Old 06-03-2016, 10:21 PM
  #19  
fhhuber
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All are possible contributing factors.

The airfoil choice, washout and sweep angle interact with each other. For a different airfoil that's a great sweep angle. Add washout and it would be fine with that airfoil...
It appears really close to the sweep of the Nitroplanes Falcon 120, (BVM Bobcat clone) which can have the booms and horizontal DELETED if you relocate the vertical stabs. That plane has a near symmetrical airfoil. Programming the ailerons for elevon works even with the booms and horiz stab still there and the elevons more pitch authority than the OEM elevator.

Winglet angle is a bit if a trick... You can mount the winglets in a manner that adds some downforce, replacing the washout.
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