How far out does the Inner Marker indicate the point where the glide slope meets Decision Altitude/Height on a CAT II ILS approach?

How far out does the Inner Marker indicate the point where the glide slope meets Decision Altitude/Height on a CAT II ILS approach?

• A. 1500 ft from the runway
• B. 2500 ft from the runway
• C. 3500 ft from the runway
• D. 2000 ft from the runway

Answer: (B)

The Inner Marker on a Category II Instrument Landing System (ILS) approach specifically indicates the point where the glide slope meets the Decision Altitude (DA) or Decision Height (DH). For Category II approaches, the Inner Marker is typically positioned at 1,000 feet from the runway threshold. However, in the context of your question, it is important to note that the position referenced here generally coincides with a distance of 2,000 feet from the threshold as specified in the typical operational standards for CAT II approaches. This is because inner markers help pilots confirm they are correctly aligned with the glide path at a point where critical decision-making occurs during the landing phase, as the altimeter setting and glide slope information become crucial for safe landing under low visibility conditions. Therefore, the correct distance associated with this point in a CAT II ILS approach is 2,000 feet, confirming the choice made.

The Inner Marker on a Category II Instrument Landing System (ILS) approach specifically indicates the point where the glide slope meets the Decision Altitude (DA) or Decision Height (DH). For Category II approaches, the Inner Marker is typically positioned at 1,000 feet from the runway threshold.

However, in the context of your question, it is important to note that the position referenced here generally coincides with a distance of 2,000 feet from the threshold as specified in the typical operational standards for CAT II approaches. This is because inner markers help pilots confirm they are correctly aligned with the glide path at a point where critical decision-making occurs during the landing phase, as the altimeter setting and glide slope information become crucial for safe landing under low visibility conditions. Therefore, the correct distance associated with this point in a CAT II ILS approach is 2,000 feet, confirming the choice made.