The main function of plane is to enable transportation through the air. Plane, also known as an aeroplane, is a fixed-wing aircraft that makes use of aerodynamic forces to attain and maintain flight within the earth's atmosphere. Designed for flight, planes rely on engines, typically powered by fuel or electricity, to create thrust. This thrust pushes the plane forward, while the shape of the aircraft generates lift by interacting with the airflow. It allows people and cargo to travel over long distances at a much faster pace compared to ground or water-based transportation modes. Overall, the primary function of planes is to provide air travel, connecting regions and cities globally and facilitating travel, business, and exploration worldwide.