Plane Answers: Do jets have keys, my first airline flight and overwing exits {Gadling}

Sep 25th 2009 6:15AM Arn't those doors build to only open to the inside?
Like the interior side of it being larger than the exterior one.
The higher pressure in the cabin will make them fit even thighter into their fittings making it impossible to open during flight, allowing construction to be lighter as you won't need as strong latches to keep it in position as if it were to open to the outside.