How many degrees does a standard VASI glide slope typically represent?

A standard VASI (Visual Approach Slope Indicator) glide slope typically represents a glide path of 3 degrees. This slope is designed to provide pilots with a visual aid during the approach to a runway, ensuring they maintain an appropriate descent path for landing. A 3-degree glide slope is widely accepted as ideal for approach and landing because it balances between a comfortable descent rate and a reasonable distance from the runway threshold, reducing the risk of undershooting or overshooting the landing area.

Understanding this glide slope is crucial for pilots, as flying at the correct angle helps ensure safety and efficiency during the landing phase. Different glide slope angles are used for various types of approaches, but 3 degrees remains the standard due to its effectiveness in most conditions.