This tutorial covers the propeller Tangential parameter. This parameter translates the blade section normal to the blade construction axis within the propeller plane of rotation either with or against the direction of rotation. Tangential differs from Sweep in that Sweep is a rotation of the blade section about the propeller thrust axis while Tangential is a translation in a straight direction normal to the blade construction axis. For example, a propeller thrusting in the -X direction exhibits Tangential shifts in the +/- Z direction. For more information about how to manipulate these curves, please refer to the Propeller Blade Control Curve Interface page.