Video de The Sukhoi Su-27 (ะกั-27 in the Cyrillic alphabet) (NATO reporting name 'Flanker') is originally a Soviet fighter aircraft designed by the Sukhoi Design Bureau (SDB) It was intended as a direct competitor for the new generation of American fighters (which emerged as the F-14 Tomcat, F-15 Eagle, F-16 Fighting Falcon, and F/A-18 Hornet), with exceptional range, heavy armament, and very high agility The Su-27 most often flies air superiority missions, but is able to perform almost all combat operations Some believe the Su-27 to have been born from a competition between Sukhoi and Mikoyan-Gurevich, given the Su-27's and MiG-29 'Fulcrum's similar shape This is not so The Su-27 was designed as long-range air superiority fighter and interceptor, whereas the MiG-29 was designed to fill the role of short-range tactical support fighter
The Su-33 'Flanker-D' Fleet Defense Interceptor was developed from the Su-27 design for use on aircraft carriers Main differences include a tail hook and canards Given the purpose of this interceptor, one would say that its closest counterpart is the American F-14 Tomcat, whereas the MiG-29K 'Fulcrum-D' would be analogous to the F/A-18 Hornet
The Su-30 is a two-seat, dual-role, fighter for all-weather, air-to-air and deep interdiction missions
Further versions include the Su-34 'Fullback' strike variant and the Su-35 'Flanker-E' improved air defense fighterThe Su-27's basic design is aerodynamically similar to the MiG-29, but it is substantially larger It is a very large aircraft, and to mimimize its weight its structure has a high percentage of titanium (about 30, more than any of its contemporaries) No composite materials were used The swept wing blends into the fuselage at the leading edge extensions and is essentially a delta, although the tips are cropped for wingtip missile rails or ECM pods The Su-27 is not a true delta, however, because it retains conventional tailplanes, with two vertical tailfins outboard of the engines, supplemented by two fold-down ventral fins for additional lateral stability
The Su-27's Lyulka AL-31F turbofan engines are widely spaced, both for safety reasons and to ensure uninterrupted airflow through the intakes The space between the engines also provides additional lift, reducing wing loading Movable guide vanes in the intakes allow Mach 2+ speeds, and help to maintain engine airflow at high alpha A mesh screen over each intake prevents debris from being drawn into the engines during take-offIn 1969 the Soviet Union learned of the United States Air Force's selection of McDonnell Douglas to produce the Fighter Experimental design (which was to become the F-15 Eagle) In response to that upcoming threat, the Soviets instituted the PFI (perspektivnyi frontovoy istrebitel, Advanced Frontline Fighter) program for an aircraft that could match the new American fighter on its own terms
When the specification proved too challenging and costly for a single aircraft in the number needed, the PFI specification was split into two the LPFI (Lyogkyi PFI, Lightweight PFI) and the TPFI (Tyazholyi PFI, Heavy PFI), just as the F-15 program spawned the Lightweight Fighter (LWF) program that produced the F-16 and YF-17 Cobra Sukhoi OKB was assigned the TPFI program
The Su-27, despite its impressive air combat maneuvering (dogfighting) capacity, has seen little action since it first entered service The only notable exception is during the Eritrean-Ethiopian War (1998-2000) For the latter half of the conflict, Su-27As were used extensively by Ethiopia in CAP (Combat Air Patrol) missions and as escorts for Mig-21 and Mig-23 bombers In the course of their service, Ethiopian Su-27s shot down two Eritrean MiG-29s; some of the Flankers were flown by Russian & Ukrainian trainers (some of whom were accused of being mercenaries), while some were flown by their Ethiopian pupils
One such victory was achieved by Ethiopian female pilot Aster Tolossa, becoming the first African woman to achieve a dogfight victory
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