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ps2 or xbox? marv Robert C. Leenen wrote: >Dude, you have a wild imagination... > >http://www.kuroyumes-developmentzone.com/appleyard/seapatrol/ > >Robert > > > >-----Original Message----- >From: anthony.appleyard@um*.ac*.uk* >[mailto:anthony.appleyard@um*.ac*.uk*] >Sent: Sunday, March 02, 2003 2:46 PM >To: techdiver@aquanaut.com >Subject: efficiency of sport diving rebreathers' absorbent canisters; >etc > >Today I went to a big diving exhibition at Excel in the Docklands in >London (UK). In the rebreather exhibit I was told that in shallow diving >the standard sport Inspiration's cylinders can last for 10 hours, but >the absorbent canister for only 4 hours. He admitted that the canister >may not be the best design for long duration. > >They said that the (UK) navy routinely uses sodium hydroxide as >rebreather absorbent and puts up with the resulting risk of "getting a >cocktail". Does sodium hydroxide give more duration than soda-lime or >Sofnolime etc for the same volume? > >Otherwise, I wonder if sport rebreathers' absorbent canisters are >purposely not designed to maximum duration so that they can't be used by >unofficial bodies for long-duration "frogman-type" covert penetration >and suchlike. > >I have heard of a new naval version of the Inspiration which has a black >casing, no magnetic parts, all flexible parts reinforced with kevlar, >and no consoles trailing on long hoses but instead a heads-up display in >a fullface mask like some modern jet fighter helmets have. > >http://www.kuroyumes-developmentzone.com/appleyard/seapatrol/uw/sp2_salv >us_attack5.jpg >Many rebreathers seem to give much less hydrodynamic drag in swimming >and much less drag and inertia in rolling over than ordinary air scuba. >I mentioned possible usefulness of this in by naval divers and diving >sea-police giving better speed and agility underwater in arresting sport >divers who get in the wrong place. He said that if the patrol diver has >an Inspiration, in a fight with a suspect there is a risk of the suspect >knowing about Inspirations and jabbing at the large and easily reached >feed- >pure-oxygen button, not a good thing at 60 feet. He said that in the >naval version that vulnerability is corrected. > >The design of the Inspiratrion with the breathing bag in halves in front >means that the breathing tubes are tehered to the shoulder straps part >way along. That seems to be an advantage: there is no long trailing loop >of tube behind where the frogman can't see it where it can catch on >things or a suspect being arrested can attach it; and it seems to still >allow full mobility of the head. > > >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > > > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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