Re: Pterosaur Track Show Bird-Like Landing

[Mike Habib <habib@jhmi.edu>]

True; hence my usage of the term "dynamic stall" - which would be an  
unsteady stall.  I originally took the term and that particular usage,  
if I remember, from Robert Dudley.

Cheers,

--Mike


Michael Habib
Assistant Professor of Biology
Chatham University
Woodland Road, Pittsburgh PA  15232
Buhl Hall, Room 226A
mhabib@chatham.edu
(443) 280-0181



On Aug 19, 2009, at 5:32 PM, jrc wrote:

> Keep in mind that none of these animals use a steady-state stall to  
> land. Can't generate a high enough lift coefficient that way.  All  
> are using unsteady effects and are not stalling in the sense that an  
> airplane stalls.
> JimC
>
> > Every pterosaur almost
> > assuredly used a dynamic stall before landing - bats do, birds do,  
> > and
> > all living unpowered vertebrate gliders (like Draco lizards and
> > gliding squirrels) do so, as well.