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Re: Screaming dromaeosaur biplane killers of the air

Kris Kripchak (MariusRomanus@aol.com) wrote:

<Ok... Jaime... Do you believe that *Archaeopteryx* could have been a good
flier with the traits it had... but lacked in the department of having the
ability for a powered take off? I see a large keeled sternum and pulley
mechanism as being componets that are linked to a strong powered take off.
What do you think?>

  I think that for a power take off (jumping in the air and flapping up)
requires the advanced pully system as a component of the power flapping,
as you note, and that without this (or a rudimentary version of it, as in
*Archaeopteryx*) or the keel that anchors the large pectorals that
provides the aerobic down thrust, *Archaeopteryx* is like a swan on water,
running to gain lift to take off. I have little to say that if it flew it
was minimally and it seems to be a well-adapted glider transistory to
flapping flight, as was improperly (in my opinion) applied to
*Microraptor*. I have little opinion of its lifestyle apart from
biomechanical considerations.


Jaime A. Headden

  Little steps are often the hardest to take.  We are too used to making leaps 
in the face of adversity, that a simple skip is so hard to do.  We should all 
learn to walk soft, walk small, see the world around us rather than zoom by it.

"Innocent, unbiased observation is a myth." --- P.B. Medawar (1969)

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