170123-N-TI693-094 PANAMA CITY, Fla. (Jan. 23, 2017) Chief Warrant Officer 5 Ray Schubert, command diving officer at the Navy Experimental Diving Unit (NEDU), stows his belongings into the Ocean Simulation Facility where he will be one of six Sailors being compressed to a depth of 500 feet for the first saturation dive in 10 years. The saturation dive will accomplish two goals: the first is to evaluate, test, and certify the new HELICOM Matrix which is a system that returns speech patterns to normal after the breathing of helium to enable better communication after breathing mixed gasses, and the second will be a training scenario to maintain qualifications for saturation diving. (U.S. Navy photo by Mass Communication Specialist 2nd Class Fred Gray IV/Released)