Pilot's Guide

190-01255-01 Rev. A
Garmin G1000H
™
Pilot’s Guide for the Bell 407GX
61
FLIGHT INSTRUMENTS
HEADING PRESET MODE
HeadingPresetModeallowsAHRStocomputeheadingdatawithoutusingthemagneticsensingdevice.If
amagnetanomalyoccurs(eitherduetointerferenceormagnetometerfailure),andHeadingPresetModeis
available, an alert will be provided in the alerts window. The heading refence for this mode is a pilot-entered
value.
Activating Heading Preset Mode:
1) Select the PFD Softkey.
2) Select the SET HDG Softkey.
To change the heading value, press the HDG+ or HDG-Softkeyuntilreachingthedesiredvalue,orturnthe
HDGknobuntiltheSelectedHeadingBugreachesthedesiredvalue,andthenpushtheHDG SYNC Softkey.
WhileHeadingPresetModeisactive,“SET”isannunciatedwithintheheadingindicatoreld.Theheading
numeric values are displayed in cyan, indicating that the value may be modified by the pilot.
Figure 2-23 Heading Preset Mode
Heading Preset
Mode Softkeys
“SET”
Annunciation
HeadingPresetModewillstayactiveforeightminutes,however,theeight-minutetimeperiodis“reset”if
the heading value is changed within two minutes of activating the mode. The heading value can be changed
atanytimewhileHeadingPresetModeisactive,buttheeight-minutedurationisonly“reset”byheading
value changes made during the first two minutes that the mode is active.
HeadingPresetModemaybedeactivatedatanytimebypushingtheHPM OFFSoftkey,orthemodewill
automatically deactivate at the completion of the eight-minute time period. If the difference between the
current heading and the magnetic heading is less than ten degrees, the heading indicator will immediately turn
tothemagneticheading,the“SET”annunciationwillberemoved,andthenumericheadingwillturnfrom
cyantowhite.Ifthedifferencebetweencurrentheadingisgreaterthantendegrees,the“SET”annunciation
will changeto“ALN”(Figure 2-24), and the numericheadingdisplaywill turnyellow, indicating that it
isnot reliable.The headingindication willtransitiontothemagneticheading,at whichtime the“ALN”
annunciation will be removed and the numeric value will change from yellow to white.
Figure 2-24 Heading Alignment
“ALN”
Annunciation