U.S. Navy aviation machinist's mates perform maintenance on a helicopter tail rotor assembly. U.S. Navy aviation machinist's mates perform maintenance on a helicopter tail rotor assembly on the aircraft carrier USS Ronald Reagan (CVN 76) as the ship operates in the Persian Gulf on Feb. 28, 2006. Reagan and its embarked Carrier Air Wing 14 are conducting maritime security operations in the Persian Gulf region. SHARE: Download: Full Size (0.09 MB) Credit: VIRIN: 191099-Z-CEI90-721.jpg Photo Gallery