A Pratt & Whitney F135 engine hangs in Arnold Engineering Development Complex (AEDC) Sea Level Test Cell 3 at Arnold Air Force Base, Tenn., between test runs Sept. 2, 2021. ( Air Force photo by Jill Pickett)

---

Size: 9156px × 5461px
Photo credit: © APFootage / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: air, arnold, base, division, force, test