Hovering with only the rear wheels touching the edge of a cliff, pilots from Company B, 2nd General Support Aviation Battalion, 227th Aviation Regiment, 1st Air Cavalry Brigade, 1st Cavalry Division, perform a maneuver called a pinnacle in a CH-47F Chinook helicopter during a training flight, here, Aug. 26. The pinnacle allows the pilots to drop of ground forces in areas too dangerous or too difficult to fully land in.
Staff Sgt. Nathan Hoskins
Taken on 26 August 2010
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