What methods are commonly used to remove rain from an aircraft windshield?

The commonly used methods to remove rain from an aircraft windshield include windshield wipers, a blast of air, or the application of a chemical rain repellent.

Windshield wipers are integral to ensuring visibility as they physically swipe across the glass to clear away water. A blast of air from the aircraft's environmental control systems can also help to keep the windshield clear by blowing away moisture, thus enhancing visibility during rain. Chemical rain repellents work by creating a hydrophobic surface on the windshield, allowing rain to bead up and flow off more easily, preventing the accumulation of water and improving visibility.

Together, these methods effectively address the challenge of maintaining a clear view through the windshield when flying in rainy conditions, making them essential components of an aircraft's safety and operational procedures.