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Fourth-generation Jet Fighter
The fourth-generation fighter is a Jet fighter generations, class of jet fighters in service from around 1980 to the present, and represents design concepts of the 1970s. Fourth-generation designs are heavily influenced by lessons learned from the previous generation of combat aircraft. Jet fighter generations#Third generation, Third-generation fighters were often designed primarily as Interceptor aircraft, interceptors, being built around speed and Air-to-air missile, air-to-air missiles. While exceptionally fast in a straight line, many third-generation fighters severely lacked in maneuverability, as doctrine held that traditional Dogfight, dogfighting would be impossible at supersonic speeds. In practice, air-to-air missiles of the time, despite being responsible for the vast majority of air-to-air victories, were relatively unreliable, and combat would quickly become subsonic and close-range. This would leave third-generation fighters vulnerable and ill-equipped, renewing an i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sukhoi Su-27
The Sukhoi Su-27 (; NATO reporting name: Flanker) is a Soviet Union, Soviet-origin twinjet, twin-engine supersonic Supermaneuverability, supermaneuverable fighter aircraft designed by Sukhoi. It was intended as a direct competitor for the large US fourth-generation jet fighters such as the Grumman F-14 Tomcat and McDonnell Douglas F-15 Eagle, with range, heavy aircraft ordnance, sophisticated avionics and high maneuverability. The Su-27 was designed for air superiority missions, and subsequent variants are able to perform almost all aerial warfare operations. It was designed with the Mikoyan MiG-29 as its complement. The Su-27 entered service with the Soviet Air Forces in 1985. The primary role was long range air defence against American Strategic Air Command, SAC Rockwell B-1 Lancer, Rockwell B-1B Lancer and Boeing B-52 Stratofortress#B-52G, Boeing B-52G and H Stratofortress bombers, protecting the Soviet coast from aircraft carriers and flying long range fighter escort for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Analog Computer
An analog computer or analogue computer is a type of computation machine (computer) that uses physical phenomena such as Electrical network, electrical, Mechanics, mechanical, or Hydraulics, hydraulic quantities behaving according to the mathematical principles in question (''analog signals'') to Scientific modelling, model the problem being solved. In contrast, digital computers represent varying quantities symbolically and by discrete values of both time and amplitude (digital signals). Analog computers can have a very wide range of complexity. Slide rules and nomograms are the simplest, while naval gunfire control computers and large hybrid digital/analog computers were among the most complicated. Complex mechanisms for process control and protective relays used analog computation to perform control and protective functions. Analog computers were widely used in scientific and industrial applications even after the advent of digital computers, because at the time they were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shenyang J-16
The Shenyang J-16 (; NATO reporting name: Flanker-N) also known as Qianlong is a Chinese all-weather 4.5 generation, tandem-seat, twin-engine, multirole strike fighterBronk, page 38 built by Shenyang Aircraft Corporation and operated by the People's Liberation Army Air Force (PLAAF). It is developed from the Shenyang J-11, the licensed production variant of the Russian Sukhoi Su-27. Design and development With the development of military aircraft during the turn of the century, the PLAAF found its JH-7 fighters becoming increasingly obsolete. In the 1990s, China purchased Sukhoi Su-27 and Sukhoi Su-30MKK air superiority fighters from Russia, including those license-produced in China as the Shenyang J-11A.Bronk, page 37 The J-11A was further developed into the J-11B single seat and BS twin seat variant with indigenous technology. The J-16 is a strike fighter derived from the J-11BS model. The J-16 is equipped with an active electronically scanned array (AESA) radar and is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shenyang J-15
The Shenyang J-15 (wikt:歼, Chinese: 歼-15), also known as ''Flying Shark'' (; NATO reporting name: Flanker-X2, Flanker-K) is a Chinese night fighter, all-weather, twinjet, twin-engine, carrier-based aircraft, carrier-based Fourth-generation fighter#4.5 generation, 4.5 generation multirole combat aircraft, multirole fighter aircraft developed by the Shenyang Aircraft Corporation (SAC) and the Shenyang Aircraft Design Institute, 601 Institute, specifically for the People's Liberation Army Naval Air Force (PLANAF) to serve on People's Liberation Army Navy's (PLAN) Chinese aircraft carrier programme, aircraft carriers. The aircraft entered active service with the PLAN in 2013. An improved variant, named J-15T, incorporating CATOBAR launch capability, modern Fifth-generation fighter, fifth-generation avionics, entered active service in the South China Sea in October 2024. The J-15 is to be replaced by the naval variant of the fifth-generation fighter Shenyang J-35. Development In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sukhoi Su-35
The Sukhoi Su-35 (-35; NATO reporting name: Flanker-E/M, occasionally nicknamed "Super Flanker") is the designation for two improved derivatives of the Sukhoi Su-27, Su-27 air-defence fighter. They are single-seat, twinjet, twin-engine, supermaneuverability, supermaneuverable, 4.5 generation air superiority fighters, designed by the Sukhoi Design Bureau and built by Sukhoi. The type was originally developed by the Soviet Union from the Su-27 and was known as the Su-27M. It incorporated Canard (aeronautics), canards and a multi-function radar giving it multi-role capabilities. The first prototype made its maiden flight in June 1988. Following the dissolution of the Soviet Union Sukhoi re-designated it as the Su-35 to attract export orders. Fourteen aircraft were produced and used for tests and demonstrations; one example had Thrust vectoring, thrust-vectoring engines and was in turn redesignated the Sukhoi Su-37, Su-37. A sole Su-35UB two-seat trainer was also built in the late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sukhoi Su-34
