Quadcopter
Quadcopter is a small remote-controlled aircraft like a helicopter, with four blades that go around on top, used especially to film or photograph things from the air. A quadcopter is a type of drone. Also quadcopter is an unmanned aerial vehicle (UAV) or drone with four rotors, each with a motor and propeller. A quadcopter can be manually controlled or can be autonomous. It's also called quadrotor helicopter or quadrotor. It belongs to a more general class of aerial vehicles called multicopter or multirotor.
Small quadcopters are easy to build because of low cost, low inertial force and simple flight control system. Quadcopters provide stable flight performance, making them ideal for surveillance and aerial photography. Other application areas include delivery, land surveys, crop assessment, weather broadcasting, and more. Quadcopters exist in many sizes, from palm-sized ones to those that can carry passengers or heavy cargo.
Civilian use of quadcopters is subject to regulations, which are not mature in many countries. However, quadcopters are an important part of future transportation called Advanced Air Mobility (AAM).
Chen, R. (2020). The different types of quadcopter drones today for Industrial and Hobby use.
quadcopter(2024). Dictionary Cambridge. Retrieved from: https://dictionary.cambridge.org/dictionary/english/quadcopter