern Air Lines in 1972. The shortened, longer range L-1011-500 first flew in 1978 and entered service with British Airways a year later. The o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S-duct NASA
An S-duct (or '' serpentine inlet'') is a type of jet engine intake duct used in several types of trijet aircraft. In this configuration, the intake is in the upper rear center of the aircraft, above or below the stabilizer, while the exhaust and engine is at the rear of the aircraft. The S-duct is located in the tail, or empennage, of the aircraft. The shape of the S-duct is distinctive and easily recognized, and was used in several aircraft, beginning in 1962 with the Hawker Siddeley Trident. The Dassault Falcon 8X and Dassault Falcon 900 business jets are the only aircraft in production that use the S-duct design. Benefits and drawbacks The S-duct was invented as a solution for positioning the central engine on trijets. The S-duct is easier to service than alternative trijet designs. Most trijet designs opted for the S-duct layout. Only the McDonnell Douglas DC-10 and MD-11 trijets' designers chose not to use the S-duct and go with a "straight-through" layout. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northrop Grumman B-2 Spirit
The Northrop B-2 Spirit, also known as the Stealth Bomber, is an American Heavy bomber, heavy strategic bomber, featuring low-observable stealth aircraft, stealth technology designed to penetrator (aircraft), penetrate dense anti-aircraft warfare, anti-aircraft defenses. A Subsonic aircraft, subsonic flying wing with a crew of two, the plane was designed by Northrop Corporation, Northrop (later Northrop Grumman) as the prime contractor, with Boeing, Hughes Aircraft Company, Hughes, and Vought as principal subcontractors, and was produced from 1988 to 2000. The bomber can drop conventional weapon, conventional and thermonuclear weapons, such as up to eighty Mark 82 bomb, Mk 82 Joint Direct Attack Munition, JDAM Global Positioning System, GPS-guided bombs, or sixteen B83 nuclear bombs. The B-2 is the only acknowledged in-service aircraft that can carry large air-to-surface missile, air-to-surface Standoff missile, standoff weapons in a stealth configuration. Development began ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mikoyan Project 1
Russian Aircraft Corporation "MiG" (), commonly known as Mikoyan and MiG, is a Russian aerospace and defence company headquartered in Begovoy District, Moscow. Mikoyan was the successor to the Soviet Mikoyan and Gurevich Design Bureau (Микоя́н и Гуре́вич, МиГ; OKB-155 design office prefix ''MiG'') founded in 1939 by aircraft designers Artem Mikoyan and Mikhail Gurevich. Mikoyan were notable for their fighter and interceptor aircraft which became a staple of the Soviet Air Force and Russian Air Forces, nations within the Soviet sphere of influence, and other nations such as India and many Arab states. Mikoyan aircraft were frequently used in aerial confrontations with American and allied forces during and since the Cold War, and have become commonly featured aircraft in popular culture. Mikoyan aircraft were the most produced jet fighter family. In 2006, Mikoyan became a division of the United Aircraft Corporation in a merger with Ilyushin, Irkut, Su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed YF-22
The Lockheed/Boeing/General Dynamics YF-22 is an American single-seat, twinjet, twin-engine, stealth aircraft, stealth fighter aircraft, fighter technology demonstrator prototype designed for the United States Air Force (USAF). The design team, with Lockheed as the prime contractor, was a finalist in the USAF's Advanced Tactical Fighter (ATF) competition, and two prototypes were built for the demonstration/validation phase. The YF-22 team won the contest against the Northrop YF-23, YF-23 team for full-scale development and the design was developed into the Lockheed Martin F-22 Raptor, Lockheed Martin F-22.Lockheed Corporation, Lockheed merged with Martin Marietta in 1995 to form Lockheed Martin. The YF-22 has a similar aerodynamic layout and configuration as the F-22, but with notable differences in the overall shaping such as the position and design of the cockpit, tail fins and wings, and in internal structural layout. In the 1980s, the USAF began looking for a replacement ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IAI Lavi
The IAI Lavi (, "lion") is a single-engined fourth-generation jet fighter, fourth-generation multirole jet fighter developed in Israel, by Israel Aircraft Industries (IAI), during the 1980s. The decision to develop the Lavi was controversial, both with the Israeli public, due to the enormous associated costs, and particularly with the U.S. government due to competition with American jets on the export market. By 1984 Israel, with a population of 4 million, had amongst the world's highest military expenditure as a proportion of GDP, at approximately 18.9%, which was considered unsustainable. These issues contributed to the ultimate cancellation of the aircraft, by the Israeli government, during the flight-test phase of development in August 1987. The Israeli cabinet's late-stage cancellation of the program, by a 12–11 vote, continued to arouse controversy and bitterness in Israel for decades, with Moshe Arens, the main political figure behind the Lavi project, stating in 2013 tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epic Victory
