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, ...

Key Points - The F-35 fighter jet program is facing mixed news this week. Pratt & Whitney announced at the Paris Air Show that a planned engine core upgrade has been delayed by a year, with its ...

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 ...

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 ...

Developing a next-generation fighter aircraft is a decades-long endeavor. The evolving nature of technological advancement and real-world needs means that a successful fighter will receive years of ...

After years of cost growth and schedule delays in its hardware and software modernization effort for the F-35 aircraft, known as Block 4, the Department of Defense (DOD) is in the process of ...