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Originally posted by Freeman
, it is very hard and requires skill that Arabs simply did not have.
Fly by wire technology was used to take control of the aircraft, block cockpit access to controls, and fly aircraft into the buildings. It was done from a remote location. On the day i remember reading somewhere that someone picked up signals in the air frequency matching fly by wire technology.
A fly-by-wire system literally replaces physical control of the aircraft with an electrical interface. The pilot uses a joystick to fly the plane, and his commands go through an electronic interface to operate actuators at each control surface. Those actuators initially were often hydraulic, but in recent years fully electric actuators have been investigated.
Originally posted by LeftBehind
That is not how Fly by Wire works, please do some basic research before you post such things.
Buildings were demolished. There are several pictures on the internet, my favourite is the one where you see "line" of smoke blowing out the windows just as the towers were collapsing, you can see similar lines forming on other floors below as the buildings were collapsing. Perhaps someone could find the pictures?