The Boeing 720 is a four-engine narrow-body short- to medium-range passenger jet airliner. Developed by Boeing in the late 1950s from the Boeing 707 the 720 has a shorter fuselage and less range. The 720 first flew in November 1959 and the model entered service with launch customer United Airlines in July 1960. Though only 154 were built the 720 was still profitable due to the minimal research and development costs attributed to its being a slightly modified version of the 707-120.
Made by Boeing Commercial Airplanes.
It is the successor of the Boeing 707 .