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Old 02-04-2004, 02:51 PM
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DesignMan
 
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Default RE: Toucan flyers? Anybody out there?

If you do build a Toucan, consider either getting the Dreamcatcher kit (2 sizes) or changing the airfoils. After a few prototypes, I found that using a SD8020 on the root and SD7090 on the tip made a huge difference in performance. Keep the datum line the same, and you effectively get a bit of canard effect from the lifting tip, and need a lot less reflex at the root to get stability. Way reduced drag.

Finally, I prefer separate ailerons and elevators, using the inner 1/4 of the span for elevator driven by a Y-connector from one servo. Then servos in the wings for the ailerons.

-Larry