Air Intercept Operations Course (AIOC) Practice Test

The trigger relies on detecting a rapid increase in infrared energy in the seeker’s field of view within a short time window. This fast, sharp rise indicates a flare or decoy entering the scene, which the infrared counter-countermeasure logic treats as a disruptive event that the system should respond to promptly. Because flares produce a quick spike rather than a slow, gradual change, a sharp rise within a defined time is the best cue for engaging protection or countermeasures. A slow, gradual rise over minutes wouldn’t meet the rate-of-rise criteria and could be caused by benign scene changes, so it isn’t used to trigger the response. A decrease in energy isn’t indicative of a flare or disruptive event, and a constant energy level provides no dynamic signal to act on, making those options unsuitable triggers for the IRCCM.