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Re: Archaeopteryx not the first bird, is the earliest known (powered) flying dinosaur



Also, non-flapping airfoils located immediately behind flapping airfoils substantially increase the thrust of the flapping airfoils. That could be handy in a draggy animal.
JimC


----- Original Message ----- From: <GSP1954@aol.com>
To: <dinosaur@usc.edu>
Sent: Tuesday, December 06, 2005 1:00 PM
Subject: Re: Archaeopteryx not the first bird, is the earliest known (powered) flying dinosaur



There was no need for sinornithosaurs to deploy the nonflapping leg wings
when power flying. As I discussed in Prehistoric Times a few years ago, they
could have been used to increase the range of periodic nonpowered glides, for
soaring, and has extra flight controls, especially flight brakes, among aerial hunt
ers that lacked the more sophisticated flight apparatus of real raptors.


G Paul