Aviation Ordnance Airman Nicholas Gravesande models the new concept Navy Working Uniform while explaining the safety precautions of using the 25mm MK-38 machine gun.

San Diego, Calif. (Feb. 08, 2005) Aviation Ordnance Airman Nicholas Gravesande models the new concept Navy Working Uniform while explaining the safety precautions of using the 25mm MK-38 machine gun aboard the amphibious assault ship USS Tarawa (LHA 1). The Mk-38 25mm machine gun system is a single-barrel, air-cooled, heavy machine gun capable of firing 175 rounds per minute. The Navy introduced a set of concept working uniforms for Sailors E-1 through O-10, Oct. 18, 2004, in response to the fleet's feedback on current uniforms. Four different uniform pattern types will be tested this winter at various locations throughout the world. Each uniform offers a variety of options that Sailors will have the opportunity to choose from. Feedback from the fleet will be used to determine the final Navy Working Uniform. U.S. Navy photo by Photographers Mate 1st Class Marvin Harris File# 050208-N-7217H-006