The USN LCAC (Landing Craft Air Cushion), an amphibious assault component for the Navy and Marine Corp, has many advantages over conventional hull displacement landing craft. The LCAC is more than four times faster than current landing craft and are capable of exceeding 40 knots on water and up to 25 knots on land. This performance is obtainable since the LCAC rides on a four foot cushion of trapped air and can operate in waters regardless of depth, waves, obstacles, or tides.