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                           MurphyMoose-List Digest Archive
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                     Total Messages Posted Mon 06/12/06: 1
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Today's Message Index:
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     1. 05:33 PM - Re: Elevator VG's  (Greg Young)
 
 
 
________________________________  Message 1  _____________________________________


Time: 05:33:12 PM PST US
Subject: RE: MurphyMoose-List: Elevator VG's
From: Greg Young <gyoung@cs-sol.com>

Just a SWAG but I'd say it's to keep the flow attached to the elevator at h
igh deflection angles. The effect would be more analogous to the effect of 
slotted flaps. In this case it is increasing the effectiveness of full up e
levator. 

Greg


From: Ted Waltman
Sent: Wed 06/07/06 10:47 PM
Subject: RE: MurphyMoose-List: Elevator VG's


I'm no aerodynamicist, but my guess is that is the critical spot where the 
boundary layer needs to be energized, whereas on the wing the critical lift
 area is near the front?????

Anybody know the engineering behind the placement?

Ted


From: owner-murphymoose-list-server@matronics.com [mailto:owner-murphymoose
-list-server@matronics.com] On Behalf Of Scott Aldrich
Sent: Wednesday, June 07, 2006 8:58 PM
Subject: MurphyMoose-List: Elevator VG's


Why do most guys put the stab/elevator VG's back at the hinge line (on the 
bottom of stab of course) and not more forward like on the wing?  Is there 
some guidance on this?  It seems to me it would be like putting the wing vg
's back just in front of the flaps or aileron hinge?  Trying to decide wher
e to put them.

Thanks,
Scott
Moose 174