U.S. Air Force To Reveal F-35 Propulsion Plan Soon

GE Aerospace’s XA100 prototype engine

GE Aerospace’s XA100 prototype engine includes a seven-stage compressor, two-stage high-pressure turbine and two-stage low-pressure turbine. Its three streams of airflow are depicted here.

Credit: GE Aviation
More than two decades of investment in a new kind of adaptive jet propulsion system faces a critical decision point in 2023. The U.S. Air Force must decide whether to spend more money to develop an upgraded version of the Pratt & Whitney F135 or replace the jet engine for the Lockheed Martin F-35A...
Steve Trimble

Steve covers military aviation, missiles and space for the Aviation Week Network, based in Washington DC.

Guy Norris

Guy is a Senior Editor for Aviation Week, covering technology and propulsion. He is based in Colorado Springs.

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