Two MH-60S Knighthawk helicopters transfer cargo. Two MH-60S Knighthawk helicopters from Helicopter Sea Combat Squadron 21 transfer cargo from the fast-combat support ship USNS Rainier (T-AOE 7) to the aircraft carrier USS Ronald Reagan (CVN 76) during a replenishment at sea while underway in the Gulf of Oman on Aug. 7, 2009. SHARE: Download: Full Size (0.02 MB) Credit: VIRIN: 882548-W-MBG03-068.jpg Photo Gallery