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The following link explains that "it serves as a bleed valve, allowing pressure between the air in the passenger cabin and the air between the outer and middle panes [an airplane window has three panes] to equilibrate", yet it mentions that it is "a failsafe designed to hold the cabin pressure in the event that the outer [pane] is fractured".
Isn't this a contradiction? The middle pane is there to hold the cabin pressure in the event the outer pane is fractured, but the hole would cause the cabin pressure to decrease.
http://io9.gizmodo.com/i-think-there-s-a-hole-in-your-logic-1703851837
Isn't this a contradiction? The middle pane is there to hold the cabin pressure in the event the outer pane is fractured, but the hole would cause the cabin pressure to decrease.
http://io9.gizmodo.com/i-think-there-s-a-hole-in-your-logic-1703851837