The Outer Marker is typically located at what distance from the runway threshold?

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Prepare for the ACE Airfield Operations Module 3 Test with a variety of interactive quizzes. Practice with multiple-choice questions that feature helpful hints and detailed explanations to ensure success on your exam!

Multiple Choice

The Outer Marker is typically located at what distance from the runway threshold?

Explanation:
In an ILS approach, markers along the localizer provide distance cues on the final approach. The Outer Marker marks a point farthest from the runway where you’re still on the published localizer path, giving you a timing cue before you descend on the glide slope. It is typically located about 4 to 7 nautical miles from the runway threshold, hence the correct distance. The marker is usually indicated by a blue light and the distinctive “OM” Morse identifier.

In an ILS approach, markers along the localizer provide distance cues on the final approach. The Outer Marker marks a point farthest from the runway where you’re still on the published localizer path, giving you a timing cue before you descend on the glide slope. It is typically located about 4 to 7 nautical miles from the runway threshold, hence the correct distance. The marker is usually indicated by a blue light and the distinctive “OM” Morse identifier.

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