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ROUTE NAV
Copying Routes
CPA Function
SECTION
4
65
To copy a route:
1. Press
R
and use
O
to display the route catalog page.
2. Use
K
to display the route to which you would like to copy. The route must be empty.
3. Press
C
and rotate
K
to select ‘copy?’. Press
E
.
4. Use
K
to enter the route you would like to copy. The departure/arrival identifiers will be
displayed for your reference. Press
E
to copy the route.
The CPA function calculates the closest distance that a route will pass to a
reference waypoint, and helps when creating new route waypoints referenced to a
NAVAID.
To calculate the closest point of approach (CPA) from the route catalog page:
1. Use
K
to display the route you would like to use for the CPA function. The route must
consist of at least two waypoints, and the reference facility must fall between the
waypoints of a route leg.
2. Press
C
and rotate
K
to select ‘cpa?’. Press
E
.
3. Use
K
and
O
to enter the identifier of the reference waypoint.
4. Press
E
. The bearing and distance of the closest point on the route will be displayed.
5. Press
E
to add the cpa waypoint to the route, or
\
to finish. If you do add the cpa
waypoint to the route, it will be named based on the reference waypoint plus a number
(0-9) added to the end (e.g., KMCI3 for KMCI). If the waypoint does not fall between
waypoints on the route, the reference waypoint does not exist or a unique name cannot
be assigned to the CPA waypoint, you will be informed with the ‘Invald CPA wpt ____’
message.
Calculating closest point of approach.
Closest point of approach to ‘TXK’.
155xlb manual 1/12/99 4:06 PM Page 65