United States, Nov. 28 -- RTX Corp., Pratt & Whitney Military Engines, East Hartford, Connecticut, is awarded a not-to-exceed $1,606,190,091 cost, cost-plus-fixed-fee, cost-plus-incentive-fee, and fixed-price-incentive-fee undefinitized contract for recurring sustainment support, program management, financial and administrative activities, propulsion integration, replenishment spare part buys, engineering support, material management, configuration management, product management support, software sustainment, security management, Joint Technical Data updates, support equipment management, depot level maintenance and repair for all fielded propulsion systems at the F-35 production sites and operational locations, as well as training for prop...