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Old 05-23-17, 07:59 PM   #2
ETR3(SS)
Ocean Warrior
 
Join Date: Dec 2007
Location: Between test depth and periscope depth
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Mostly because that compressed air has a specific use, like surfacing the boat in event of emergency. Also because none of the ventilation system hull valves were designed to be operated underwater. There were oxygen candles and a CO2 absorbent for extended submerged periods.
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USS Kentucky SSBN 737 (G)
Comms Div 2003-2006
Qualified 19 November 03

Yes I was really on a submarine.
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