What are the four levels of ice accumulation in flight?

The four levels of ice accumulation during flight are categorized as Trace, Light, Moderate, and Severe. This classification system is used by pilots and meteorologists to describe the severity of ice build-up on the aircraft, which can significantly impact flight safety and performance.

• "Trace" indicates that ice accumulation is barely noticeable and generally poses little threat, often melting off as it forms.

• "Light" suggests a small amount of ice that could start to affect the aircraft's performance if not managed, but is not yet critical.

• "Moderate" indicates more significant accumulation that can adversely affect the aircraft's handling and aerodynamics, requiring careful attention.

• "Severe" reflects a substantial ice build-up that can heavily impact performance, necessitating immediate action to remove or manage the ice accumulation.

This classification helps pilots assess the risks associated with flying in icing conditions and make informed decisions regarding de-icing procedures and potential flight paths. Other provided options do not align with standard aviation terminology used for ice accumulation. For example, options like "Small, Medium, Large" or "Minimal, Light, Heavy" do not accurately reflect the established categories recognized in aviation contexts.