What is the appropriate carburetor heat position before landing?

Using carburetor heat before landing is essential for preventing carburetor icing, which can lead to a reduction in engine power and potentially dangerous situations. When approaching for landing, the engine is typically operating at a lower power setting, where the risk of icing increases due to the cooling effect of fuel vaporization.

Setting the carburetor heat to the "On" position allows hot air to flow into the carburetor, helping to melt any ice that may have formed and ensuring that the engine receives adequate fuel-air mixture for proper operation. This is particularly important in conditions of high humidity or low temperatures, where the likelihood of icing is greater.

In summary, placing the carburetor heat "On" before landing mitigates the risk of icing and enhances engine performance, contributing to a safer landing procedure.