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Shenyang WZ-9 Divine Eagle
The WZ-9 Divine Eagle () is a type of Chinese UAVs developed by Shenyang Aircraft Corporation (SAC), featuring a twin-boom configuration with a frontal horizontal stabilizer. Divine Eagle Divine Eagle (Shen-Diao or Shendiao, 神雕) is a little-known jet-powered Chinese UAV under development reportedly since 2012. It was possibly in service as of 2018, with its existence first revealed in the Chinese military aircraft development genealogy map (中国军用飞机发展族谱图) as a high altitude long endurance (HALE) counter stealth UAV (高空远程反隐身无人机). It was confirmed by Chinese official sources when the autobiography of aircraft designer academician Li Ming (李明) was published in 2012, in which it was revealed that the Divine Eagle was designed by the 601st Institute (more commonly known as Shenyang Aircraft Design Institute) of SYAC, originally as a proof of concept aircraft for the development of counter stealth UAV. A graphic from a Chinese publication ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China
China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after India, representing 17.4% of the world population. China spans the equivalent of five time zones and Borders of China, borders fourteen countries by land across an area of nearly , making it the list of countries and dependencies by area, third-largest country by land area. The country is divided into 33 Province-level divisions of China, province-level divisions: 22 provinces of China, provinces, 5 autonomous regions of China, autonomous regions, 4 direct-administered municipalities of China, municipalities, and 2 semi-autonomous special administrative regions. Beijing is the country's capital, while Shanghai is List of cities in China by population, its most populous city by urban area and largest financial center. Considered one of six ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shenyang Aircraft Corporation
Shenyang Aircraft Corporation (SAC) is a Chinese aircraft manufacturer in Shenyang, Liaoning and a subsidiary of AVIC. Founded in 1951 as the classified 112 Factory, it is the oldest aircraft manufacturer in the People's Republic of China. The company mainly focuses on designing and manufacturing civilian and military aircraft and related components including jet engines, as well as UAVs such as SYAC UAV. Aircraft produced by SAC include J-5, JJ-1, J-8, J-11, J-15, J-16, and J-35. Facilities * Shenyang Airframe Plant * Shenyang Aircraft Design Institute Products Fighters * J-2, Chinese variant of the Mikoyan-Gurevich MiG-15. * Shenyang J-5, Chinese variant of the Mikoyan-Gurevich MiG-17. * Shenyang J-6, Chinese variant of the Mikoyan-Gurevich MiG-19. * Chengdu J-7, Chinese variant of the Mikoyan-Gurevich MiG-21. Production was moved to Chengdu in the 1970s. * Shenyang J-8, Indigenously developed 3rd generation fighter aircraft. NATO reporting name Finback. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shenyang Aircraft Design Institute
Shenyang Aircraft Design Institute (; or 601 Institute) is a Chinese aircraft design institute of the Shenyang Aircraft Corporation, specializing in the design of military aircraft. ''pennantplc.co.uk''. Retrieved 29 August 2021 Products * Shenyang J-5 * * |
Proof Of Concept
A proof of concept (POC or PoC), also known as proof of principle, is an inchoate realization of a certain idea or method in order to demonstrate its feasibility or viability. A proof of concept is usually small and may or may not be complete, but aims to demonstrate in principle that the concept has practical potential without needing to fully develop it. A proof of value (PoV) is sometimes used along proof of concept, and differs by focusing more on demonstrating the potential customer use case and value, and is usually less in-depth than a proof of concept. Usage history The term has been in use since 1967. In a 1969 hearing of the Committee on Science and Astronautics, Subcommittee on Advanced Research and Technology, ''proof of concept'' was defined as following: One definition of the term "proof of concept" was by Bruce Carsten in the context of a "proof-of-concept prototype" in his magazine column "Carsten's Corner" (1989): The column also provided definitions fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shenyang J-11
The Shenyang J-11 ( Chinese: 歼-11; NATO reporting name: Flanker-B+/Flanker-L), also known as Yinglong ( zh, s=应龙, t=應龍, p=yìnglóng, l=responsive dragon). is a 4th generation twin-engine jet fighter of the People's Republic of China derived from the Soviet-designed Sukhoi Su-27SK. It is manufactured by the Shenyang Aircraft Corporation (SAC). The aircraft is operated by the People's Liberation Army Air Force (PLAAF) and the People's Liberation Army Naval Air Force (PLANAF). Development Proposed J-11 Based on experience from the Vietnam War, the PLAAF issued a requirement in 1969 for a STOL light fighter to replace the Shenyang J-6 and Nanchang Q-5. The proposal from the Shenyang Aircraft Design Institute and Shenyang Aircraft Factory was designated "J-11"; it resembled a French Dassault Mirage F1 and was powered by a British Rolls-Royce Spey 512 engine. The project was abandoned as no suitable engine could be procured, and the competing Nanchang J-12 was f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twin Boom
A twin-boom aircraft has two longitudinal auxiliary spars, or “auxiliary booms” , that may contain ancillary components such as fuel tanks and/or provide a supporting structure for other items. Typically, twin tailbooms support the tail surfaces, although on some types such as the Rutan Model 72 Grizzly the booms run forward of the wing. The twin-boom configuration is distinct from twin-fuselage designs in that it retains a central fuselage. Design The twin-boom configuration is distinct from the twin fuselage type in having a separate, short fuselage housing the pilot and payload. It has been adopted to resolve various design problems with the conventional empennage for aircraft in different roles. Engine mounting For a single engine with a propeller in the pusher configuration or a jet engine, a conventional tail requires the propeller or exhaust to be moved far aft, requiring either a very long driveshaft or jet pipe and thus reducing propulsive efficiency. The t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twin Tail
