Viper (rebreather)

Viper (rebreather)

Viper is a new make of electronic-control closed circuit mixture rebreather made by [http://www.carletonlifesupport.com/Diving_VIPER.htm Carleton Life Support] It is designed for use by combat frogmen, and for diving to remove naval mines which may be sensitive to sound and anything magnetic. Their technology was derived from the Carleton SIVA 55 [http://www.carletonlifesupport.com/Diving_SIVA.htm] rebreathers.

It is worn in a wings-type stab jacket which incorporates two breathing bags, one on each side. All of its components are on the back, exposed, not in a backpack box as with many modern rebreathers. It can have a mouthpiece or a variety of fullface masks. It is designed to be silent and non-magnetic.

Its wearer's abdomen front is clear, making it easy for him to climb in and out of boats and over edges of walls and suchlike, unlike the SDBA ( [http://www.therebreathersite.nl/Zuurstofrebreathers/English/photos_sdba_mk5.htm image] ) (which has a large absorbent canister across the abdomen front). The Viper has a large cylindrical absorbent canister lengthwise on the back, and below that two spherical gas containers side by side, and below those sometimes is a bailout cylinder set crossways. Two gas circulation tubes go from the hemispherical top of the canister, one to each breathing bag. It has the usual loop of corrugated breathing tube, with one end connecting to each breathing bag.

Three versions of it are made:
*Viper SC Underwater Mine Countermeasures (MCM) Diving Apparatus: information at [http://www.carletonlifesupport.com/Diving_ViperSC.htm] [http://www.carletonlifesupport.com/pdf/Viper_SC.pdf] ,
http://www.carletonlifesupport.com/images/Diving1.jpgback view] [http://www.carletonlifesupport.com/images/Diving4.jpgfront view] .
*Viper Plus: information at [http://www.carletonlifesupport.com/Diving_ViperPLUS.htm] [http://www.carletonlifesupport.com/pdf/Viper_Plus.pdf] .
*Viper E Mixed Gas Underwater Breathing Apparatus: information at [http://www.carletonlifesupport.com/Diving_ViperE.htm] [http://www.carletonlifesupport.com/pdf/Viper_Plus.pdf] ,
http://www.carletonlifesupport.com/images/Diving1.jpgfront view] [http://www.carletonlifesupport.com/images/Diving2.jpgset showing stab backplate] .

* Maximum depth: Viper SC, 55 meters; Viper Plus, 90 meters; Viper E, 100 meters.
* Operating mode: Viper SC and Viper Plus, Semi-closed or closed circuit; Viper E, automatic electronic closed circuit with 3 sensors and 2 independent systems to monitor partial pressure of oxygen. The Viper SC can be upgraded to fully closed circuit electronic gas mixing for 100 meter operations.
* Dive duration: Viper E, 4 hours at 0°C
* Size: 78 cm = 30.7 inches high; 22 cm = 8.66 inches wide at top; 43 cm = 16.93 wide at hips; 24 mc = 9.45 inches deep.
* Weight: Out of water, less than 30 kg = 66 pounds. In seawater, zero.

External links

* http://www.carletonlifesupport.com/Diving.htm
* [http://www.therebreathersite.nl/Zuurstofrebreathers/Canada/index.html Carleton rebreathers at The_rebreather_site]


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