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 effectiveness of this strike validated all of the capabilities of the F-35 we’ve been talking about for years,” said Col.

EAST HARTFORD, Conn. (AP) - Heat was the cause of a cracked blade in an engine on an F-35 fighter jet that prompted the entire fleet to be briefly grounded last month, manufacturer Pratt & Whitney ...

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 ...

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 ...