In article ,
Stephen James wrote:

On Mon, 2 May 2011 22:04:36 +0100, Netko
wrote:

A couple of videos of a Tu-154 "apparently suffering serious in-flight
oscillations". I reckon the aircraft was drunk.

http://tinyurl.com/6zhpmke

Or, if you don't trust me, go for the full URL:

http://www.flightglobal.com/articles.../video-tu-154-
struggles-against-in-flight-oscillation.html


Looks like what we used to call a snaking/dutch roll.

IIRC the B707 suffered from this problem in it's early flight testing.

Regards
Stephen

Failed yaw damper? That is a BAD case of Dutch roll!