Unmanned and Manned Evaluation of a Prototype Closed-Circuit Underwater Breathing Apparatus, the EX 19

Abstract

The EX 19 is an advanced self contained closed circuit underwater breathing apparatus (AUBA). Two prototype designs, one from S-TRON, Redwood City, CA, and the other from the Naval Coastal Systems Center (NCSC), Panama City, FL, were evaluated for their breathing performance and canister duration by unmanned and manned testing procedures. The unmanned breathing resistance results of both prototypes met the Navy Experimental Diving Unit (NEDU) performance goals established in NEDU Report 3-81. However, the negative static load of the S-TRON EX 19 made it unsafe to conduct manned testing in depths deeper than 14 feet of fresh water. In addition, the S-TRON carbon dioxide absorbent canister did not meet the specifications described in the Test and Evaluation Master Plan No. 098-10. On the other hand, the NCSC prototype met all the specifications for Milestone I of the EX 19 AUBA development. Keywords: Closed circuit, Underwater breathing apparatus, Breathing resistance, Canister duration, Static pressure, Advanced underwater breathing apparatus.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1988
Accession Number
ADA199801

Entities

People

  • M. E. Knafelc

Organizations

  • United States Navy Experimental Diving Unit

Tags

Communities of Interest

  • Autonomy
  • Biomedical

DTIC Thesaurus Topics

  • Canisters
  • Diving
  • Drops
  • Engineering
  • Fresh Water
  • Gages
  • Gases
  • Human Factors Engineering
  • Measurement
  • Pressure Measurement
  • Pressure Transducers
  • Resistance
  • Standards
  • Static Pressure
  • Test And Evaluation
  • Transducers
  • Water

Readers

  • Materials Science

Technology Areas

  • Autonomy