Key Takeaways RTX won a $670.2M modification contract to supply F135 propulsion system spares for the F-35 program.Work will be largely executed in East Hartford, CT, with project completion expected by December 2028.RTX shares rose 29.6% in the past year, outpacing the industry's 12.5% growth.RTX Corporation (RTX) recently announced that its Pratt & Whitney business segment has clinched a $670.2 million modification contract involving the F135 propulsion system. The award was offered by the Naval Air Syste ...