Accession Number : ADA291841

Title :   Eliminating Chatter in the MK 24 Full Face Mask By Adjusting Demand Lever Free Play and Inhalation Cracking Pressure.

Descriptive Note : Technical rept. Nov 94-Jan 95,

Corporate Author : NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL

Personal Author(s) : Crepeau, Loring J.

PDF Url : ADA291841

Report Date : FEB 1995

Pagination or Media Count : 35

Abstract : The MK 24 full face mask (FFM) is configured to support MK 16 MOD 0 UBA decompression dives and SEAL delivery vehicle (SDV) transits. During certification testing at depths shallower than 15.3 msw (fsw) the FFM produced chatter upon inhalation in the open circuit mode, apparently due to newly-designed second stage regulator poppet valves and demand levers.

Descriptors :   *UNDERWATER, *BREATHING APPARATUS, *INHALATION, TEST AND EVALUATION, DELIVERY, CRACKS, DEPTH, PRESSURE, VEHICLES, CIRCUITS, SEALS(STOPPERS), DIVING, DECOMPRESSION, OXYGEN CONSUMPTION.

Subject Categories : Life Support Systems
      Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE