In terms of de-icing, what does the term "effective lift" refer to?

In the context of de-icing, the term "effective lift" specifically refers to the condition of an aircraft being free from ice or snow. When an aircraft is clear of ice or snow, its wings can generate lift more efficiently, allowing it to achieve and maintain flight. Ice accumulation on wings disrupts airflow and can negatively impact the aerodynamic properties necessary for lift. Thus, ensuring that the aircraft is free from ice is crucial for effective lift during takeoff and landing, as well as overall flight performance. This highlights the importance of de-icing practices in aviation safety and operational efficiency.