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Yellow and Red Hatched Lines on my IFD Map
When flying lower altitudes, you may see red or yellow hatched lines on the map that look like this: This is called Terrain Awareness (TA) and is a graphical representation of aircraft height above surrounding terrain and obstacles, shown as colored overlays on the map. It is for general situational awareness …
Explanation of FLTA (Forward Looking Terrain Alerting)
FLTA alerting is triggered by either a projected imminent impact with terrain or obstacle or reduced terrain and obstacle clearance. Projected imminent impact with terrain occurs when the aircraft flight path is projected to intersect with terrain up to 3.0nm (yellow caution) or up to 1.5nm (red warning) in front of …
