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Old 07-20-2009, 10:53 AM   #7
xoxoxoBruce
The future is unwritten
 
Join Date: Oct 2002
Posts: 71,105
Quote:
Originally Posted by SPUCK View Post
Imagine trying to open that with a vacuum inside.. About 10,000lbsf holding it shut. 24" x 16" x 2 x 14.7psi ~ 11,000lbsf.

Oh wait! You mean a v a c u u m! Whadayah think? Like a Kirby? or maybe a Vacuum Queen?
I'll bet that round thingy on the front is a pressure equalization valve. They have them on shipping containers for things like helicopter transmissions, because just a small change in altitude would make it impossible to open.
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