parachuting from a malaysian 777 ?, page-17

Whatever you guys are smoking I wouldn't have minded some of it in my wild days.

Do you seriously think you could get an Air Worthiness Certificate on a plane that a sleepy passenger could open the exit door instead of the dunny door?

Get a grip.

Knowing that lovers of adventure movies would never allow common sense to interfere with their wild dreams, I did the obvious and SEARCHED the question. On a site [the first I opened, how hard is that] called "Ask the Pilot" or something I found reply. [In part] reply:

What if somebody opens a door during flight?

It seems that a week can’t go by without hearing the latest story about a passenger who went cuckoo and tried to yank open an emergency exit, only to be tackled and restrained by those around him, who thought they were on the verge of being ejected into the troposphere.

While the news never fails to report these events, it seldom mentions the most important fact: You cannot – repeat, cannot – open the doors or emergency hatches of an airplane in flight. You can’t open them for the simple reason that cabin pressure won’t allow it. Think of an aircraft door as a drain plug, fixed in place by the interior pressure. Almost all aircraft exits open inward. Some retract upward into the ceiling; others swing outward; but they open inward first, and not even the most musclebound human will overcome the force holding them shut. At a typical cruising altitude, up to eight pounds of pressure are pushing against every square inch of interior fuselage. That’s over 1,100 pounds against each square foot of door. Even at low altitudes, where cabin pressure levels are much less, a meager 2 p.s.i. differential is still more than anyone can displace — even after six cups of coffee and the aggravation that comes with sitting behind a shrieking baby. The doors are further held secure by a series of electrical and/or mechanical latches.