A rotary drive assembly is provided. The assembly includes a tip hinge box, a body hinge box pivotably coupled to the tip hinge box, a rotary actuator positioned within the body hinge box, and a linkage mechanism coupled between the rotary actuator and the tip hinge box, the linkage mechanism including a first linkage fixedly coupled to the rotary actuator, and a second linkage coupled between the first linkage and the tip hinge box, wherein rotation of the rotary actuator causes the tip hinge box to rotate relative to the body hinge box.