Garmin G1000 King Air C90GT - Manual (Page 368)

Garmin G1000 Pilot’s Guide for the Hawker Beechcraft C90A/GT 190-00663-01 Rev. A 354
HAZARD AVOIDANCE
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL FEA
TURES
APPENDICES
INDEX
EXCESSIVE DESCENT RATE ALERT
The purpose of the Excessive Descent Rate (EDR) alert is to provide suitable notification when the
aircraft is determined to be closing (descending) upon terrain at an excessive speed. Figure 6-79 shows the
parameters for the alert as defined by TSO-C151b.
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
0
10
00
20
00
30
00
40
00
50
00
60
00
70
00
80
00
90
00
10
00
0
11
00
0
12
00
0
Descent Rate (FPM)
Height
Above
Terr
ain (F
eet)
Caution:
“SINK RA
TE”
Warning: “PULL UP”
Figure 6-79 Excessive Descent Rate Alert Criteria
f
orWarD
l
ooking
t
errain
a
voiDance
Reduced Required Terrain Clearance (RTC) and Reduced Required Obstacle Clearance (ROC)
alerts are issued when the aircraft flight path is above terrain, yet is projected to come within the minimum
clearance values in Figure 6-80. When an RTC alert is issued, a potential impact point is displayed on the
TAWS-B Page.
Imminent Terrain Impact (ITI) and Imminent Obstacle Impact (IOI) alerts are issued when the
aircraft is below the elevation of a terrain or obstacle cell in the aircraft’s projected path. ITI and IOI alerts are
accompanied by a potential impact point displayed on the TAWS-B Page. The alert is annunciated when the
projected vertical flight path is calculated to come within minimum clearance altitudes in Figure 6-80.