Staff Sgt. Joseph San Agustin, 64th Expeditionary Helicopter Maintenance Unit hydraulics specialist, inspects the main-rotor solid pins that hold the rotor blades to the main rotor Sept. 7, 2010, Joint Base Balad, Iraq. The HH-60 Pave Hawk Helicopter’s main rotor is 53 feet in diameter and spins at 258 revolution per minute. Sergeant San Augustin is a native of Guam and is deployed from Nellis Air Force Base, Nev. (U.S. Air Force photo/Staff Sgt. Phillip Butterfield)
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