As covered in minor detail in the Symmetry with Propellers tutorial, there are multiple ways that you can modify propeller symmetry. These applications are not limited to only traditional propellers but for any geometric shape that you wish to have both axial and planar symmetry about different points. In this example, we show how to create a reflected, counter-rotating propeller across the XZ plane and also how symmetry can be ineffective at producing left/right same-direction propellers. To accomplish such a feature, a copy of the primary propeller should be made and placed on the opposite side manually. For the purposes of actuator disk modeling, this left/right anti-symmetry isn’t an issue and the direction of propeller rotation may be simply altered with the RPM setting.