Posted: 03/06/2021
An uninstalled General Electric F110-129 jet engine sits in full afterburner while performing functional checks at the 148th Fighter Wing Minnesota Air National Guard Hush House, Duluth, Minn., Feb.17, 2021. A hush house is an enclosed, noise-suppressed facility used for testing aircraft systems, including propulsion mechanics, electronics and pneumatics. (U.S. Air National Guard photo by Audra Flanagan)
