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johnblackstone · October 9, 2001, 08:36 PM

Normally, they cannot be opened when the cabin is pressurized. In all commercial aircraft I have flown (727, DC-9, DC-10, MD-80, and 777) all doors are plug type doors, meaning that air pressure keeps them closed until depressurized, shortly after landing or just before takeoff.

In the 777, the main entry doors are also locked physically as the aircraft accelerates through 80 knots.

Col. North's strategy is not workable.

October 9, 2001, 08:36 PM	#6
johnblackstone Member Join Date: October 29, 1999 Location: arlington, TX USA Posts: 59	aircraft doors Normally, they cannot be opened when the cabin is pressurized. In all commercial aircraft I have flown (727, DC-9, DC-10, MD-80, and 777) all doors are plug type doors, meaning that air pressure keeps them closed until depressurized, shortly after landing or just before takeoff. In the 777, the main entry doors are also locked physically as the aircraft accelerates through 80 knots. Col. North's strategy is not workable.