What does an ILS Category I hold position indicate?

What does an ILS Category I hold position indicate?

• A. It indicates a hold for taxiway intersection.
• B. It indicates a category I runway-holding position at the threshold of a runway.
• C. It indicates distance remaining on the runway.
• D. It indicates an exit sign.

Answer: (B)

An ILS Category I hold position marks the boundary of the ILS critical area to protect the instrument landing system during Category I approaches. It tells you to stop short of the runway at that point so the localizer and glideslope signals aren’t disturbed by taxiing aircraft or other movements. This boundary is placed near the threshold, ensuring that once you’re cleared to proceed, you can enter the runway without compromising the ILS signals used for precision landing. This isn’t about taxiway intersections, distance remaining, or exit signs, which is why the other options don’t fit.

An ILS Category I hold position marks the boundary of the ILS critical area to protect the instrument landing system during Category I approaches. It tells you to stop short of the runway at that point so the localizer and glideslope signals aren’t disturbed by taxiing aircraft or other movements. This boundary is placed near the threshold, ensuring that once you’re cleared to proceed, you can enter the runway without compromising the ILS signals used for precision landing.

This isn’t about taxiway intersections, distance remaining, or exit signs, which is why the other options don’t fit.