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Message: <blockquote data-quote="sld" data-source="post: 116205" data-attributes="member: 3234">you wanted to know so here you go....The Mig-31 Foxhound is a substantially improved derivative of the Mig-25 Foxbat. The Mig-31 is an all weather, two seater interceptor with advanced digital avionics. The MiG-31 is a two-seat supersonic (Vmax=3,000 km/h) aircraft with a tapered moderate-swept wings, all-swept twin-fin tail unit and all-moving tailplane. The MiG-31 airframe is an all-metal monoplane with lateral air intakes. Provision is made for installation of two underwing fuel tanks with a total capacity of 5,000 liters. The most capable Russian air defense interceptor aircraft, the FOXHOUND has a multiple-target engagement capability and was the first Soviet fighter to have a true look-down, shoot-down capability. The N007 Zaslon radar was the first electronically scanned phased array radar to enter service in the world. It could scan 200 km forward and track 10 targets simultanieously. This radar could also track and engage target flying behind and below the aircraft. The Zaslon antenna is of the fixed type, instead of being mechanically directed the radar beam is moved electronically. This allows the full fuselage diameter to be used for the antenna, a considerable advantage since antenna diameter and effective operating range are directly related. Electronic steering of the radar beam is faster than can be performed mechanically, and it is also more accurate. All signal processing is digital.  The radar ensures simultaneous search and attack of several targets using long-range missiles and makes possible to interact within a group. The MiG-31 interceptor fighter can intercept air targets in VFR and IFR weather conditions, day and night and in continuous and discontinuous field of control and guidance commands (solo and in group), of regardless target defensive maneuvers and ECM.  The aircraft avionics enables the use of missiles with radar- and IR-homing heads. The FOXHOUND carries the long-range AA-9 air-to-air missiles, and can engage 4 different targets simultaneouly with the M-9.The MiG-31 aircraft weapons mix comprises four R-33, four R-60M and two R-40T missiles and a GSh-6-23 built-in gun. The airframe was extensively redesigned for supersonice flight at low altitude, with the welded nickel steel content reduced from the Mig-25's 80% to 49%, with 16% titanium, 33% aluminium alloy and 2% composites. The wings of the aircraft are high-mounted and swept-back with square tips and a negative slant. There are four underwing pylons. There are two turbofan engines in the fuselage. The aircraft is powered by two D-30F6 turbofans developing a takeoff thrust of 15,500 kgf each. The mixed-flow turbofan is fitted with an afterburner and fully-variable flapped jet nozzle. The new Soloviev D-30F6 engine was specified for the MiG-31 in order to improve range, the key performance parameter for which an improvement over the MiG-25 was demanded. There are rectangular and diagonal cut air intakes on sides of the fuselage. The exhausts extend beyond the tail plane. The fuselage is rectangular from the intakes to the exhausts and has a long, pointed nose. The aircraft has a bubble canopy. The tail fins are back-tapered with angular tips and canted outward. The flats are swept-back and tapered and mid- to low-mounted on the body. The first Mig-31 flew in 1975. By 1987 over 150 FOXHOUNDs were operationally deployed at several locations from the Arkhangelsk area in the northwestern USSR to the Soviet Far East. The FOXHOUND is dedicated to the homeland air defense mission. In 1992 the Chinese reached agreement with the Russian Federation to buy 24 MiG-31 Foxhound long-range inter</blockquote>

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