What is a useful technique during landing if visibility is impaired due to icing?

Executing a forward slip is a useful technique during landing if visibility is impaired due to icing because it allows the pilot to control the aircraft's descent path while maintaining a good horizon view. When visibility is compromised, a forward slip can help realign the aircraft with the runway, providing the pilot with better situational awareness and improving the chances of a safe landing. This maneuver involves banked turns while maintaining straight flight, effectively allowing the pilot to control the descent without compromising speed or needing to change the aircraft configuration significantly.

Using flaps to increase lift may seem advantageous, but in icing conditions, flaps can induce more drag and alter the airflow over the wings, which could lead to a stall if not managed carefully. Performing a go-around can be a safe option, especially if landing conditions appear unsafe; however, it does not directly address the immediate issue of impaired visibility. Maintaining altitude until clearer visibility returns is a conservative tactic but does not facilitate the landing process when visibility is critically low. Therefore, employing a forward slip is the most proactive approach in this scenario.