A U.S. Air Force pararescueman begins his descent of 40 feet. A U.S. Air Force pararescueman begins his descent of 40 feet from the belly of a Marine Corps CH-53E Super Stallion helicopter over the Horn of Africa on Jan. 5, 2010. The pararescuemen are conducting training on their insertion and extraction techniques. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 114063-H-JFQ99-826.jpg Photo Gallery