Aileron-Rudder Interconnects and Flying Qualities

An interconnection between the roll and yaw control may function as a device for coordinating the two controls, or as a means for increasing the effective dihedral, or both. The coordinating function may be interpreted in terms of adjusting the overall level of aileron yaw; this can improve roll and yaw response to roll control inputs. The interconnect function of increasing effective dihedral is of questionable value, and some undesirable side effects might be avoided if it were not employed.