A U.S. Navy Landing Craft Air Cushion kicks up spray. A U.S. Navy Landing Craft Air Cushion, more commonly known as an LCAC, kicks up spray as it carries U.S. Marine Corps equipment from the dock landing ship USS Harpers Ferry (LSD 49) to White Beach Naval Facility in Okinawa, Japan, on March 27, 2008. Harpers Ferry sailors and the embarked Marines of the 31st Marine Expeditionary Unit are returning from bilateral training exercises and humanitarian civic action projects throughout the Western Pacific. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 689956-S-CLK40-901.jpg Photo Gallery