Which ILS category typically includes an inner marker and specific RVR criteria?

Which ILS category typically includes an inner marker and specific RVR criteria?

• A. CAT I
• B. CAT II
• C. CAT III
• D. None

Answer: (B)

The concept here is that marker beacons near the runway are used to provide precise cues as you close in on landing, especially when visibility is reduced. The inner marker is a specific beacon located close to the runway threshold and is associated with precision approaches that require tighter distance information and stricter visibility minima. This feature—an inner marker paired with explicit, lower RVR criteria—is most characteristic of Category II approaches. Category II procedures are designed for lower visibility than Category I and rely on additional cues and defined Runway Visual Range minima to allow a safe continuation to landing. The inner marker helps pilots verify their exact position on the final approach as they approach decision altitude and the runway. In contrast, Category I approaches generally do not depend on an inner marker, and Category III approaches, which aim for even lower minima or zero DH, typically rely more on advanced automation and may not use the inner marker. So the combination described fits Category II best.

The concept here is that marker beacons near the runway are used to provide precise cues as you close in on landing, especially when visibility is reduced. The inner marker is a specific beacon located close to the runway threshold and is associated with precision approaches that require tighter distance information and stricter visibility minima.

This feature—an inner marker paired with explicit, lower RVR criteria—is most characteristic of Category II approaches. Category II procedures are designed for lower visibility than Category I and rely on additional cues and defined Runway Visual Range minima to allow a safe continuation to landing. The inner marker helps pilots verify their exact position on the final approach as they approach decision altitude and the runway.

In contrast, Category I approaches generally do not depend on an inner marker, and Category III approaches, which aim for even lower minima or zero DH, typically rely more on advanced automation and may not use the inner marker. So the combination described fits Category II best.