July 20, 2009: ALSRC -04

[xoxoxoBruce]

Originally Posted by SPUCK

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.