On Friday, November 28, 2025, the U.S. Department of Defense released information on the signing of two contracts with Lockheed Martin and Pratt & Whitney under the F-35 JSF (Joint Strike Fighter) multirole aircraft program.
F-35A Lightning II / Photo: Lockheed Martin
The first contract, valued at 1,606,190,091 USD, was awarded by the Naval Air Systems Command (NAVAIR) to Pratt & Whitney Military Engines of East Hartford, Connecticut (a division of RTX). The contract concerns the F135-PW-100/400/600 family of turbofan engines.
The agreement covers sustainment support, program management, financial and administrative activities, propulsion integration, replenishment of spare parts, engineering support, material and configuration management, engine management support, software sustainment, safety management, updates to shared technical data, support equipment management, field support and depot-level repairs for all propulsion systems at F-35 production sites and operational locations, as well as training for F-35 propulsion systems. The contract provides global sustainment services for F135 engines at both unit and depot levels, including spare-parts replenishment.
Work will be performed in East Hartford, Connecticut (40%); Oklahoma City, Oklahoma (21%); Indianapolis, Indiana (12%); West Palm Beach, Florida (6%); Windsor Locks, Connecticut (6%); Brekstad, Norway (4%); Leeuwarden, the Netherlands (3%); Iwakuni, Japan (3%); Williamtown, Australia (2%); Cameri, Italy (1%); RAF Marham, United Kingdom (1%); and Fort Worth, Texas (1%). Completion is expected by November 2026.
Initial obligated funds come from the FY2026 defense budget: 56,480,819 USD from the U.S. Air Force; 30,665,093 USD from the U.S. Marine Corps; 11,829,825 USD from the U.S. Navy; and 51,017,310 USD from F-35 JSF partner nations and the Foreign Military Sales (FMS) program. Of these funds, 98,975,737 USD will expire at the end of the current fiscal year (September 30, 2026).
The second contract, valued at 178,360,242 USD, was also awarded by NAVAIR, this time to Lockheed Martin of Fort Worth, Texas (the announcement states the contract was signed on November 26).
This is a modification to a previous contract, expanding the procurement of materials, parts, and economically advantageous quantities of components for four F-35 Lightning II aircraft from Lot 20, twenty-two aircraft from Lot 21, and twenty-two aircraft from Lot 22 (48 aircraft in total) for F-35 JSF partner nations and Foreign Military Sales (FMS) customers.
Work will be performed in Fort Worth, Texas (59%); El Segundo, California (14%); Warton, United Kingdom (9%); Cameri, Italy (4%); Orlando, Florida (4%); Nashua, New Hampshire (3%); Baltimore, Maryland (3%); San Diego, California (2%); and at various locations outside the continental United States (2%). Completion is expected by December 2030. Funding comes from the FMS program (36,360,242 USD) and from F-35 JSF cooperative program partners (142 million USD).
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