Hawaiian Airlines has selected Pratt & Whitney 1000G geared turbofan engines to power its new fleet of Airbus A321neo aircraft.

The carrier finalized an order for 16 A321neos plus nine options in March, an order that will require up to 50 engines.

The aircraft, which are scheduled for delivery between 2017 and 2020, will be used on long-haul flights between Hawaii and the US West Coast.

Pratt & Whitney will also provide offwing engine maintenance via its PureSolution fleet management program.

CFM International LEAP-1A engines are also an option on A320neo family aircraft. Pratt has gained a significant lead over CFM on A321neo engine sales.

“We like the A321neo a lot,” Pratt president David Hess told reporters Thursday at the company’s media day in West Palm Beach, Fla. “One of the advantages the GTF has over competitor engines is that, given the architecture, we’re able to run cooler than the other engines. So on longer missions [to be typically flown with A321neos] it gives us a thrust advantage and a maintenance cost advantage.”