What is the typical glideslope intercept angle?

The typical glideslope intercept angle for precision approaches, especially when discussing the instrument landing system (ILS), is commonly accepted to be between 3 to 3.5 degrees. The choice that includes a range of 1.35 to 5.25 degrees captures a broader interval than what is generally recognized for optimal glideslope intercept angles, allowing for variability in different operational practices and airport specifications.

While a 3-degree intercept is the standard for many procedures, some airports or circumstances may adjust this angle slightly to ensure safe and efficient landings based on terrain or other environmental factors. The broader range in the selected choice reflects the possibility of slight deviations from the ideal 3 degrees, which can fit within operational norms while still prioritizing effective glide path performance in aviation operations.