Are icing conditions harmless?

• A. Yes
• B. No, icing is hazardous and potentially deadly
• C. It depends on altitude
• D. It depends on airspeed

Answer: (B)

Icing conditions are hazardous and potentially deadly. Ice on the wings disrupts the smooth airflow that generates lift, adds weight, and changes the wing’s shape, raising the stall speed and narrowing the flight envelope. That means a stall can occur more suddenly, sometimes with little warning, especially during turns or power changes. Ice can also form on propellers and engine intakes, reducing power, and on windshields or sensors, impairing visibility and instrument readings. These combined effects can lead to loss of control or an engine outage, making icing dangerous in real operating conditions. While altitude or airspeed can influence how severe icing is, they do not make it safe, and the risk exists across a range of conditions.