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Re: Of course nonavian dinosaurs could fly - duh
Ground effect follows the Biot-Savart law and thus has no ceiling, though it
does become relatively inconsequential when HAG is much more than a
semi-span. Primary effect is a reduction in induced drag when close to the
ground, thereby requiring relatively less power to maintain level flight.
----- Original Message -----
From: "evelyn sobielski" <email@example.com>
Sent: Sunday, September 27, 2009 8:10 AM
Subject: Re: Of course nonavian dinosaurs could fly - duh
The ground effect establishes a ceiling (perhaps a meter above ground)
that is tough to break from below - even if you could glide-hop a bit,
that does not mean that you were able to become free-flying (even
free-gliding), because as soon as you get out of the ground effect
"cushion", sustaining airborneness becomes suddenly much tougher.