The Boeing 767, a widebody jet, was introduced at around the same time as the 757, its narrowbody sister, in the early 1980s. With the 707 aging, Boeing decided to offer a midsize plane to fit in between the 727/737/757 and the 747. The aircraft has a fuselage width of 15 ft 6 in (472,44 cm) that splits the difference between the aircraft in half. The 767 was approved for U.S. CAT IIIb operation in March 1984. This revision permitted operations with minimums as low as RVR 300. It was the first aircraft certificated for CAT IIIb by the U.S.[1]
The 767 offers a twin aisle configuration of 2+3+2 in economy with the most common business configuration of 2+2+2. It is possible in some charter configurations to squeeze an extra seat for a 2+4+2 configuration, however the seats are very narrow and this is not common. The 767 has a seat-to-aisle ratio in economy class of 3.5 seats per aisle, making for quicker food service and quicker exit of the plane than many other jetliners, which typically have between four and six seats per aisle in economy class.