On Sunday, February 16, 2014 10:46:32 AM UTC-6, JJ Sinclair wrote:
Yep, the MAC must be moved inboard parallel the wing center line, not parallel to the leading edge.

Well, generally true for most glider configurations, but not quite. It does not project in along the centerline of the wing. It projects straight in, perpendicular to fuselage center line. If you projected it inboard along the centerline of a forward or aft swept wing, you would be just as bad off as the the guy who followed the leading edge on a basically straight wing.. HP wings are generaly straight along their spar, which is typically at about 40% chord.

Steve Leonard