Garmin 300XL Pilot's Manual And Reference page 103

EXAMPLE 3 – VOR/DME ARC OVERLAY APPROACH
Example 3 uses the VOR/DME RWY 21 approach into Topeka/Forbes Field Airport
(KFOE) and illustrates an approach based on a DME arc. Although DME arc approach-
es are not based on a direct course, the GNC 300XL will still provide approach
navigation guidance through the arc by constantly displaying your distance and
bearing from the DME reference navaid on the position page. To fly the arc, monitor
the distance displayed on the position page and manually adjust your heading to
maintain the course along the arc. When flying a DME arc, the GPS SEQ switch must
be set to the HOLD position to ensure proper CDI operation.
1. Select the VOR RW21 approach and select the D094G initial approach fix to fly the left
hand arc from the 094° radial. Thirty nautical miles from the airport, confirm that the GPS
APR switch indicates an 'ARM' status.
2. Fly towards the IAF (D094G). The GPS WPT annunciator will flash 15 seconds before you
reach the waypoint.
3. After crossing the IAF, set the GPS SEQ switch to the HOLD position.
4. Set the desired inbound course (205º) on the CDI/HSI.
N O
5. Press and rotate
DME navaid as the reference waypoint (on the bottom line) as long as your 'active to'
waypoint is part of the DME arc you are flying.
(continued on next page)
to display the position page. The position page will display the
APPROACH NAV
VOR/DME Arc
Example
VOR/DME RWY 21
TOPEKA/
FORBES FIELD (FOE)
IAF
TOPEKA
(IAF)
TOP
7
MISSED APPROACH
CLIMB TO 3000 VIA HEADING
240 AND TOP R-213 TO
ERASE 25 DME AND HOLD.
TOP TOP
ERASE
12 7
TOP 25
MISSED APPROACH
VORTAC
CLIMB TO 3000 VIA HEADING
240 AND TOP R-213 TO
ONE MINUTE 5 NM
ERASE 25 DME AND HOLD.
HOLDING PATTERN
DO NOT USE FOR NAVIGATION
SECTION
6
3000
205 (7)
(IAF)
2600
(7)
VORTAC
ONE MINUTE
HOLDING PATTERN
025
3000
205
2600
7 NM
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