RE: Flying Wing -- 76" wingspan -- Maiden Flight Today
Paul,
Sorry, I mis-understood what you were asking.
Yes, through the use of clamshell drag rudders your can add yaw control to the wing. The drag rudders are are toward the tip of each wing. They open up and the wing slows down allowing the other wing to travel faster and yaw. Attached is a picture of a drag rudder.
Adding drag rudders does add some complexity. The ends of the wing get pretty thin and housing a servo small enough to fit and strong enough to operate the drag rudders is an interesting project. On larger wings (12 foot and above) this is not an issue.
So yes, yaw control can be added.
Jeff