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Pentagon Awards $3.81 Billion to RTX for F-35 Lot 18–19 F135 Engines

The award secures engine output to sustain F-35 deliveries.

Overview

  • Naval Air Systems Command issued a contract modification that definitizes Lot 18 F135 engine production and authorizes Lot 19 procurement with completion expected by March 2028.
  • The award draws on FY2024–FY2025 procurement accounts, including about $1.46 billion for foreign sales, and about $430.8 million expires at the end of FY-26.
  • Work will run across U.S. sites led by East Hartford, Connecticut, with tasks in Indiana, Washington, Maine, California, Michigan, Oregon, Georgia, Virginia, and New Jersey.
  • The contract covers engines for the Air Force, Navy, Marine Corps, partner nations, and foreign military sales customers to support new aircraft and spare inventories that shape fleet readiness.
  • RTX reports more than 1,300 F135 engines in service with over one million flight hours and says the multi-lot awards total $6.6 billion including full-rate engines, spares, and engineering support.