5/25/2023 0 Comments Localizer approachThis moment is also marked by a green G/S indicator above the attitude indicator. Once it hits the middle the aircraft has captured the glideslope and will begin an automatic descent. The closer you get to the point where that diagonal beam intersects with your flight path the more the diamond moves down to the center. Ideally the diamond starts out above the center of its range, which means that you are still below the glidepath, because you are still too far away and the diagonal beam of the glideslope passes above your aircraft. Just like the localizer is supposed to keep the aircraft centered on its horizontal approach to the runway the glideslope is supposed to do the same for the vertical path and the stable descent to the ground. Around that time or before you will also notice a second diamond on the right, between the attitude indicator and the altitude tape. This also when you are supposed to engage the approach mode by pressing APP. Instead of the white VOR/LOC indication above the attitude indicator you will get a green indication now. The aircraft has captured the localizer and will start to automatically move itself into the right approach path to the runway by centering the diamond below the attitude indicator. When you get closer the diamond will turn magenta and once you are close enough the VOR/LOC mode that you armed before will engage automatically. The autopilot will now be ready to capture the localizer, the center of the ILS directional beam that is lined up with the runway and that is supposed to guide the aircraft to it. This is a good time to press the VOR/LOC button on the MCP. That means that you receive signals from the ILS antenna but that you aren't properly in range yet. When you are about to enter the final approach path you will close in on the localizer beam of the runway (the green wedges in the FSX map that some airports have): You will see that a diamond will come alive at the bottom of the attitude indicator but instead of being magenta it is white and not filled.
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