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RE: Evidence For a Feathered Velociraptor...

On Mon, 24 Sep 2007, Nick Page wrote:
I thought car spoilers mainly worked by giving a downward force and increased traction to the drive wheels.

Apparently works both ways; a surprise to some drivers as evidenced by those comments below ;)

A paddle shaped feathered tail could have the same effect but banking feathered forelimbs could work to tighten the turning circle of a dromeosaur just before striking its prey.
The dropped preyside forelimb also gives better sight of the prey.
No flying involved here.

From: "Richard W. Travsky" <rtravsky@uwyo.edu>

I could go along with that I suppose. The effect that comes to mind is
one that occurs with spoilers on cars

 Once you have a Spoiler on your car, you should be aware that it isn't
 there just for the looks. It has a valuable importance in stability at
 high speed. In Dyno tuning mode, I suggest setting the Downforce both
 for  front and rear to a equal value and as high as possible. This is
 useful  during high speed races. People like to see the caption of their
 car  while "lifting-off" a hill or bend, but that means that the wheels
 loose contact with the race track and also valuable speed, and grip. try
 to keep your car stuck to the track at all times for maximum performance.

Aerodynamic effect? As in lift? If you're running while being chased by
something, catching air would not necessarily be a good thing as this means
less contact with the ground for running. Might actually slow you down.


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