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Old 06-04-2007, 09:02 AM
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Rocketman_
 
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Default RE: KATANA XL - new release


ORIGINAL: bbagle1

Any thoughts on optimum cg for 3d?
My CG is located at 6 3/8 inches (suggested range is 5.25 to 6 inches). It requires a little down elevator to keep it level during inverted flight and the tail does not drop during slow landing approaches. My thought is that you have to mess this up a little by moving the CG farther back (move wing forward) in order to achieve optimum 3D flight.

The picture shows my wing location and equipment layout. The model weighs 10 pounds with an OS 1.60, Bisson Pitts muffler, Perry VP-30 pump, APC 18x6W prop and one 2600 mah Li-Ion battery w/6 volt regulator.

If someone has been bold enough to move the CG beyond 6 3/8 inches I'd like to know what the results were.
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