Editing Fly-by-wire (section)

=== Closed-loop feedback control ===

[[File:Feedback loop with descriptions.svg|thumb|right|Simple [[feedback]] loop]]

A pilot commands the flight control computer to make the aircraft perform a certain action, such as pitch the aircraft up, or roll to one side, by moving the control column or [[sidestick]]. The flight control computer then calculates what control surface movements will cause the plane to perform that action and issues those commands to the electronic controllers for each surface.<ref name=suth/> The controllers at each surface receive these commands and then move actuators attached to the control surface until it has moved to where the flight control computer commanded it to. The controllers measure the position of the flight control surface with sensors such as [[LVDT]]s.<ref>{{Cite web|url=https://sensing.honeywell.com/aerospace-and-defense/flight-control-surfaces|title=Flight Control Surfaces Sensors and Switches – Honeywell|date=2018|website=sensing.honeywell.com|access-date=2018-11-26}}</ref>