The jetliner was designed to bridge the gap between Boeing's other wide body airplanes, the twin-engined 767 and quad-engined 747, and to replace aging DC-10s and L-1011 trijets. The 777 is the world's largest twinjet and the most-built wide-body airliner. The Boeing 777, commonly referred to as the Triple Seven, is an American long-range wide-body airliner developed and manufactured by Boeing Commercial Airplanes. 1,721 as of October 2023 based on deliveries