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Old 29th Jul 2008, 02:09
  #608 (permalink)  
treblemaker
 
Join Date: Feb 2007
Location: Pacific Northwest, USA
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SLF, but engineer in an unrelated field -- means I see some interesting clues that have not been assembled in one post yet.

Perhaps I may not accurately recall what I have seen in the past 500 or so posts, so feel free to correct. But I think I've seen the following claims:
  • If valve is detached from the bottle, the bottle is unlikely to have room to accelerate enough to have sufficient momentum to puncture the hull.
  • Escaping O2 will be quite cold due to the expansion from extreme high pressure in the bottle.
  • Passenger O2 bottles are mounted inverted (valve at the bottom) (This is the one of which I'm most unsure. Of course now as I search back through the thread I cannot find this)
  • Therefore very cold, high-speed gas will be impinging on the inward-curving fuselage below the bottle mounting.
Would the Aluminum alloys used in the frame and skin tend to become brittle, and therefore weaker, at extreme cold temperatures that might be produced by the expanding gas?
Best Regards,
T.
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