What is indicated by a live seeker on a training missile?

A live seeker on a training missile indicates that the missile is equipped with a functioning guidance system. In a training context, this means that while the missile may not be armed with a lethal payload, the seeker system is operational and is designed to simulate the missile’s guidance capabilities. This allows for realistic training scenarios where operators can practice how to engage and control the missile effectively.

In contrast, the other options do not accurately describe the implications of a live seeker. A live seeker does not imply that the missile carries a live explosive payload; rather, most training missiles are equipped to ensure safety during exercises by using inert payloads. Additionally, while the missile may be designated for training use, the term "live seeker" specifically refers to the operational state of the guidance system, not the general purpose of the missile. It also does not mean the missile is inert; the term "inert" refers to the absence of any functional explosive components, which is separate from the functionality of the seeker.