U.S. Air Force Senior Airman Luke Knutson, of the 119th Civil Engineer Squadron, works on a BEAR power unit, which is an 800kw generator at the North Dakota Air National Guard Base, Fargo, N.D., Jan. 21, 2015. (U.S. Air National Guard photo by Senior Master Sgt. David H. Lipp/Released)
Senior Master Sgt. David Lipp
Taken on 21 January 2015
<a rel="nofollow" class="external free" href="https://www.dvidshub.net/image/1730385">https://www.dvidshub.net/image/1730385</a>