 The maneuvering and sea keeping basic facility or mask in Carderock, Maryland test-modeled Navy ships for movement, strength, and control. Upgraded this year, MAS replaced its wave-making system. The mask itself is 240 feet wide, 360 feet long. It's got a now a row of wave makers, 216 paddles around the perimeter of two sides, so we can create all kinds of sea conditions. MAS has the ability to mimic some of the worst sea states a Navy ship may face, allowing engineers to develop the best ship configurations. Well it's important to test scale models first before you go to sea with the ship because you don't want to put the ship in any kind of danger before you know how it's going to operate. So we start out slow with low sea states, low speeds, work our way up. We measure roll, pitch, we measure all the accelerations, all the velocities. Naval Surface Warfare Center Carderock develops new technology that addresses the Navy's evolving missions. From Defense Media Activity, I'm Petty Officer James Norman.