Pratt & Whitney F135

By Steve Trimble
A longevity, thrust and fuel efficiency upgrade for the Lockheed Martin F-35 has passed a preliminary design review (PDR) milestone, Pratt & Whitney says.
Aircraft & Propulsion

By Tony Osborne
Patria and Pratt & Whitney have signed an agreement that paves the way for F135 engine production and sustainment in Finland to support Helsinki's future F-35 fleet.
Supply Chain

By Steve Trimble
F-35 engine manufacturer Pratt & Whitney still sees no risk to completing the critical design review on time by the middle of 2025.
Aircraft & Propulsion

By Steve Trimble
The company has launched a bid to replace the Honeywell Integrated Power Package with a new system offering greater cooling capacity.
Aircraft & Propulsion

By Brian Everstine
U.S. Air Force flight-related incidents increased in 2023, while Navy and Marine Corps rates stayed steady.
Aircraft & Propulsion

By Steve Trimble
During a test run on the ground, the Pratt & Whitney F135 engine ingested a flashlight left inside an inlet during a maintenance inspection.
Aircraft & Propulsion

By Steve Trimble
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.
Aircraft & Propulsion

By Steve Trimble
The fighter needs more cooling system capacity to keep electronics from overheating, but long-term requirements may entail major changes.
Aircraft & Propulsion

By Steve Trimble
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.
Budget, Policy & Operations

By Steve Trimble
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.
Aircraft & Propulsion

By Steve Trimble, Brian Everstine
Raytheon’s lobbyist accused a Lockheed Martin executive of deception for publicly supporting a proposal to replace the F-35 engine.
Aircraft & Propulsion

By Jen DiMascio
The Senate Armed Services Committee has passed its version of the fiscal 2024 defense policy bill.
Budget, Policy & Operations

By Steve Trimble
A blistering statement attacks Lockheed Martin for continuing to support re-engining the fighter.
Paris Air Show

By Steve Trimble
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.
Aircraft & Propulsion

By Steve Trimble
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.
Aircraft & Propulsion

By Brian Everstine
The service is ending the Adaptive Engine Transition Program for its fleet, opting instead for Pratt’s cheaper Engine Core Upgrade proposal.
Budget, Policy & Operations

By Brian Everstine
Rep. Rob Wittman, (R-Va.), says he wants to ensure that lawmakers understand the advantages of the engines.
Aircraft & Propulsion

By Steve Trimble
The delivery stoppage prevented Lockheed from reaching its delivery target of at least 148 F-35s in 2022.
Aircraft & Propulsion

By Brian Everstine
The U.S. Air Force will not go ahead with a full engine replacement for its Lockheed Martin F-35A.
Budget, Policy & Operations

By Steve Trimble
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.
Aircraft & Propulsion

By Steve Trimble
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.
Aircraft & Propulsion

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

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

By Guy Norris
GE Aerospace is beginning design work for a production standard version of the XA100 adaptive engine for the Lockheed Martin F-35.
Aircraft & Propulsion

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