original wing. area added at trailing edge; dihedral too. stability improved a little.

DSCF1760.jpg - 297.0 KB - Views: 143
Posted by: phil alvirez on Jan 12, 2013 02:12 PM
original wing. area added at trailing edge; dihedral too.
stability improved a little.
 
DSCF1760.jpg
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DSCF1754.jpg
new wing with undercambered airfoil, polyhedral; ailerons. much better, although ailerons were not needed.
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DSCF1756.jpg
naca 6409 wing airfoil, larger area, for improved thermaling.
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