Garmin DA40 GPS Receiver User Manual


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Garmin G1000 Pilot’s Guide for the Diamond DA40/40F
190-00592-06 Rev. A
336
HAZARD AVOIDANCE
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
FIVE-HUNDRED AURAL ALERT
The purpose of the aural alert message “Five-hundred” is to provide an advisory alert that the aircraft is 500
feet above terrain. When the aircraft descends within 500 feet of terrain, the aural message “Five-hundred” is
generated. There are no display annunciations or pop-up alerts that accompany the aural message.
NEGATIVE CLIMB RATE AFTER TAKEOFF ALERT (NCR)
The Negative Climb Rate (NCR) After Takeoff alert (also referred to as “Altitude Loss After Takeoff”)
provides alerts when the system determines the aircraft is losing altitude (closing upon terrain) after takeoff.
The aural message “Don’t Sink” is given for NCR alerts, accompanied by an annunciation and a pop-up terrain
alert on the display. NCR alerting is only active when departing from an airport and when the following
conditions are met:
•Heightabovetheterrainislessthan700feet
•Distancefromthedepartureairportis2nmorless
•Headingchangefromthedepartureheadingislessthan110degrees
Figures 6-80 and 6-81 show the NCR alerting parameters as defined by TSO-C151b.
Figure 6-80 Negative Climb Rate (NCR) Altitude Loss
0
100
200
300
400
500
600
700
800
900
1000
0 20 40 60 80 100 120 140
Altitude Loss (Feet)
Height Above Terrain (Feet)
“DON’T SINK”
or
“TOO LOW, TERRAIN”
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