CMWS automatically dispenses flare decoys to counter IR guided missiles in which mode?

The correct answer is "AUTO" because the CMWS (Common Missile Warning System) is designed to operate in automated mode when it detects an imminent infrared (IR) threat such as a guided missile. In AUTO mode, the system uses its sensors to monitor the environment continuously and, upon detecting the specific signature of an incoming IR missile, automatically dispenses flare decoys without requiring human intervention. This rapid response is crucial for the protection of the aircraft, allowing it to react to threats in real-time and enhancing its chances of evading an attack.

In contrast, the other modes do not provide the same level of immediacy. For instance, MANUAL requires operator input to activate the dispensing of flares, which can introduce delays that could be detrimental in a combat scenario. SEMI-AUTO usually involves a combination of sensor input and operator engagement, which can also slow down the response time. DEFENSIVE might refer to a broad strategy or a posture rather than a specific operational mode for decoy deployment. Thus, AUTO mode is specifically tailored for quick and effective countermeasures against IR guided missile threats.