Planes are vehicles designed for air travel, commonly known as aircraft. They are equipped with wings and engines that allow them to lift off the ground and fly through the sky. Planes come in various sizes and types, including commercial airliners, cargo planes, and private jets, each serving different purposes. The basic principle of flight involves generating lift, which is achieved by the shape of the wings. As air flows over and under the wings, it creates a difference in pressure, allowing the plane to rise. Pilots operate planes using controls in the cockpit, ensuring safe navigation and landing at airports like Heathrow or JFK.