Staff Sgt. Anthony Landin, 92nd Maintenance Squadron hydraulics system craftsman, secures a ruddervator to the refueling boom Dec. 16, 2016, at Fairchild Air Force Base, Wash. A bell crank is a clamp style crank with splines that rotates the torque tube which in turn rotates the ruddervator. (U.S. Air Force photo/ Airman 1st Class Sean Campbell)
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