What is the effect of type IV anti-icing fluid if it is applied incorrectly?

Type IV anti-icing fluid is designed to form a protective layer on aircraft surfaces, effectively preventing ice from adhering to the wings and other critical surfaces. When applied correctly, it offers optimal performance by creating a barrier that inhibits ice formation. However, if type IV fluid is not applied according to the recommended procedures or is inadequately distributed, several issues can arise, leading to fluid failure.

Fluid failure means that the anti-icing properties of the Type IV fluid are compromised, which can result in the formation of ice or frost on the aircraft surfaces instead of preventing it. This situation is particularly dangerous as it can significantly impair the aircraft's aerodynamics, leading to increased drag, reduced lift, and ultimately compromising flight safety.

As for the other choices, increased drag may occur if the fluid is applied incorrectly, but it directly stems from the aforementioned fluid failure rather than being a primary effect. Faster polymerization is not a concern in the context of improper application of the fluid; it's more about the fluid's drying time and effectiveness. Improved safety is contradictory to the implications of fluid failure since improper application can lead to increased risks during flight.