Pratt & Whitney F135

A preliminary design review for the F-35 Engine Core Upgrade is scheduled by the end of January, paving the way to start the next phase of development.

The fighter needs more cooling system capacity to keep electronics from overheating, but long-term requirements may entail major changes.

The U.S. government has cleared South Korea to move forward with a previously approved plan to buy a second batch of Lockheed Martin F-35As.

Speaking at the Global Air and Space Chiefs' Conference, a Pratt & Whitney executive says it has 400 engineers working on a major upgrade for the F135 engine.

Raytheon’s lobbyist accused a Lockheed Martin executive of deception for publicly supporting a proposal to replace the F-35 engine.

The Senate Armed Services Committee has passed its version of the fiscal 2024 defense policy bill.

A blistering statement attacks Lockheed Martin for continuing to support re-engining the fighter.

A new audit report blames a cooling system flaw that Lockheed Martin discovered 15 years ago for a problem that could cost $38 billion in extra repair bills.

A rare tour of GE’s test chamber for adaptive engines highlights the reality of the new technologies as the company tries to save the program from cancellation.

The service is ending the Adaptive Engine Transition Program for its fleet, opting instead for Pratt’s cheaper Engine Core Upgrade proposal.

Rep. Rob Wittman, (R-Va.), says he wants to ensure that lawmakers understand the advantages of the engines.

The delivery stoppage prevented Lockheed from reaching its delivery target of at least 148 F-35s in 2022.

The U.S. Air Force will not go ahead with a full engine replacement for its Lockheed Martin F-35A.

The F-35 Joint Program Office suspended F-35 deliveries and halted production flight operations after the Dec. 15 crash of a Lockheed-owned F-35B.

The contractual milestone ends a four-year negotiating process with the F-35 Joint Program Office as the U.S. Air Force evaluates a replacement engine.

The F-35 Joint Program Office has issued a directive recommending that all Pratt & Whitney F135 engines be retrofitted within 90 days.

Pratt & Whitney says it has developed an “immediate resolution” to the F135 engine problem that caused the crash of a Lockheed Martin F-35B.

GE Aerospace is beginning design work for a production standard version of the XA100 adaptive engine for the Lockheed Martin F-35.

The 407,000-sq.-ft., $424 million facility is scheduled to begin construction at NAS Jacksonville, Florida, in fiscal 2026.

The F-35 Joint Program Office is expecting a cost-per-tail increase on the aircraft as negotiations with prime contractor Lockheed Martin continue beyond initial expected deadlines.