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Investment prepares AEDC to test next-gen engines
A heat exchanger is lifted and lowered into exhaust cooler 1 of the Aeropropulsion Systems Test Facility at Arnold Air Force Base, Tenn., Sept. 29, 2021. (U.S. Air Force photo by Jill Pickett)

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Photo by: Jill Pickett |  VIRIN: 210929-F-KN521-1026.JPG