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Sunday, February 5, 2023

on video How the Fly By Wire System keeps an Aircraft safe?


 How the Fly By Wire System keeps an Aircraft safe? 

We see what is a fly by wire system and how the fly by wire system receives information from the Pilot or the Autopilot. We see how the Flight Control Computer will process all the information by taking in inputs from different sources such as the air data computers, the actual position of the control surface and received signal. Based on this the computer will apply some correction and send commands for control surface deflection.

 So the best-known feature of the Airbus fly-by-wire system is the sidestick. I did a whole video on the sidestick, which you might wanna checkout right here. So by moving the sidestick, you actually move mechanical levers and dampers which sit below the sidestick and this movement gets converted into a digital signal. Okay, let's say we were to make a left turn. Our left turn digital signal then runs by wire to a set of seven Flight control computers. The first one is ELAC 1. Which stands for Elevator and Aileron Computer. ELAC 2 acts as a backup in case ELAC 1 fails. So the ELAC 1 checks the received digital signal, before sending it off to the flight control surface. What I mean by "checking the signal" you'll see in a minute. So from ELAC our left turn digital signal then yet again runs through a wire/electric cable to one of the hydraulic actuators on the left-hand aileron and on the right-hand aileron, where our digital signal is then converted into a mechanical force moving the left-hand aileron upwards and the right-hand aileron downwards. Does that make sense so far? 



 How the Fly By Wire System keeps an Aircraft safe? 

We see what is a fly by wire system and how the fly by wire system receives information from the Pilot or the Autopilot. We see how the Flight Control Computer will process all the information by taking in inputs from different sources such as the air data computers, the actual position of the control surface and received signal. Based on this the computer will apply some correction and send commands for control surface deflection.

 So the best-known feature of the Airbus fly-by-wire system is the sidestick. I did a whole video on the sidestick, which you might wanna checkout right here. So by moving the sidestick, you actually move mechanical levers and dampers which sit below the sidestick and this movement gets converted into a digital signal. Okay, let's say we were to make a left turn. Our left turn digital signal then runs by wire to a set of seven Flight control computers. The first one is ELAC 1. Which stands for Elevator and Aileron Computer. ELAC 2 acts as a backup in case ELAC 1 fails. So the ELAC 1 checks the received digital signal, before sending it off to the flight control surface. What I mean by "checking the signal" you'll see in a minute. So from ELAC our left turn digital signal then yet again runs through a wire/electric cable to one of the hydraulic actuators on the left-hand aileron and on the right-hand aileron, where our digital signal is then converted into a mechanical force moving the left-hand aileron upwards and the right-hand aileron downwards. Does that make sense so far? 


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