Radio-controlled aircraft are model airplanes or helicopters that are operated remotely using a handheld transmitter. These aircraft are equipped with a receiver that picks up signals from the transmitter, allowing the pilot to control their movements, such as altitude, direction, and speed. They come in various sizes and designs, from small toy models to larger, more complex versions used for hobby flying or competitions. These aircraft can be powered by electric motors, gas engines, or even gliders that rely on thermal currents. Enthusiasts often participate in clubs or events, where they can share their passion for flying and learn more about aerodynamics and model aviation. Safety guidelines are important to ensure responsible flying and to protect both the aircraft and bystanders.