A UAV, short for Unmanned Aerial Vehicle, is an aircraft that operates without a pilot on board. It can be controlled remotely or follow pre-programmed flight plans autonomously.

UAVs come in various types, each tailored for specific applications and purposes. Here are some common examples:
- Fixed-wing UAVs: These UAVs resemble traditional airplanes with fixed wings. They excel at covering long distances and staying airborne for extended periods. Fixed-wing UAVs are widely used in tasks such as aerial mapping, surveillance, and cargo delivery.
- Multirotor UAVs: Multirotor UAVs, including quadcopters and hexacopters, feature multiple vertically oriented rotors. Their agility allows them to hover in place and execute nimble maneuvers. Multirotor UAVs are popular for applications like aerial photography, videography, and recreational flying.
- VTOL (Vertical Takeoff and Landing) UAVs: VTOL UAVs combine elements of fixed-wing and multirotor designs. They can vertically take off and land like helicopters and then transition into efficient forward flight like fixed-wing aircraft. VTOL UAVs find utility in versatile operations like mapping, surveillance, and military missions.
- Hybrid UAVs: Hybrid UAVs integrate features from different UAV types, often combining fixed-wing and multirotor capabilities. These hybrids strike a balance between endurance and maneuverability, making them suitable for diverse tasks such as aerial inspections and environmental monitoring.
- Nano UAVs: Nano UAVs are compact and lightweight drones typically weighing less than 250 grams. They are easily portable and commonly employed for indoor surveillance, search and rescue operations, and monitoring in confined spaces.
These examples represent only a fraction of the UAV types available, with many specialized variants catering to specific industries and tasks. UAV technology continues to advance, offering a wide array of options to fulfill various applications and requirements.