U.S. Army flight crew members prepare a CH-47F Chinook helicopter from B. Company, 1st Battalion, 52nd Aviation Regiment for a flight to Kodiak, Alaska, Jan. 7, 2012.
The helicopter and crew flew to Kodiak on a mission to help the grounded oil rig Kulluk by hauling equipment to and from the rig. (U.S. Air Force photo by SSgt. Aaron M. Johnson). Original public domain image from Flickr