The GE90-115B engine has a fan diameter of 128 in (325 cm). This is comparable to the fuselage widths of the Boeing 737 at 148 in (376 cm) and the Airbus A320 at 156 in (396 cm). By comparison, the fuselage of the Boeing 777, for which the engine was designed, measures 244 in (620 cm) in diameter.