Getting ready to drop the boom!
U.S. Air Force Staff Sgt. William Park, 131st Maintenance Squadron Munitions Flight conventional maintenance section crew chief, (left), U.S. Air Force Staff Sgt. Joseph Hausman, 509th Munitions Squadron conventional maintenance section crew chief, and Airman 1st Class Zachary Howard, 509th Munitions Squadron conventional maintenance section crew chief assemble a KMU-556 tail kit to a GBU-31 Joint Direct Attack Munition at Whiteman Air Force Base, Mo., April 1, 2014.The GBU-31 weights approximately 2,000 pounds. (U.S. Air Force photo by Airman 1st Class Keenan Berry/Released)