Aircrew earn their pay

[Netko]

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/2011/05/01/356137/video-tu-154-
struggles-against-in-flight-oscillation.html>

[Stephen James]

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/2011/05/01/356137/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

[Orval Fairbairn]

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/2011/05/01/356137/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!

[Indrek[_2_]]

"Orval Fairbairn" > wrote in message
...
> 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/2011/05/01/356137/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!

I did some Googling and found one comment that said the aircraft flight
controls failed after takeoff and that the only means of control was the
engine power settings.

Cheers,

Indrek Aavisto


--
Criticism is easy; achievement is difficult W.S. Churchill