JohnWick
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Actually the mechanism is totally differentJust quietly read and learn rather than spamming this thread.
Heat seeking missiles are the SAME as infrared tracking ones. Can u tell me how a heat seeking missile "seeks" heat? It uses IR(hint...it stands for INFRARED) sensors. U know why? Bcuz "heat" is emitted in the infrared spectrum.
As for ur expertise about smoke...regardless of smoke or no smoke...heat can still be emitted...like I said it is just infrared light. So even if u don't see a heat trail with ur naked eye(bcuz humans don't perceive infrared)...a heat seeking missile will still detect it. In order to minimize the heat signature there are various strategies...like mixing cool air to the exhaust flow in case of B2 or heat ablating tiles on YF23. In short even without smoke..."heat" will be there(unless some methods to minimize that heat are used).
In BVRs.The obove narrated story is now absolute.....
As quoting Wikipedia.
AMRAAM uses two-stage guidance when fired at long range. The aircraft passes data to the missile just before launch, giving it information about the location of the target aircraft from the launch point and its direction and speed. The missile uses this information to fly on an interception course to the target using its built-in inertial navigation system(INS). This information is generally obtained using the launching aircraft's radar, although it could come from an infra-red search and tracksystem, from a data link from another fighter aircraft, or from an AWACS aircraft.
After launch, if the firing aircraft or surrogate continues to track the target, periodic updates—such as changes in the target's direction and speed—are sent from the launch aircraft to the missile, allowing the missile to adjust its course, via actuation of the rear fins, so that it is able to close to a self-homing distance where it will be close enough to "catch" the target aircraft in the basket (the missile's radar field of view in which it will be able to lock onto the target aircraft, unassisted by the launch aircraft).
Thats why AIM-120s type missiles can easily distinguish between aircraft and
Flares....