The Sukhoi Su-34 (; NATO reporting name: Fullback) is a Soviet-origin Russian twin-engine, twin-seat, all-weather supersonic medium-range fighter-bomber/ strike aircraft. It first flew in 1990, intended for the Soviet Air Forces, and it entered service in 2014 with the Russian Air Force. Based on the Sukhoi Su-27 Flanker air superiority fighter, the Su-34 has a wider, armoured cockpit with side-by-side seating for its two pilots. The Su-34 was designed primarily for tactical deployment against ground and naval targets (tactical bombing/ attack/ interdiction roles, including against small and mobile targets) on solo and group missions in daytime and at night, under favourable and adverse weather conditions and in a hostile environment with counter-fire and electronic warfare (EW) counter-measures deployed, as well as for aerial reconnaissance. The Su-34 is planned to eventually replace the Su-24 tactical bomber and the Tu-22M long-range bomber. Development Beginnings (1980s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sukhoi Su-30
The Sukhoi Su-30 (; NATO reporting name: Flanker-C/G/H) is a twin-engine, two-seat supermaneuverable fighter aircraft developed in the Soviet Union in the 1980s by Russia's Sukhoi Aviation Corporation. It is a multirole fighter for all-weather, air-to-air interdiction missions. The Russian Aerospace Forces (VKS) were reported to have 130 Su-30SMs in operation as of 2024. The Su-30 started as an internal development project in the Sukhoi Su-27 family by Sukhoi. From the Su-27UB two-seat trainer, the Su-27PU heavy interceptor was developed. The design plan was revamped and the Su-27PU was renamed to Su-30 by the Russian Defense Ministry in 1996. Of the Flanker family, the Su-27, Su-30, Su-33, Su-34 and Su-35 have been ordered into limited or serial production by the Russian Defense Ministry. Later, different export requirements split the Su-30 into two distinct version branches, manufactured by competing organizations: KnAAPO and the Irkut Corporation, both of which come un ... [...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] |
Fifth-generation Jet Fighter
A fifth-generation fighter is a Jet fighter generations, jet fighter aircraft classification which includes major technologies developed during the first part of the 21st century. these are the most advanced fighters in operation. The characteristics of a fifth-generation fighter are not universally agreed upon, and not every fifth-generation type necessarily has them all; however, they typically include stealth technology, stealth, low-probability-of-intercept radar (LPIR), agile airframes with supercruise performance, advanced avionics features, and highly integrated computer systems capable of network-centric warfare, networking with other elements within the battlespace for situational awareness and C3 (Command and control, command, control and communications) capabilities. the combat-ready fifth-generation fighters are the Lockheed Martin F-22 Raptor, which entered service with the United States Air Force (USAF) in December 2005; the Lockheed Martin F-35 Lightning II, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar-absorbent Material
In materials science, radiation-absorbent material (RAM) is a material which has been specially designed and shaped to absorb incident RF radiation (also known as non-ionising radiation), as effectively as possible, from as many incident directions as possible. The more effective the RAM, the lower the resulting level of reflected RF radiation. Many measurements in electromagnetic compatibility (EMC) and antenna radiation patterns require that spurious signals arising from the test setup, including reflections, are negligible to avoid the risk of causing measurement errors and ambiguities. Introduction One of the most effective types of RAM comprises arrays of pyramid-shaped pieces, each of which is constructed from a suitably lossy material. To work effectively, all internal surfaces of the anechoic chamber must be entirely covered with RAM. Sections of RAM may be temporarily removed to install equipment but they must be replaced before performing any tests. To be suffic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stealth Technology
Stealth technology, also termed low observable technology (LO technology), is a sub-discipline of military tactics and passive and active electronic countermeasures. The term covers a range of military technology, methods used to make personnel, Stealth aircraft, aircraft, Stealth ship, ships, submarines, missiles, satellites, and Stealth ground vehicle, ground vehicles less visible (ideally invisible) to radar, Thermographic camera, infrared, sonar and other detection methods. It corresponds to military camouflage for these parts of the electromagnetic spectrum (i.e., multi-spectral camouflage). Development of modern stealth technologies in the United States began in 1958, where earlier attempts to prevent radar tracking of its Lockheed U-2, U-2 spy planes during the Cold War by the Soviet Union had been unsuccessful. Designers turned to developing a specific shape for planes that tended to reduce detection by redirecting electromagnetic radiation waves from radars. Radiation-a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a system that uses radio waves to determine the distance ('' ranging''), direction ( azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain. The term ''RADAR'' was coined in 1940 by the United States Navy as an acronym for "radio detection and ranging". The term ''radar'' has since entered English and other languages as an anacronym, a common noun, losing all capitalization. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwave domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
