Limited Unmanned Evaluation of the DIVEX SLS MK IV Backpack at Sea Level and 1000 FSW

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Limited Unmanned Evaluation of the DIVEX SLS MK IV Backpack at Sea Level and 1000 FSW

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dc.contributor NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL en_US
dc.contributor.author Swiergosz, MJ en_US
dc.contributor.author Steckel, RJ en_US
dc.date.accessioned 2006-09-03T20:35:22Z
dc.date.available 2006-09-03T20:35:22Z
dc.date.issued 2005 en_US
dc.identifier.govdoc ADA443528 en_US
dc.identifier.govdoc NEDU-TR-05-07 en_US
dc.identifier.govdoc XB-NAVSEA en_US
dc.identifier.other UBA(UNDERWATER BREATHING APPARATUS) en_US
dc.identifier.other UNMANNED TESTING en_US
dc.identifier.other SLS(SECONDARY LIFE SUPPORT) en_US
dc.identifier.other FSW(FEET OF SEAWATER) en_US
dc.identifier.other TA-04-17 en_US
dc.identifier.uri http://archive.rubicon-foundation.org/3537
dc.description Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested. en_US
dc.description.abstract Resistive efforts, inhalation gas temperatures, and carbon dioxide (CO2) canister and bottle durations were measured from two Secondary Life Support (SLS) system MK IV backpacks attached to the SLS helmet (Divex, LTD) in simulated conditions. Resistive effort at 0 feet of seawater (fsw) was assessed at three different backpack orientations (0 degrees, 45 degrees, 90 degrees), and all of the dependent measures were assessed at depth (1000 fsw) at the 45 degree orientation. A breathing simulator maintained a respiratory minute volume (RMV) of 62.5 liters per minute (L/min) throughout testing. As anticipated, breathing resistance at 0 fsw increased as backpack orientation was adjusted from 0 to 90 degrees, and breathing resistance was greater at 1000 fsw than at 0 fsw. The increase in breathing resistance at depth is not expected to preclude human use. Measured CO2 canister and bottle durations were no less than 12.7 (0.5percent surface equivalent value [SEV]) and 22.4 minutes, respectively, and mean inhalation gas temperature was 69.5 degrees F. Results from these limited simulations indicate that the SLS MK IV backpack and helmet are safe for controlled man testing and are expected to provide sufficient secondary life support for a saturation diver to return to a diving bell at 1000 fsw. en_US
dc.format.extent 1525713 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.rights Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested. en_US
dc.subject TEST AND EVALUATION en_US
dc.subject DIVERS en_US
dc.subject BACKPACKS en_US
dc.subject UNDERWATER LIFE SUPPORT SYSTEMS en_US
dc.subject RESISTANCE en_US
dc.subject GASES en_US
dc.subject UNMANNED en_US
dc.subject BREATHING APPARATUS en_US
dc.subject DIVER EQUIPMENT en_US
dc.subject CARBON DIOXIDE en_US
dc.subject SEA LEVEL en_US
dc.subject BOTTLES en_US
dc.title Limited Unmanned Evaluation of the DIVEX SLS MK IV Backpack at Sea Level and 1000 FSW en_US

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