JC> Not true at all.  There are many people around that have no experience
 JC> in Transport Type Aircraft that use yaw dampeners.  They don't know
 JC> what  they do, why they do it, the reason for having them and when and
 JC> how  they can be overriden.  It also varies by aircraft.  The 727 can't
 JC> fly  without them the DC-9-30 has them but could get by without them. 
 JC> Food  for thought.
Right on Jim - as you know, susceptability to Dutch Roll is
relative to the degree of sweep-back. Way back in the '70s I
was taking my B-727-200 training at Boeing. The dutch
roll/yaw dampers off was so hairy in the simulator only demo
that, as I was going to be in charge of training on this
bird, I felt I should experience it in the aircraft. When I
asked my instructor if it was permisable, he said "OK, but
if the roll exceeds 8 degrees, snap the yaw dampers on
fast!" I said "Why, because you're afraid we might lose control?" he
replied "No, I'm afraid the tail might come off!"
LMW
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