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AIM-120 stops guiding since 2.5.6.57949


mrkline

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In some situations, AMRAAMs go pitbull, begin to pull lead on their target, then suddenly stop all fin deflection, flying a 1G arc into space.

 

I can produce this reliably by firing an AIM-120 from a Hornet in STT and turning cold. Expected behavior (for a lost track) is for the missile to fly towards the last known intercept (extracting from the target's last known position and velocity), then turn on its seeker and attempt to intercept whatever target it finds.

 

This bug isn't a case of the target being outside the sensor field of view - you can see it begin to maneuver more aggressively when it goes pitbull, then suddenly stop, even though it has the energy and angles to consummate an intercept. It's also unrelated to previous discussions about AIM-120 notch or chaff resistance - the target is in a hot aspect when the missile goes ballistic, and it doesn't home in on a chaff bundle.

 

Track & Tacview attached.

hornet-amraam-double-miss.zip

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