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Airbus sold the A320 well to low-cost startups and offering a choice of engines could make them more attractive to airlines and lessors than the single-sourced 737, but CFM engines are extremely reliable.
The NEO (New Engine Option) is available for the A320 Family’s three largest versions: the A319neo, A320neo and A321neo. There is a choice of two advanced turbofan engines: the Pratt & Whitney GTF™; and the LEAP-1A from CFM International. The NEO versions also feature Airbus’ large, fuel-saving wingtip devices known as Sharklets™.
Airbus planned to achieve these fuel savings using smarter aerodynamics and new engines. The engines use for the A320neos are CFM International’s LEAP-A1 and Pratt & Whitney’s PW1000G. The older aircraft had the designation CEO (Current Engine Option) added to differentiate the new from the old.
The A320neo brings minimum change with maximum benefit through the availability of two advanced engine choices – Pratt & Whitney’s PurePower PW1100G-JM geared turbofan, and CFM International’s LEAP-1A, both of which provide outstanding operational, economic, and environmental performance.
The A320neo family ( neo being Greek for "new", as well as an acronym for "new engine option") is based on the enhanced variant of the previous generation A319, A320, and A321, which was then retrospectively renamed the A320ceo family ( ceo acronym for "current engine option").
The A321neo is the longest-fuselage member of Airbus’ best-selling, single-aisle A320 Family, comfortably seating 180 to 220 passengers in a typical two-class interior layout, and as many as 244 in a higher-density arrangement.
Incorporating Sharklets, new fuel-efficient engines and latest cabin innovations, the key benefits of the A320neo compared to A320ceo are: 20% fuel burn and CO emissions advantage. 5% lower airframe maintenance costs.
