Barely controllable Tu-154 - another UA232
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Well done by he crew.....
Hope there will be a report on what happend to this flight....
I wanna open this threat with my guess:....
CG too far aft and out of the envelope.... Just a guess....
Hope there will be a report on what happend to this flight....
I wanna open this threat with my guess:....
CG too far aft and out of the envelope.... Just a guess....
CG too far aft and out of the envelope.... Just a guess...
A textbook Dutch Roll - so a failed yaw damper? [nah, - never mind - Tu-154's anhedral supposedly eliminates need for YD)
Dutch roll - Wikipedia, the free encyclopedia
Anyway - stupendous work by the crew to work around the instability and bring 'er home!
____
Edit: Chkalovsky Airport outside Moscow? (trying to translate the cyrillic)
Last edited by pattern_is_full; 1st May 2011 at 05:06.
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Looks like a complete loss of flight controls, or a combination of hydraulic loss and stuck flight controls. My guess is they steer the aircraft with engine power.
No wheelbrakes upon landing.
BTW Dutch roll is only at high altitude.
No wheelbrakes upon landing.
BTW Dutch roll is only at high altitude.
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Seems a little suspicious to me. If anything I would suspect a YD failure (not sure about how the 154 is equipped). If this had happened on my trusty 727 we'd simply disconnect the thing and land normally.
Pegase Driver
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Some control locks still on ? In any case big applause to both the crew and Mr Tupolev for building good strong airplanes . Pity we miss flare and touch down on the video, I bet it did not touch down on the 2 mains at the same time .
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Astounding oscillations on that "downwind" and besides the roll and extreme yaw, it looked to me like some large pitch down cycles as well. Can't help but wonder if the tails of certain composite material jetliners would have stayed on.
Those damn CTC guys set up new shop.... 
I wonder if any of our Russian friends on Pprune can find out if that was a scheduled PAX flight...?
It was certainly heart stopping to watch..! Well done to the crew for getting it back on terra firma safely
It was certainly heart stopping to watch..! Well done to the crew for getting it back on terra firma safely
Rumour control has it that it was a test flight after being in storage for 10 years. That is and I stress, just a rumour...
Fit like min?
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2nd YT clip does seem to show a line up of stored 154s. If true, wonder why this one was being brought back into use.
Well done indeed to the crew - not a pleasant experience from the footage!
Well done indeed to the crew - not a pleasant experience from the footage!
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It was indeed a first test flight after being in storage for 10 years. It's a military airfield and an aircraft belonging to Russian Army, so you won't ever know why was it necessary to get this plane back in air after 10-year break...
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Not to be too flippant - but I hope they were all wearing brown corduroy trousers! But to be serious for a minute great airmanship to get the thing down in one piece.
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If you look at video no. 2, I see apparently no aileron movement, but a lot of rudder movement. If ailerons are locked, you can use rudder as a roll control, but it is only a secondary result.
Pitch cannot change so quickly unless you have some kind of pitch control (Trim only??). I flew the 727, and change of thrust gave no initially change of pitch. That was also a secondary result of speed change.
I have tried similar problem - simulated in a little piper - we froze the stick, and had only trim and rudder. It was possible to steer the aircraft, but the handling was exact like we see on this video.
Maybe we should test a frozen stick in the simulator and see how it will turn out?
Pitch cannot change so quickly unless you have some kind of pitch control (Trim only??). I flew the 727, and change of thrust gave no initially change of pitch. That was also a secondary result of speed change.
I have tried similar problem - simulated in a little piper - we froze the stick, and had only trim and rudder. It was possible to steer the aircraft, but the handling was exact like we see on this video.
Maybe we should test a frozen stick in the simulator and see how it will turn out?