RobRiley, "and a narrowing near the tip, as that 10-15% is wasted anyway
a cut off on a double elliptical or facsimile would place more area,
therefore lift toward the base lowering the CE"
Can you explain that a little more? A cut off on a double elliptical? I think you mean a Spitfire tip. Part of my dilemma is that with the symmetrical foils I am getting exactly the same lift at the tip.. And when the apparent wind kicks in I am going to get a higher angle of attack at the tip and even more lift.... Raising my CoE
Right now I am thinking a NACA 0024 airfoil at the base going down to a 0015 at the tip with vortex generators on either side at apx 30% of the chord and I believe the aerodynamic center is at 25%
Talador
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Posted by: taladorwood@yahoo.com.au
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