Originally Posted by
ticketec
Close, ADIRU's air data inertial reference units. there are 3 of them onboard.
It was the flight management computers that fed the rudder in that quick. It's designed so that if there is an engine out senario the pilots to not have to correct for the lost engine, but rather manage the situation.
Thanks
dave
That's exactly what I was thinking when watching this video. From my understanding, most modern planes are designed with flight assist computer systems as you mentioned. Scariest experience I've had in a jet was landing in Narita some years ago around 3 in the afternoon. I was looking at the monitor and saw we were less than 2,000 feet of alt during the final approach and moving through a thick cloud. It was pouring rain and windy and the plane was rolling all over the place. I just kept watching the alt drop more and more but couldn't see the ground past the clouds but I knew the ground was coming soon. Looking out at the wing I could see a half dozen or so spoilers located on the top of the wing at the trailing edge and on top going crazy up and down individually at different speeds and pitches to counter the rolls. I was thinking there's no way the pilot is controlling all those at the same time along with the rudder, ailerons, elevator, throttle. It's all got to be computer assist. Would this be a fair statement?
In the video on this thread, my initial opinion is that the computer got involved when there was a deviation from what the pilot wanted and what the plane was actually doing. So the computer system stepped in and made the appropriate adjustment to the control surface to stay in line with what the pilot was doing at the controls. In this case the rudder was adjusted by the computer. Pretty cool stuff, just as long as that computer system doesn't go down at the wrong time. I think (from what I understand) the Asiana flight at SFO that crash landed a year or so ago was due in part because a ground system that communicates with the system in the plane was not in operation at the time of the incident occurred, and the pilots had no real experience landing at SFO without the system in operation. Had the system been in operation, the ground system would have communicated with the plane and either the pilots would have corrected their approach or the plane would have done it automatically via the flight assist system. You guys would know more about this than I would. Is this what happened in that situation or not?
That's also what's so interesting about military aircraft these days. They have so many control surfaces that are moving further and further away from the traditional controls (flaps, ailerons, rudder, elevator, throttle) . Most of these planes couldn't even be flown by just a pilot without the computer systems.
Cool stuff I think.