Which term describes aircraft that are built for utility purposes?

The term that describes aircraft built specifically for utility purposes is "Utility." These aircraft are designed to perform a variety of tasks that may include transport of personnel and cargo, aerial surveillance, and other functions that leverage their versatile design. Utility aircraft prioritize functionality and adaptability over specialization in a single task, making them crucial assets for numerous missions in both military and civilian operations.

This classification highlights the primary focus of such aircraft on practicality and operational utility, which distinguishes them from other types, such as multi-purpose aircraft that may have a broader range of capabilities but aren't confined specifically to utility roles. Cargo aircraft are tailored primarily for freight transport, while trainer aircraft are specifically intended for pilot training.