Pilot's Guide

190-00663-02 Rev. B
Garmin G1000 Pilot’s Guide for the Hawker Beechcraft C90A/GT/GTi
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AUTOMATIC FLIGHT CONTROL SYSTEM
VERTICAL NAVIGATION MODES (VPTH, ALTV)
NOTE: VNV is disabled when parallel track or Dead Reckoning Mode is active.
NOTE: The Selected Altitude takes precedence over any other vertical constraints.
Vertical Navigation (VNV) flight control is available for enroute/terminal cruise and descent operations any
timethatVNVightplanningisavailable.RefertotheGPSNavigationSectionformoreinformationonVNV
flight plans. Conditions for availability include, but are not limited to:
•TheselectednavigationsourceisGPS.
•AVNVightplan(withatleastonealtitude-constrainedwaypoint)orverticaldirect-toisactive.
•VNVisenabled(VNV ENBLSoftkeypressedontheMFD).
•Crosstrackerrorisvalidandwithincertainlimits.
•Desired/actualtrackarevalidortrackangleerroriswithincertainlimits.
•TheVNVTargetAltitudeoftheactivewaypointisnomorethan250ftabovethecurrentaircraftaltitude.
The flight director may be armed for VNV at any time, but no target altitudes are captured during a climb.
The Command Bars provide vertical profile guidance based on specified altitudes (entered manually or loaded
from the database) at waypoints in the active flight plan or vertical direct-to. The appropriate VNV flight control
modes are sequenced by the flight director to follow the path defined by the vertical profile. Upon reaching
thelastwaypointintheVNVightplan,theightdirectortransitionstoAltitudeHoldModeandcancelsany
armed VNV modes.
VERTICAL PATH TRACKING MODE (VPTH)
NOTE: If another vertical mode key is pressed while Vertical Path Tracking Mode is selected, Vertical Path
Tracking Mode reverts to armed.
NOTE: Pressing the CWS Button while Vertical Path Tracking Mode is active does not cancel the mode. The
autopilot guides the aircraft back to the descent path upon release of the CWS Button.
Whena verticalprole(VNV ightplan) isactive andthe VNVKey ispressed,Vertical PathTracking
Modeisarmedinpreparationfordescentpathcapture.‘VPTH’(or‘/V’whenGlidepathorGlideslopeMode
isconcurrentlyarmed)isannunciatedinwhiteinadditiontopreviouslyarmedmodes.Ifapplicable,the
appropriate altitudecapturemodeisarmedforcaptureofthenextVNV Target Altitude (ALTV) or the Selected
Altitude (ALTS), whichever is greater.
Figure 7-17 Vertical Path Tracking Armed Annunciations