On Using Self Contained Underwater Breathing Apparatus
NATIONAL ACADEMY OF SCIENCES-NATIONAL RESEARCH COUNCIL WASHINGTON DC COMMITTEE ON AMPHIBIOUS OPERATIONS
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Within the last 3-5 years we have witnessed in this country a rapid increase in the numbers of self contained underwater breathing apparatus SCUBA in use. Not only are these devices useful to the military underwater demolition teams and explosive ordnance disposal units but they are finding increased use as research tools in universities, particularly the oceanographic institutions. SCUBA are now in relatively large scale use by spearfishermen and sports swimmers, particularly along the California coast. Perhaps the SCUBA best known to civilians is the French Aqualung, an open circuit apparatus using compressed air. In addition to this type of open circuit apparatus, there are also semi-closed and closed circuit SCUBA, but these later units are not yet in widespread civilian use in this country.
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