3D Connexion GNS 530(A) manual Unlighted Obstacle, Altitude

12.2 TERRAIN PAGE

See Section 3.5 for a complete description of the TERRAIN Page and its operation.

SECTION 12

TERRAIN

NOTE: If an obstacle and the projected flight path of the aircraft intersect, the display automatically zooms in to the closest potential point of impact on the TERRAIN Page.

TERRAIN Symbols

The symbols and colors in Figure 12-1 and Table

12-1 are used to represent obstacles and potential impact points on the TERRAIN Page. TERRAIN uses yellow (caution) and red (warning) to depict terrain information relative to aircraft altitude. Each color is associated with an alert severity level. Terrain graphics and visual annunciations also use these color assignments.

			Potential Impact Point
		Projected Flight Path		Terrain above or
				within 100 ft
100 ft	Threshold	Unlighted Obstacle		below the aircraft
				altitude (Red)

1000 ft

Terrain between 100 ft and 1000 ft below the aircraft altitude (Yellow)

Terrain more than 1000 ft below the aircraft altitude (Black)

Figure 12-1 Terrain Altitude/Color Correlation

Unlighted Obstacle

< 1000’	> 1000’
AGL	AGL

Obstacle Symbol

190-00181-00 Rev. E

Lighted Obstacle		Potential
< 1000’	> 1000’	Impact	Obstacle Location	Alert Level
		Points
AGL	AGL
			Obstacle above or within	WARNING
			100’ below current aircraft
				(Red)
			altitude
			Obstacle between 100’ and	CAUTION
			1000’ below current aircraft
				(Yellow)
			altitude
Table 12-1 Terrain/Obstacle Colors and Symbology
GNS 530(A) Pilot’s Guide and Reference				12-3