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Posts Tagged ‘evading AAM’

Evading air-to-air missile

Posted by picard578 on August 17, 2013

Missile evasion is a very important part of modern air combat, yet many people believe it is impossible. But this is false, for several reasons. First reason is that missile cannot turn tighter than the aircraft: in order to pull as tight turn as a fighter aircraft, missile has to pull amount of g that is amount of g’s aircraft can pull multiplied by factor of difference in speed squared. For example, Typhoon can pull 9 g at 360 kts, and IRIS-T can pull 60 g at Mach 3, or 1.984 knots. What this means is that IRIS-T will have 4,5 times as wide turn diameter. If target is pulling 9 g at Mach 0,9, then IRIS-T will still have 1,7 times as wide turn diameter, and if target is pulling sustained 5 g turn at 360 kts, IRIS-T will have 2,5 times as wide turn diameter.

Evasion is made easier in some situations by the fact that missile always attempts to lead the target. Thus if target changes heading, it will be hard pressed to correct. This is the case with BVR missiles, where target fighter aircraft can turn so that missile faces its side and only enter a turn once missile is close. Probability of BVR missile hitting is made worse by the fact Read the rest of this entry »

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