Closing Aircraft Doors from Outside

The aircraft has the following fuselage doors: : Passenger door (type I exit) : Galley service door (type I exit) : Two overwing emergency exits (type III exit) : Flight compartment overhead escape hatch : Cargo door : Avionics compartment door : Aft equipment compartment door.

Aircraft doors are held in place physically by "a series of electrical and/or mechanical latches." This is one way in which they are kept secure despite the strong forces that aircraft encounter inflight. It also minimizes the risk of accidental opening. How aircraft doors open can differ, but the first movement is always one of inward motion.

We have established the mechanical means by which aircraft doors are kept shut, but there is another aspect to consider. What is stopping a dangerous individual from opening the door inflight and potentially endangering the lives of the aircraft's occupants by forcing a rapid decompression? Thankfully, the nature of physics renders this task impossible.

As well as being held in place by its latches, the door is effectively sealed by the pressure difference between the plane's cabin and the air outside it. The high pressure of the cabin forces the wedge-shaped, plug-like door into its socket. This prevents it from being released until the aircraft is on the ground, where there is not such a pressure difference.

[daniellai]

The knee support shows that she is 1 true tough Vietnamese girl.

[amfe]

The one inside left her high thumbs up hanging... Not cool.