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4 - FLIGHT PLANS
75
190-00357-00 Rev E
Closest Point of FPL
Closest Point of FPL? calculates the bearing and
closest distance at which a flight plan passes from
a reference waypoint. May also be used to create a
new user waypoint along the flight plan at the loca-
tion closest to a chosen reference waypoint.
To determine the closest point where the ac-
tive flight plan passes a particular waypoint,
use the “Closest Point of FPL?” option. A
waypoint can be added to the flight plan at
the calculated location.
To determine the closest point, along the active
flight plan, to a selected waypoint:
1. From the Active Flight Plan Page, press
MENU to display the Active Flight Plan Page
Options.
2. Select the “Closest Point of FPL?” option from
the Active Flight Plan Page Options and press
ENT.
3. A window appears with the reference waypoint
field highlighted. Use the small and large
right knobs to enter the identifier of the refer-
ence waypoint and press ENT.
4. The 500W-series unit displays the bearing
(BRG) and distance (DIST) to the closest point
along the flight plan, from the selected refer-
ence waypoint. To create a user waypoint at
this location and add it to the flight plan,
highlight “Load?” and press ENT. The name
for the new user waypoint is derived from the
identifier of the reference waypoint.
Parallel Track
Parallel Track? allows you to create a parallel
course offset of 1 to 99 NM to the left or right of your
current flight plan. After setting a parallel track to your
current flight plan, a magenta parallel track line will be
drawn offset from the original by the selected distance.
The original course line will be drawn in white. The
aircraft will navigate to the parallel track course line.
When you reach the end of the flight plan, a
messagewillstate“ParalleloffsetterminatinginX
seconds”. The message will be given when the aircraft
reaches the offset distance from the end of the parallel
track. This will give the pilot sufficient time to inter-
cept the original course.
TO
WPT
FROM
WPT
North
BRG
Parallel Track Distance
Course
DTK
Offset
TO
WPT
Offset
FROM
WPT
Active Flight Plan Options