U.S. Marines prepare to practice rappelling and spy rigging out of a UH1-Y Huey helicopter on Camp Pendleton, Calif., March 11, 2009. U.S. Marines prepare to practice rappelling and spy rigging out of a UH1-Y Huey helicopter on Camp Pendleton, Calif., March 11, 2009. SHARE IMAGE: Download Image: Full Size (4.25 MB) Tags: Photo Essays Photo By: VIRIN: 930141-H-WPR47-074.jpg Photo Gallery