Why No Engine Other Than One Can Power Airbus' Most Fuel-Efficient Widebody

Every Airbus A350 ever built flies with the same engine. Over more than a decade of production and with more than 60 airline customers, no operator has had a choice. Simple Flying noted the contrast directly: while other widebody aircraft such as the Boeing 777 and 787 Dreamliner offer customers a choice between General Electric and Rolls-Royce engines, the A350 family has never had an alternative. Delta Air Lines' SEC filing describes the single engine choice as a departure from previous Airbus aircraft.