The finalized Lot 18 and 19 contracts for the F-35’s F135 engines have been delayed six months to early 2026, the Joint Program Office told Air & Space Forces Magazine. It did not elaborate on what’s causing the delay or whether it would affect production ...
F-35 engines
The Pentagon and contractor Pratt & Whitney reached a $2.88 billion deal for new F-35 engines, the Defense Department announced Aug. 22. The deal covers 141 F135 engines included in Lot 18 of the F-35 program, putting the average price of each engine around $20.4 ...
“The F-35 is the most advanced fighter yet built, but decisions and compromises imposed on it more than a decade ago continue to push up its cost, decrease its reliability, limit its performance, and constrain its ability to exploit new technologies. For fighter pilots of ...
The F-35 Joint Program Office is sticking by its endorsement of Pratt & Whitney’s Engine Core Upgrade (ECU) for the F135 powerplant, saying the improvement will meet all the fighter’s future needs for power. But it declined to weigh in on the increasingly combative war ...
F-35 maker Lockheed Martin thinks the Pentagon should reverse course and pursue the more expensive but technologically advanced Adaptive Engine Transition Program (AETP) for future versions of the fighter, rather than the more incremental F135 Engine Core Upgrade chosen by the Air Force in its ...
The Pentagon awarded a contract worth over $2 billion for the next batch of F-35 engines to Pratt & Whitney on June 5. The deal for Lot 17 F135 engines, totaling $2.02 billion, is expected to be completed by December 2025.
Congress should direct the Pentagon to break out the F-35’s propulsion upgrade from the rest of the program to better to track its scope, schedule, and cost, the Government Accountability Office urged in a new May 30 report. Meanwhile, engine-maker Pratt & Whitney added its ...
If the Air Force and Pentagon decide the F-35 fighter needs an all-new engine, it wouldn’t just give the jet range and performance improvements—it would drive a refresh of the entire fighter propulsion industrial base, a GE Aerospace official claimed Feb. 16. Competitor Pratt & ...
A month after F-35 fighter deliveries were halted pending an investigation into a Dec. 14 crash, Pratt & Whitney said it has a fix in hand that will allow deliveries to resume by the end of February. The problem had to do with harmonic resonance, ...
Pratt & Whitney would like to keep its monopoly on supplying powerplants for the F-35 fighter fleet and is pushing for the government to choose an upgrade of the F135 engine instead of an all-new adaptive engine, which it said would be far more costly ...
Nearly 50 members of Congress have urged Defense Secretary Lloyd J. Austin III to fund a new phase of development for advanced fighter engines in the fiscal 2024 budget, sending a letter to the Pentagon on Oct. 7. The letter, signed by 49 lawmakers from ...
Reduced competition, over-reliance on legacy systems, and declining funding are all contributing to a “critical inflection point” in propulsion for the Pentagon and industry members—and things are headed in the wrong direction, the director of the Air Force’s propulsion directorate warned. Speaking with reporters at ...
