Manned Testing of the Superlite 17B Diving Helmet Compared with the Mk 1 Mod S Diver's Mask

摘要

The Diving Systems International Superlite 17B helmet underwent manned performance testing at a simulated depth of 850 feet of seawater during a helium-oxygen saturation dive in the Ocean Simulation Facility. The Navy MK 1 Mod S Diver's Mask was tested at the same time as a basis of comparison. Four subjects performed a total of 12 graded exercises (50-150 watts) on a submerged bicycle ergometer. Breathing characteristics of both UBA's were satisfactory and capable of supporting heavy exercise at 850 FSW. Maximum end tidal Co2 in mmHg at 150 watts was 55.2 + or- 5.9 in the Superlite 17B in a 45 deg head-up position, 48.0 + or - 9.7 for the Superlite 17B in the 45 deg head-down position, and 57.5 + or - 8.2 for the MK1 Mod S Diver's Mask in the 45 deg head-up position. A microphone manufactured by th U.S. Navy was substituted for the Superlite 17B microphone and provided better communications at depth.