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When an approach, departure, or arrival is loaded into the active flight plan, a set of approach, departure, or arrival waypoints is inserted into the flight plan, along with a header line showing the title of the selected instrument procedure. The original en route portion of the flight plan remains active, unless the instrument procedure is activated. This may be done either when the procedure is loaded or at a later time.
Flight plans can also be stored with an approach, a departure, or an arrival. Note that the active flight plan is erased when the system is turned off. Also, the active flight plan is overwritten when another flight plan is activated. When storing flight plans with an approach, a departure, or an arrival, the G1000 uses the waypoint information from the current database to define the waypoints. If the database is changed or updated, the G1000 System automatically updates the information, provided the procedure has not been modified. Should an approach, departure, or arrival procedure no longer be available, the flight plan becomes locked until the procedure is deleted from the flight plan.
C
an “slant Golf” (“/G”) be filed using the G1000?
“/G” may be filed for a flight plan. The G1000 System meets the requirements of TSO-C129 Class A1 or A2 installation. GPS approaches are not to be flown with an expired database. See the approved Airplane Flight Manual (AFM) as well as the Aeronautical Information Manual (AIM) for more information.
What does the OBS Softkey do?
The OBS Softkey is used to select manual sequencing of waypoints. Activating OBS mode sets the current active-to waypoint as the primary navigation reference and prevents the system from sequencing to the next waypoint in a flight plan. When OBS mode is cancelled, automatic waypoint sequencing is continued, and the G1000 automatically activates the next waypoint in the flight plan once the aircraft has crossed the present active waypoint.
190-00494-02 Rev. B Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS EICAS AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE AFCS ADDITIONAL
FEATURES APPENDICES INDEX
521
Appendix D
Normal (OBS not activated)• Automatic sequencing of waypoints • Manual course change on HSI not possible • Always navigates ‘TO’ the active waypoint• Must be in this mode for final approach courseOBS• Manual sequencing - ‘holds’ on selected waypoint• Manually select course to waypoint from HSI• Indicates ‘TO’ or ‘FROM’ waypoint• Cannot be set for final approach course or published holding patterns
When OBS mode is active, the G1000 allows the pilot to set a desired course to/from a waypoint using the CRS/BARO Knob and HSI (much like a VOR).
The most common application for using the OBS Softkey is the missed approach. The G1000 suspends automatic waypoint sequencing (indicated by a ‘SUSP’ annunciation placed on the HSI) when the missed approach point (MAP) is crossed. This prevents the G1000 from automatically sequencing to the missed approach holding point (MAHP). During this time, the OBS Softkey designation changes to SUSP. Pressing the SUSP Softkey reactivates automatic waypoint sequencing. The OBS Softkey then resumes its normal functionality.
Why does the G1000 not automatically sequence toto the next waypoint?
The G1000 only sequences flight plan waypoints when automatic sequencing is enabled (i.e., no “OBS” or ‘SUSP’ annunciation). For automatic sequencing to occur, the aircraft must also cross the “bisector” of the turn being navigated. The bisector is a line passing through the waypoint common to two flight plan legs at an equal angle from each leg.
H
ow can a waypoint be skipppped in an apppproach, a departure, or an arrival?
The G1000 allows the pilot to manually select any approach, departure, or arrival leg as the active leg of the flight plan. This procedure is performed on the MFD from the Active Flight Plan Page by highlighting the desired waypoint and selecting the ACT LEG Softkey then the ENT Key to approve the selection. The GPS then provides navigation along the selected flight plan leg.
When does turn anticipation begin?
The G1000 smooths adjacent leg transitions based on a normal 15° bank angle (with the ability to roll up to 30°) and provides three pilot cues for turn anticipation:
• A waypoint alert (‘Next DTK ###° in # seconds’ or ‘Next HDG ###° in # seconds’) appears on the PFD 10 seconds before the turn point and flashes as it counts down to zero.
• A flashing turn advisory (‘Turn [right/left] to ###° in # seconds’) appears on the PFD 10 seconds before the turn and flashes as it counts down to zero. ‘Turn [right/left] to ###° now’ or ‘Next [DTK/HDG] to ###° now’ is displayed when the pilot is to begin the turn and the HSI (GPS mode) automatically sequences to the next DTK or HDG value.
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Cessna Citation Mustang Pilot’Guide 2(82)
