Pratt & Whitney, an RTX (NYSE: RTX) business, has secured a $2.8 billion undefinitised contract action (UCA) to produce Lot 18 of F135 engines, the powerplant for all three variants of the F-35 Lightning II 5th generation fighter.
The agreement covers production of engines for the conventional take-off and landing (CTOL), carrier variant (CV), and short take-off and vertical landing (STOVL) models. It also includes spare engines, spare modules, tooling, engineering, production support, and programme management for both U.S. and international customers.
“The combat-proven F135 engine delivers the power, safety, reliability, and low-observability to ensure operators can accomplish their most critical missions,” said Christopher K. Johnson, vice president of the F135 programme at Pratt & Whitney. “The F135 is ultimately an investment in mission assurance, providing the warfighters of today and tomorrow the technological edge to fight and win. This contract will enable our team to continue providing this critical capability to help the U.S. and its allies maintain air superiority for decades to come.”
The F135 programme currently supports more than 67,000 domestic jobs, engages with 240 U.S. suppliers, and contributed over $9.1 billion to the U.S. economy in 2024. To date, more than 1,300 F135 production engines have been delivered to a global enterprise involving 20 allied nations.
SOURCE AND IMAGE: PRATT & WHITNEY

