Morning prep work

Senior Master Sgt. Marshall Martindale, 'Coronet Oak' Flight Engineer, calculates takeoff and landing data as part of his morning aircraft prep work, Apr. 4, 2012. Flight Engineers must continually recalculate data in flight, which ensures an optimal C-130 performance throughout any mission. Several members from the 911th Airlift Wing are currently deployed to Puerto Rico in support of Air Expeditionary Force 'Coronet Oak' operations. (U.S. Air Force photo by Capt. Shawn M. Walleck/Released)

PHOTO BY: Capt. Shawn M. WalleckReleased
VIRIN: 120404-F-YA486-030.JPG
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