Tony;

Technically not an airfoil.  An airfoil is solid with free stream flowing
over the surfaces.  The interior of a duct, flow constrained and strongly
influenced by the opposing wall is quite another ball game.

Al G

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of tonyslongez@cox.net
Sent: Tuesday, January 12, 2010 8:52 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Scoops

can anyone shed some light? Is there an airfoil that makes up the scoop? and
if so can we use different airfoils to get the desired cooling results say
in a climb or unusual attitude. In other words can you stall the air going
into the scoop. Or am I way off base here?