An adaptive engine inserts a new bypass flow duct, which can be opened in cruise flight to improve fuel efficiency and act as another source of cooling air for the electrical system. As the XA100 and XA101 enter testing, pressure is growing …

The US Air Force Life Cycle Management Center has specified that the GE Aviation XA100 and Pratt & Whitney XA101 must fit in the space within the F-35 currently occupied by the F135 turbofan engine.

Sep 30, 2021 · The XA101—Pratt’s entry in the competitive Adaptive Engine Transition Program (AETP)—delivered “amazing” results in the first series of ground testing completed in mid-September, says Matthew Bromberg, president of Pratt’s Military Engines unit. A second XA101 engine will enter ground testing next.

Jun 25, 2019 · The engine that goes into the F-35 and the engine that goes into the NGAD / PCA have been regarded as separate in past discussions. The XA100 / XA101 is currently designed more or less specifically for the F-35, while the next gen will either get the same engine (F110/F100 style on the F-15/F-16), or a variation (F119/F135 style) tailored for the NGAD / PCA (perhaps with some component ...

The engine that goes into the F-35 and the engine that goes into the NGAD / PCA have been regarded as separate in past discussions. The XA100 / XA101 is currently designed more or less specifically for the F-35, while the next gen will either get the same engine (F110/F100 style on the F-15/F-16), or a variation (F119/F135 style) tailored for ...

The revolutionary new powerplants arise from the Adaptive Engine Transition Program, run initially by the Air Force Research Laboratory and now by the Air Force Life Cycle Management Center. Based on development efforts dating back to 2007, the AETP program generated the XA100 from GE Aviation and the XA101 from Pratt & Whitney.

...The chief focus for these new AETD, AETP and XA101 engine cycles is the addition of a third air stream to provide either greater combat power or more range, depending on the phase of the mission.

The successful engine test of the XA100 is the culmination of GE’s multi-year collaboration with the US Air Force to develop adaptive cycle engines for USAF aircraft.

An adaptive cycle engine is an advanced design that draws on developments in the commercial sector to reduce fuel consu:mption during the flight envelope while also pushing more air through the engine to provide addttional power when AIR International\rJune/July 2022 Vol 102 No 6 …

The F-35A was selected as the target vehicle for the new engine as, according to Tweedie, “it is the fastest path to get this technology into the air,” with a targeted initial service release in fiscal year 2028. The XA100 is designed to fit within the F-35A’s engine bay with no modifications required to the aircraft.