Key Points and Summary - The F-35 program is under intense pressure due to severe problems with its critical Block 4 modernization. -The new TR-3 hardware, the foundation for the upgrade, is late, ...

The F-35 program originally aimed to have Block 4’s 66 capabilities — which later swelled by more than a dozen — completed by ...

The U.S. Dept. of Defense made a $2.88-billion award to Pratt & Whitney in a modification to a prior contract for manufacturing 141 more F135 engines. Those engines are the power source for the F-35 ...

These engines will go into the 18th lot of F-35 fighters being built by Lockheed Martin, largely at its facility in Forth Worth, Texas. The Navy awarded Lockheed a contract in December 2024 worth up ...

PARIS—A key milestone for the Pentagon’s program to upgrade the F-35 engine has been pushed back a year, raising questions about the overall timeline of the effort. The engine upgrade will reach ...

Pratt & Whitney’s new award is focused on procuring components and materials for F135 propulsion systems, and follows last month’s $2.8-billion contract for dozens of new ...

President Trump described the F-55 as a substantial upgrade over the F-35, together with the ongoing upgrades to F-35 and F-22. U.S. President Donald Trump is currently on a tour in the Middle East, ...

WASHINGTON (Reuters) - The Pentagon said on Wednesday that no additional cracks have been found on F-35 fighter engines during inspections begun after the February 19 incident that halted flights of ...

The F-35 program is delaying some of its planned Block 4 upgrades as it focuses on delivering capabilities as early as 2031. (A1C Eli Rose/Air Force) The F-35 Joint Strike Fighter program is scaling ...