Unmanned aircraft, also known as drones, are aerial vehicles that are controlled remotely or autonomously without a human pilot on board. They have a wide range of applications, including military surveillance, reconnaissance, search and rescue, agriculture, photography and videography, and package delivery. Researchers in this area focus on developing and improving the technology of unmanned aircraft, including their control systems, sensors, communication systems, and autonomy. They also address issues related to safety, regulations, privacy, and ethical considerations surrounding the use of drones in various industries. Overall, unmanned aircraft research aims to advance the capabilities and versatility of these systems for a variety of civilian and military applications.