Which multi-rotor configuration utilizes vectored thrust to control the yaw axis?

The tricopter configuration is distinguished by its use of vectored thrust for controlling the yaw axis, making it unique among the multi-rotor configurations. In a tricopter, which has three rotors, the rear rotor is typically mounted on a tilting mechanism that can pivot from side to side. By adjusting the pitch angle of this rear rotor, the tricopter can provide differential thrust, allowing it to efficiently control yaw. This method enables precise control over the rotational motion of the drone, facilitating smoother turns and improved maneuverability.

In contrast, configurations like the quadcopter, hexacopter, and octocopter typically rely on changing the speed of individual rotors to achieve yaw control. While they may also have effective yaw capabilities, they do not utilize vectored thrust in the same manner, making the tricopter's design distinct in this aspect.