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Posted by anukumar | Dec 26, 2012 @ 05:55 PM | 1,881 Views

I am planning to make a biplane with wingspan 90 cm. Since I have to maximize the payload to be lifted so I am using S1223 airfoil in both wings.
But the pitching moment is coming to be highly negative. Suggest some measures of how to increase the pitching moment of whole plane.
What about using the reflex airfoil in horizontal stablizer.
Reply asap...
Posted by anukumar | Oct 16, 2012 @ 11:55 AM | 2,552 Views
Wingspan - 1.9m
tapered wing
taper ratio= 0.5

RC T-tailed Gilder (2 min 27 sec)