Carburettor Icing Risk Approximator

The Carburettor Icing Risk Approximator provides an estimation of the probability of carburettor icing during flight. It is important to note that this tool offers an approximation only, as carburettor icing is influenced by various factors beyond the scope of this calculation. Factors such as the position of the carburettor in the aircraft, the specific engine design, and the operational conditions can all affect the likelihood of carburettor icing.

Conditions Leading to Carburettor Icing

Carburettor icing occurs when moist air passes through the carburettor venturi, causing a drop in temperature that can lead to ice formation. This phenomenon can affect engine performance and, in severe cases, cause engine failure. The risk of carburettor icing is highest in certain temperature and humidity conditions as depicted by the computed chart.

Risk Approximation

The Carburettor Icing Risk Approximator uses the temperature and dew point to estimate the risk level, categorised as follows:

Remember, the Carburettor Icing Risk Approximator is a guide and should be used in conjunction with other safety measures and checks to ensure safe flight operations.