The Pratt Whitney PW1000G is a highbypass geared turbofan engine family, currently selected as the exclusive engine for the Airbus A220, Mitsubishi SpaceJet, and Embraer's second generation EJets, and as an option on the Irkut MC21 and Airbus project was previously known as the Geared Turbofan (GTF), and originally the Advanced Technology Fan Integrator (ATFI).