TWEAKING THE TORQUE U.S. Army Sgt. William Grigsby adjusts torque tolerances on the mast of an OH-58D Kiowa helicopter on Logistical Support Area Diamondback, Mosul, Iraq, April 7, 2008. Grigsby is assigned to E Troop, 4th Squadron, 6th Air Cavalry Regiment. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 103465-N-EKT70-789.jpg Photo Gallery