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EXAMPLE 1— GPS ONLY APPROACH
Example 1 uses the GPS approach into Frederick Municipal Airport (KFDK) and
illustrates the basic sequence of selecting and flying a GPS approach, and flying
directly to a missed approach holding point. Please refer to the previous sections of
this chapter for expanded keystroke instructions.
1. Select the destination airport (KFDK) using the
D
key, or create and activate a route
to the destination airport.
2. Select the desired approach (gps rw05) from the approach select page. The GNC 300
will automatically select MRB as the IAF since it is the only IAF available.
3. Confirm that the GPS APR switch indicates an ‘ARM’ status 30 nm from the airport. The
CDI will automatically begin a smooth transition from the 5.0 nm to the 1.0 nm scale.
4. Enter the current altimeter setting of KFDK on the position page when prompted with the
‘Need pres- press NAV’ message.
5. Fly the approach. The GPS will provide navigation to each approach waypoint in sequence:
• MRB (Initial Approach Fix)
• SUSII
• BAKEE (Final Approach Fix)
• MYRTA (Missed Approach Point)
• RUSSY (Missed Approach Holding Point)
6. Set the HSI course to DTK at each waypoint. Confirm that the GPS APR switch indicates
an ‘ACTV’ status within 2 nm of the FAF. The CDI will automatically transition from the 1.0
nm to 0.3 nm scale as you approach the FAF, and the unit will warn you if RAIM is not
available for your approach.
7. Complete the approach by landing or perform the missed approach procedure.
8. For direct navigation guidance to the missed approach holding point, press
D
followed by
E
after crossing the MAP.
85
APPROACH NAVI-
GATION
VOR/GPS Overlay
SECTION
6
APPROACH NAV
GPS Approach Example
DO NOT USE FOR NAVIGATION
SUSII
MISSED APPROACH
IAF
MARTINSBURG
3000
120°
(16.5)
SUSII
2700
048° (2.5)
2000
048° (2.5)
2.5 NM FROM BAKEE
(FAF)
BAKEE
(MAP)
MYRTA
0
4
8
°
048
°
2
2
8
°
RUSSY
2.5 NM 2.5 NM 3.8 NM 1.2
SUSII
BAKEE
2.5 NM FROM
BAKEE
MYRTA
MAP
MISSED APPROACH
CLIMB TO 3000 DIRECT
RUSSY AND HOLD
3000
2700
2000
3.10°
048
°
GPS RWY 5
FREDERICK MUNI(FDK)
300 7/14/98 8:50 AM Page 85