They capture battle damage information in real time and convey it back to the soldiers on ground. They are able to provide continuous operations for up to 7 or 8 hours of staying in the air. Functional Classification of UAVs There are six functional categories of UAVs and these machines are designed to achieve a particular objective.
The purposes that they fulfill include target acquisition, battlefield intelligence, attack (also known as unmanned combat air vehicle), cargo and logistics, research and development, and commercial UAVs. UAVs are also classified according to their size and these are known as micro, miniature, midsize, and large military-specific or combat.