A twin tail is a type of vertical stabilizer arrangement found on the empennage of some aircraft. Two vertical stabilizers—often smaller on their own than a single conventional tail would be—are mounted at the outside of the aircraft's horizontal stabilizer. This arrangement is also known as an H-tail,Schiff, Barry: ''Flying'', page 15. Golden Press, New York, 1971. Library of Congress 78-103424 as it resembles a capital "H" when viewed from the rear. The twin tail was used on a wide variety of World War II multi-engine designs that saw mass production, especially on the American B-24 Liberator and B-25 Mitchell bombers, the British Avro Lancaster and Handley Page Halifax heavy bombers, and the Soviet Union's Petlyakov Pe-2 attack bomber. It can be easily confused for the similarly named twin-boom (or "double tail") arrangement, which has two separate tail-booms from the same fuselage rather than a single tail with twin stabilizers (a singular "twin tail" vs. two identic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wing Configuration
The wing configuration or planform of a fixed-wing aircraft (including both glider (aircraft), gliders and powered aeroplanes) is its arrangement of lifting and related surfaces. Aircraft designs are often classified by their wing configuration. For example, the Supermarine Spitfire is a conventional low wing cantilever monoplane of straight elliptical planform with moderate aspect ratio and slight dihedral. Many variations have been tried. Sometimes the distinction between them is blurred, for example the wings of many modern combat aircraft may be described either as cropped compound deltas with (forwards or backwards) swept trailing edge, or as sharply tapered swept wings with large leading edge root extensions (or LERX). Some are therefore duplicated here under more than one heading. This is particularly so for variable geometry and combined (closed) wing types. Most of the configurations described here have flown (if only very briefly) on full-size aircraft. A few theoret ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Electronically Scanned Array
An active electronically scanned array (AESA) is a type of phased array antenna, which is a computer-controlled antenna array in which the beam of radio waves can be electronically steered to point in different directions without moving the antenna. In the AESA, each antenna element is connected to a small solid-state transmit/receive module (TRM) under the control of a computer, which performs the functions of a transmitter and/or receiver for the antenna. This contrasts with a passive electronically scanned array (PESA), in which all the antenna elements are connected to a single transmitter and/or receiver through phase shifters under the control of the computer. AESA's main use is in radar, and these are known as active phased-array radar (APAR). The AESA is a more advanced, sophisticated, second-generation of the original PESA phased-array technology. PESAs can only emit a single beam of radio waves at a single frequency at a time. The PESA must utilize a Butler matri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mach Number
The Mach number (M or Ma), often only Mach, (; ) is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a boundary to the local speed of sound. It is named after the Austrian physicist and philosopher Ernst Mach. \mathrm = \frac, where: * is the local Mach number, * is the local flow velocity with respect to the boundaries (either internal, such as an object immersed in the flow, or external, like a channel), and * is the speed of sound in the medium, which in air varies with the square root of the thermodynamic temperature. By definition, at Mach1, the local flow velocity is equal to the speed of sound. At Mach0.65, is 65% of the speed of sound (subsonic), and, at Mach1.35, is 35% faster than the speed of sound (supersonic). The local speed of sound, and hence the Mach number, depends on the temperature of the surrounding gas. The Mach number is primarily used to determine the approximation with which a flow can be treated as an i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
T-tail
A T-tail is an empennage wikt:configuration, configuration in which the tailplane of an aircraft is mounted to the top of the vertical stabilizer, fin. The arrangement looks like the capital letter T, hence the name. The T-tail differs from the standard configuration in which the tailplane is mounted to the fuselage at the base of the fin. Advantages T-tails were common in early jet aircraft. Designers were worried that an engine failure would otherwise damage the horizontal tail. The T-tail is very common on aircraft with engines mounted in nacelles on a Wing_configuration#Number_and_position_of_main_planes, high-winged aircraft or on aircraft with the engines mounted on the rear of the fuselage, as it keeps the tail clear of the jet exhaust. Rear-mounting the engines keeps the wings clean and improves short-field performance. This was necessary in early jet aircraft with less powerful engines. T-tail aircraft can have better short-field performance, such as on the Bri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tractor Configuration
In aviation, a tractor configuration is a propeller-driven fixed-wing aircraft with its engine mounted with the propeller in front, so that the aircraft is "pulled" through the air. This is the usual configuration; the pusher configuration places the airscrew behind, and "pushes" the aircraft forward. Through common usage, the word "propeller" has come to mean any airscrew, whether it pulls or pushes the aircraft. In the early years of powered aviation both tractor and pusher designs were common. However, by the midpoint of the First World War, interest in pushers declined and the tractor configuration dominated. Today, propeller-driven aircraft are assumed to be tractors unless stated otherwise. Origins The first successful airplanes to have a "tractor" configuration were the 1907 Santos-Dumont Demoiselle and Blériot VII. The first biplane airplane to have a "tractor" configuration was the Goupy No.2 (first flight on 11 March 1909) designed by Mario Calderara and f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
