Mark wrote: "Actually, the dihedral isn't measured from the bottom of the spar, 
generally 
speaking.  It's more of a centerline angle thing,"
 
That's what I was thinking too, it's based on the 'spar-centerline'.  
 
Also I believe another way to determine that value is to take the average of: 
"top of the spar dihederal" and "bottom of the spar dihederal".   For example 
if your (not really that smart) Smart-Level gave numbers like Gunars below and 
you averaged them...  
 
( Dihedral at top of wing: 2.21 deg......plus....Dihedral at bottom of wing:  
3.64 deg.) / 2 = 2.925 deg.  
 
Compares well with  "Dihedral at wing center: 2.93 deg."
 
Tom


--- On Wed, 6/30/10, Gunnar Olsen <gun...@online.no> wrote:
From: Gunnar Olsen <gun...@online.no>
Subject: Re: KR> Dihedral
To: "KRnet" <kr...@mylist.net>
List-Post: krnet@list.krnet.org
Date: Wednesday, June 30, 2010, 5:24 AM



KR2 standard wing with RAF48 airfoil.

Dihedral at bottom of wing:  3.64 deg.
Dihedral at wing chord: 3.05 deg.
Dihedral at wing center: 2.93 deg.
Dihedral at top of wing: 2.21 deg.

;o) Gunnar


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