F 35 Engine News Today

Company declares itself on track to deliver preliminary design for January review.

Company officials spar over access to engine information.

New GAO report details another $1.4 billion in upgrade costs, and additional delays.

All jets had received the modification earlier this month, but the Pentagon is still trying to figure out why a mysterious vibration is happening.

The U.S. Air Force decided to upgrade the existing engine instead of pursuing a new adaptive engine, and will likely talk to partners about the change l...

The Pentagon says it doesn’t know, and lawmakers have questions.

The F-35 Joint Program Office said an agreement was reached between defense officials and Pratt & Whitney, the maker of the engines, to suspend the deliveries pending the outcome of the crash investigation.

The fifth-generation fighter suffered its latest mishap last week. Why do the pricey planes keep crashing? MIC excess and promises of a ‘jack-of-all trades’ jet have something to with it.

Could the U.S. Air Force’s plan to retrofit its F-35 fleet with new propulsion systems undermine the jet fighter’s much vaunted interoperability?