At what temperature range does carburetor icing typically occur?

Carburetor icing can occur in specific temperature and humidity conditions, primarily when humidity levels are high. The temperature range of -6°C to 21°C is particularly relevant because it encompasses the conditions under which the phenomenon is most likely to be observed.

The presence of moisture in the air can contribute to the formation of ice in a carburetor, impacting engine performance. During this range, the combination of lower temperatures and the potential for high humidity creates ideal conditions for ice to form on the carburetor's internal components. This can lead to restrictions in airflow and fuel delivery, significantly affecting engine operation.

Other ranges provided do not cover the same breadth of conditions that are known to result in carburetor icing. The specified range, therefore, accurately identifies the most critical temperatures for pilots to be aware of when flying, as it correlates with the increased risk of this issue in real-world scenarios. Understanding this range is vital for taking preventive measures against engine performance issues during flight.