727-200 National AirlinesNational Airlines Boeing 727 airplane model. The Boeing 727 is an American narrow body airliner produced by Boeing Commercial Airplanes. After the heavy 707 quad jet was introduced in 1958, Boeing addressed the demand for shorter flight lengths from smaller airports. With estimates suggesting a potential market for 300 or more aircraft, the first Model 727, a production airplane with United Airlines insignia, made its maiden flight on February 9,