Open doors during pressurized flight....?
Hardly possible in-flight with up to 2-tons pressure per square foot on the doors, primarily because fuselage doors have to hinge inward first before they can be opened outward. The inward movement is evident as you rotate the door handle to the open position. Inside-fuselage doors on the DC10 and L10 also first move inward before they retract upward into the ceiling. Because of the extreme cabin pressure, the inward hinged vent plugs on cargo doors cannot be opened either.