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Re: New bird /pterosaur flight paper in PLoS ONE
P.S. Note that I said nothing below that implied that those traveling
sailplanes were using thermal lift. For traveling, cloud streets and
microlift are far more effective. I believe you may have jumped to a
conclusion that sailplanes only fly by making use of thermal lift.
----- Original Message -----
From: "don ohmes" <email@example.com>
Sent: Wednesday, April 29, 2009 4:03 PM
Subject: Re: New bird /pterosaur flight paper in PLoS ONE
--- On Wed, 4/29/09, jrc <firstname.lastname@example.org> wrote:
Note that sailplanes with wingspans, wing areas, aspect
ratios, and gross weights similar to those of the largest
pterosaurs are repeatedly capable of soaring non-stop for
hundreds of kilometers on an average day, and they don't
have the ability to flap at all.
Actually, they cover that -- "The present study does not deny the
possibility that they (the large pterosaurs) might rely on warmed rising
air of thermals..."