The Dragless Flight Control System for Flying Objects utilizes paired fins that
are mounted to rotate in opposite directions. When no lift is desired during the
object's flight, the fins are completely retracted into their housings that are
recessed into the body of the object. This minimizes the drag. The fins are set
to a maximum no-stall angle relative to the body axis of the flying object. To
provide lift and other flight controls, such as roll and yaw, the fins are selectively
exposed outside the exterior skin of the flying object by being rotated on their
axes, the two fins in a pair always being rotated in opposite directions. Varying
the amount of exposed area of the counter-rotating fins can generate lift effect
that is proportional to the exposed area and similar to that produced by the current,
permanently-extended standard rotational fins.