Garmin G1000H
™
Pilot’s Guide for the Bell 407GX
190-01255-00 Rev. A
340
HAZARD AVOIDANCE
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 HTAWS Page. The alert is annunciated when the
projected vertical flight path is calculated to come within minimum clearance altitudes in Figure 6-79.
Required Terrain Clearance
0
50
100
150
200
250
300
350
400
0
1
2
3
4
5
6
7
8
9
10
Distance From Runway (NM)
R
eq
ui
red
T
er
rai
n C
lear
an
ce (
FT
)
RTC Level (FT)
RTC Descending (FT)
Distance From Runway/Helipad (NM)
Required
Terr
ain Clear
ance (FT)
Required Terrain/Obstacle Clearance
Figure 6-79 FLTA Alert Minimum Terrain and Obstacle Clearance Values
In situations when reduced FLTA alerting sensitivity may be desired, such as in low-level operations or
during off-airport landings, HTAWS offers a Reduced Protection (RP) Mode. When RP Mode is enabled, the
following occur:
• RTC is reduced to a maximum of 125 feet when groundspeed is at least 60 knots; RTC is reduced to zero
feet at less than 60 knots.
• HTAWS reduces the distance of the projected flight path used to scan for terrain and obstacles.
• No aural or visual caution alerts will be issued.
When RP Mode is enabled, the system status annunciation ‘RP MODE’ is shown on the PFD and on the
HTAWS Page of the MFD.
Figure 6-80 Reduced Protection Mode Enabled
System Status Annunciation
Summary of Contents for G1000H
Page 1: ...G1000H Integrated Flight Deck Pilot s Guide Bell 407GX ...
Page 2: ......
Page 146: ...190 01255 00 Rev A Garmin G1000H Pilot s Guide for the Bell 407GX 134 AUDIO PANEL AND CNS ...
Page 518: ...190 01255 00 Rev A Garmin G1000H Pilot s Guide for the Bell 407GX 506 APPENDIX B Blank Page ...
Page 540: ...Garmin G1000H Pilot s Guide for the Bell 407GX 190 01255 00 Rev A I 6 INDEX Blank Page ...
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