A crew works atop exhaust cooler 1 of the Aeropropulsion Systems Test Facility at Arnold Air Force Base, Tenn., Sept. 14, 2021. A section of the ducting was cut away to allow heat exchangers to be installed in the cooler, as part of the Next Generation Turbine Engine Test Capability project. A hatch will be installed to allow access for future maintenance. (U.S. Air Force photo by Jill Pickett)
24.0-70.0 mm f/2.8
No camera details available.
This photograph is considered public domain and has been cleared for release.
If you would like to republish please give the photographer appropriate credit.
Further, any commercial or non-commercial use of this photograph or any other
DoD image must be made in compliance with guidance found at
which pertains to intellectual property restrictions (e.g., copyright and
trademark, including the use of official emblems, insignia, names and slogans), warnings
regarding use of images of identifiable personnel, appearance of endorsement, and related matters.