A drone, also known as an unmanned aerial vehicle (UAV) or unmanned aircraft system (UAS), is an aircraft that operates without a human pilot onboard. It can be controlled remotely by a human operator or fly autonomously using embedded software and sensors, often guided by GPS
. Drones vary in size and type, including multi-rotor (like quadcopters), fixed-wing, single-rotor, and hybrid VTOL models, each designed for specific applications such as aerial photography, surveillance, agriculture, delivery, and military missions
. They are essentially flying robots powered by batteries or fuel, equipped with motors, propellers or wings, and flight controllers that manage navigation and stability
. Originally developed for military use—performing tasks too dangerous or dull for humans—drones now serve a wide range of civilian purposes including search and rescue, environmental monitoring, traffic control, filmmaking, and package delivery
. They combine robotics and aeronautics technologies and often carry cameras, sensors, and communication equipment to perform their tasks
. In summary, drones are remotely piloted or autonomous flying machines used across diverse fields, from military to commercial and recreational activities