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Re: Screaming dromaeosaur biplane killers of the air

David Marjanovic wrote:
> ----- Original Message -----
> From: "Jaime A. Headden" <qilongia@yahoo.com>
> Sent: Friday, January 31, 2003 5:02 AM

> > <Since there is no evidence for the ability to flap the legs the leg
> > feathers were purely for generating lift for pertinent purposes, they did
> > not generate thrust.>

If the leg feathers were held in a semi-horizontal plane in a
flightworthy position, if they were capable of transmitting flight loads
to the hindlimb skeleton, and if they were held stationary behind a
flapping forelimb wing, then they did help generate thrust.

All the best,