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, ...

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 ...

The U.S. Dept. of Defense awarded $670.2-million to Pratt & Whitney, for procuring components and materials needed for manufacturing F135 propulsion systems. This award follows a $2.8-billion contract ...

Add Yahoo as a preferred source to see more of our stories on Google. The F-35 program is delaying some of its planned Block 4 upgrades as it focuses on delivering capabilities as early as 2031. (A1C ...

The F-35 will also serve as a test bed for technologies that will become commonplace in the next generation of jets. Flying ...