Pratt & Whitney PW1000G

The Pratt & Whitney PW1000G family, also marketed as the geared turbofan or GTF, is a family of high-bypass geared turbofan engines producing 15,000 to 33,000 pounds-force of thrust. A gearbox between the fan and the low-pressure core lets each section turn at its best speed, which Pratt & Whitney says gives 16 percent lower fuel use and 75 percent less noise than the previous generation of engines. The program launched in 2008, and the PW1500G built for the Airbus A220 became the first certified version in 2013. The family also powers the Airbus A320neo family and the Embraer E-Jet E2, though early problems with the PW1100G variant, including contaminated powdered metal, grounded aircraft and hurt its standing in the market.