The Epic Victory was the second experimental jet designed by Epic Aircraft, a company that was based in Bend, Oregon. Epic Aircraft declared bankruptcy in 2009. Its assets were acquired by Aviation Industry Corporation of China and ''LT Builders Group''; which were in the process of restarting production of the Victory. Development The Victory is a single-engine very light jet that was intended to be powered by a single Pratt & Whitney Canada PW600. Epic used the Williams FJ33 engine for testing but planned to switch to the PW600 for final production. The aircraft seats 4 to 5, including the pilots, in a 2+2 or a 2+1+2 configuration. The aircraft took Epic six and a half months to design from concept to a flying prototype, with the first flight on 6 July 2007 from Roberts Field in Redmond, Oregon. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing 727
The Boeing 727 is an American Narrow-body aircraft, narrow-body airliner that was developed and produced by Boeing Commercial Airplanes. After the heavier Boeing 707, 707 quad-jet was introduced in 1958, Boeing addressed the demand for shorter flight lengths from smaller airports. On December 5, 1960, the 727 was launched with 40 orders each from United Airlines and Eastern Air Lines. The first 727-100 rolled out on November 27, 1962, first flew on February 9, 1963, and entered service with Eastern on February 1, 1964. The only trijet aircraft to be produced by Boeing, the 727 is powered by three Pratt & Whitney JT8D Turbofan, low-bypass turbofans below a T-tail, one on each side of the rear fuselage and a center one fed through an S-duct below the tail. It shares its six-abreast upper fuselage cross-section and cockpit with the 707 that was also later used on the Boeing 737, 737. The 727-100 typically carries 106 passengers in two classes over , or 129 in a single class. La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rockwell B-1 Lancer
The Rockwell B-1 Lancer is a supersonic variable-sweep wing, heavy bomber used by the United States Air Force. It has been nicknamed the "Bone" (from "B-One"). , it is one of the United States Air Force's three strategic bombers, along with the B-2 Spirit and the B-52 Stratofortress. It is a heavy bomber with up to a 75,000-pound (34,000 kg) of payload. The B-1 was first envisioned in the 1960s as a bomber that would combine the Mach 2 speed of the B-58 Hustler with the range and payload of the B-52, ultimately replacing both. After a long series of studies, North American Rockwell (subsequently renamed Rockwell International, B-1 division later acquired by Boeing) won the design contest for what emerged as the B-1A. Prototypes of this version could fly Mach 2.2 at high altitude and long distances and at Mach 0.85 at very low altitudes. The program was canceled in 1977 due to its high cost, the introduction of the AGM-86 cruise missile that flew the same basic speed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed Martin F-35 Lightning II
The Lockheed Martin F-35 Lightning II is an American family of single-seat, single-engine, supersonic Stealth aircraft, stealth strike fighters. A multirole combat aircraft designed for both Air superiority fighter, air superiority and attack aircraft, strike missions, it also has electronic warfare and intelligence, surveillance, and reconnaissance capabilities. Lockheed Martin is the prime F-35 contractor with principal partners Northrop Grumman and BAE Systems. The aircraft has three main variants: the CTOL, conventional takeoff and landing (CTOL) F-35A, the STOVL, short take-off and vertical-landing (STOVL) F-35B, and the carrier-based, carrier variant (CV) Catapult Assisted Take-Off But Arrested Recovery, catapult-assisted take-off but arrested recovery (CATOBAR) F-35C. The aircraft descends from the Lockheed Martin X-35, which in 2001 beat the Boeing X-32 to win the Joint Strike Fighter program, Joint Strike Fighter (JSF) program intended to replace the General Dynami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed Martin F-22 Raptor
The Lockheed Martin/Boeing F-22 Raptor is an American Twinjet, twin-engine, Jet engine, jet-powered, Night fighter, all-weather, supersonic Stealth aircraft, stealth fighter aircraft. As a product of the United States Air Force's Advanced Tactical Fighter (ATF) program, the aircraft was designed as an air superiority fighter, but also incorporates attack aircraft, ground attack, electronic-warfare aircraft, electronic warfare, and signals intelligence capabilities. The prime contractor, Lockheed Martin Aeronautics, Lockheed Martin, built most of the F-22 airframe and weapons systems and conducted final assembly, while program partner Boeing Defense, Space & Security, Boeing provided the wings, aft fuselage, avionics integration, and training systems. First flown in 1997, the F-22 descended from the Lockheed YF-22 and was variously designated F-22 and F/A-22 before it formally entered service in December 2005 as the F-22A. Although the U.S. Air Force (USAF) had originally plan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurofighter Typhoon
The Eurofighter Typhoon is a European multinational twin-engine, supersonic, canard delta wing, multirole fighter. The Typhoon was designed originally as an air-superiority fighter and is manufactured by a consortium of Airbus, BAE Systems and Leonardo that conducts the majority of the project through a joint holding company, Eurofighter Jagdflugzeug GmbH. The NATO Eurofighter and Tornado Management Agency, representing the UK, Germany, Italy and Spain, manages the project and is the prime customer. The aircraft's development effectively began in 1983 with the Future European Fighter Aircraft programme, a multinational collaboration among the UK, Germany, France, Italy and Spain. Previously, Germany, Italy and the UK had jointly developed and deployed the Panavia Tornado combat aircraft and desired to collaborate on a new project, with additional participating EU nations. Disagreements over design authority and operational requirements however, led France to leave the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
