With such a passenger plane, his appearance is very ordinary, and there is no novelty that makes people shine at the moment. But he is Boeing's first twin-engine wide-body airliner and has visited the World Trade Center. He is a Boeing 767, an ordinary but extraordinary airliner.Boeing 767-200At the beginning of developmentIn 1970, Boeing 747 became the first wide-body airliner. After that, three wide-body jets smaller than the 747 appeared, such as DC-10 and L-1011.L-1011 issued by SanBut the good times didn't last long. The fledgling Airbus launched A300, a twin-engine wide-body passenger plane.Airbus A300At that time, it was the only wide-body airliner with only two engines, so it had great potential. Therefore, Boeing launched the Boeing 7X7 project in 1972, which was developed together with the Boeing 7N7 project at that time. Later, these two projects evolved into Boeing 767 and Boeing 757 respectively.Boeing 767The path of developmentIn February, 1978, Boeing 7X7 got the name of 767 model and planned three variants: a 767-100 with 190 seats, a 767-200 with 210 seats, and a three-engine 767MR // LR version with 200 seats. Later, however, Boeing 767MR // LR changed its name to 777, and changed it to twin engines. Later, there was no order for Boeing 767-100, because its passenger capacity was very close to Boeing 757.Boeing 767-200Boeing 767 adopts a brand-new structure, and it is the first time that a two-person wide-body aircraft is used in Boeing passenger aircraft. During the design process, Boeing 767 tries to keep more commonality with Boeing 757 developed in the same period, and the cockpit design of both is basically the same.Boeing 767 cockpitBoeing 767 is the narrowest wide-body aircraft, its fuselage width is 5.03 meters, and its internal diameter is only 4.7 meters, so its comfort is not as good as Airbus A300' s 5.64 meters. However, the cargo hold has a small volume, which can only accommodate LD2 containers commonly used by narrow-body aircraft,