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From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [LML] Re: Wing Loading mysteries
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Date: Tue, 14 Jan 2003 20:58:27 -0500
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Posted for "Christopher Zavatson" <Christopher.Zavatson@udlp.com>:

Scott,
Don't forget about the pitching moment about the MAC.  Cm is fairly
small for our airfoil (-.05) and the reflex will reduce it further but
it still amounts to a significant down force requirement for the tail.
Chris Zavatson

<<The forward CG is at 27.7", the center of lift (CL) is 25% MAC (mean
aerodynamic chord) which is about 30" and the tail MAC at about 165. 
Assume the airplane is balanced on the center of lift, the forward down force
is 2.3x1880 =  4680 / 135 = 35 pounds of down force on the tail.  >>