Group 1 - Frontier Airlines has selected Pratt & Whitney GTF™ engines to power 91 Airbus A321neo aircraft, increasing its total commitment to 235 GTF-powered aircraft [1][2] - The first of the new aircraft is scheduled for delivery in Q4 2026, and Pratt & Whitney will provide long-term engine maintenance through an EngineWise® Comprehensive service agreement [1][3] - Frontier Airlines operates the largest and youngest A320neo family fleet in the U.S., emphasizing its commitment to fuel efficiency and environmental sustainability [2][4] Group 2 - The GTF Advantage engine, which offers higher take-off thrust, better fuel efficiency, and longer time on wing, will be the production standard for Frontier Airlines' A321neo aircraft deliveries in the coming years [3] - Frontier Airlines aims to enhance its customer-centric brand transformation while maintaining affordable prices and exceptional travel experiences [3][4] - Pratt & Whitney has a long history in aircraft engine design and service, supporting over 90,000 in-service engines globally [5] Group 3 - RTX, the parent company of Pratt & Whitney, is the world's largest aerospace and defense company, with over 185,000 employees and 2024 sales exceeding $80 billion [6] - RTX focuses on advancing aviation and integrated defense systems, addressing critical challenges for global customers [6]