Which capability is essential for the MQ-9 to successfully track moving targets?

The capability essential for the MQ-9 to successfully track moving targets is real-time data transmission. This functionality allows the MQ-9 to send and receive information immediately, which is crucial for monitoring the movement of targets on the ground. By transmitting data in real-time, operators can quickly analyze the changing positions of targets and make timely decisions regarding surveillance, targeting, or potential engagement.

While advanced navigation systems, high speed of flight, and multiple weapon systems contribute to the overall effectiveness of the MQ-9, they do not directly facilitate the process of tracking moving targets in the same crucial way that real-time data transmission does. Advanced navigation aids in precise positioning, and high speed can be advantageous for reaching the target area swiftly, but without the ability to continuously communicate and update information, effective tracking would be significantly impaired. Similarly, while having multiple weapon systems enhances the drone's strike capability, it does not enhance the tracking ability itself. Hence, real-time data transmission stands out as the key capability needed for effective tracking of moving targets.