U.S. Marines rush to unload cargo from a U.S. Air Force Lockheed C-130B <i>Hercules</i> (s/n 58-0751) of the 772nd Tactical Airlift Squadron, 463rd Tactical Airlift Wing, at Khe Sanh while a forward air controller (FAC) flies cover in a Cessna O-2 <i>Skymaster</i> in the background. The FAC could quickly call in close air support to keep the enemy from firing mortar rounds at the C-130. Note the hole left in the ramp by a mortar.
USAF
<a rel="nofollow" class="external text" href="http://www.nationalmuseum.af.mil/photos/index.asp">National Museum of the U.S. Air Force</a> photo <a rel="nofollow" class="external text" href="http://www.nationalmuseum.af.mil/shared/media/photodb/photos/2013%5C06%5C130605-F-DW547-018.jpg">130605-F-DW547-018</a>