When it comes to widebody aircraft, Boeing’s upcoming flagship, the 777X, has a significant advantage over Airbus’ widebody flagship, the A350. However, with narrowbody aircraft, the European planemaker has the advantage with itsAirbus A320 family of narrowbody aircraft being significantly wider than the Boeing 737. Separately, the A320neo family also features significantly widerCFM International LEAP-1A engines compared with the MAX family’s smaller LEAP-1B engines.