ORIGINAL: david.eschenbrenner
All wing aircraft with bell shaped lift distributions that have washout in the proper areas have no need for a rudder a good place for you to look is TWITT "The wing is the thing". It explanes why you do not need a rudder
The all wings that have the right design architecture will not need a rudder..
Birds do not have rudders becaue it is not needed....
when you say bell shaped lift, do you mean a reflexed airfoil?
and birds, dont they shift there CG around when they fly?