The reason the yo-yo de-spin was favored is because the unit does not require any calculations of initial angular velocity in order for the de-spin to halt the angular velocity. Rather, the only calculations required are the lengths of the two strings that wind around the airframe and the mass of the weights. | The reason the yo-yo de-spin was favored is because the unit does not require any calculations of initial angular velocity in order for the de-spin to halt the angular velocity. Rather, the only calculations required are the lengths of the two strings that wind around the airframe and the mass of the weights. |