Aircraft are vehicles designed for air travel, capable of flight through the atmosphere. They come in various forms, including helicopters, gliders, and fixed-wing planes. Each type serves different purposes, from transporting passengers to conducting military operations. Among the most common types of aircraft are commercial passenger jets, which are used by airlines to carry travelers across the globe. These jets are engineered for efficiency and safety, featuring advanced technology to ensure a smooth flying experience. Notable examples include the Boeing 747 and Airbus A380, which can accommodate hundreds of passengers at once.