climb out to 80k feet and then burn to mach 5, active radar was initiated between 3-5 miles giving you about 4 seconds of reaction time give or take the target altitude. But who knows how they will model it in DCS with how poorly the amraam is modeled I am not going to hold my breath. I really just see it used as missile boat, launch all 4 and pray they hit. But maybe we will get an actual ocean map to accompany better carrier combat.