What does “target lock” mean in missile guidance?

“Target lock” refers to the ability of a missile guidance system to maintain a continuous track of a designated target. This means that once a target has been identified, the system uses various sensors and tracking methods to follow the target's movements accurately. Achieving “target lock” is critical for missile accuracy, as it ensures that the missile can make course corrections in flight to strike the target effectively. Continuous tracking makes it possible for the missile to adjust to any changes in the target's position, thereby increasing the likelihood of successful engagement.

In the context of missile guidance, the other options do not accurately describe the state of “target lock.” Identifying a target without tracking it does not signify a lock, and a manual override of the system indicates control adjustments rather than a maintained track. Delaying a missile launch does not define a lock on the target but rather pertains to launch protocols and conditions.