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Re: Screaming dromaeosaur biplane killers of the air



Jim Cunningham (jrccea@bellsouth.net) wrote:

<Doesn't make any difference whether it is cambered or not; a fixed
tailplane aft of a flapping wing producing an oscillating downwash will
help thrust production. No assumption is involved, and camber, or lack
thereof, doesn't have anything to do with it.  It doesn't have anything to
do with this, but as an aside, one might keep in mind that a flat plate
has essentially the same lift slope as a cambered plate.>

  Then the original surmise was correct ... *Microraptor gui* may work
very well as a glider. But what is the forewing is not flapping? Note, I
do not consider the arm is incapable of any up and down movement, just
contradicting the statement that it was better at this than was
*Archaeopteryx*. As well as that the same data indicates an alternate
function of the arm, and does not, in fact, preclude a flapping, powered
flyer (sensu Czerkas et al.).

  Cheers,

=====
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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