(4) With the cursor over LOAD IN FPL, press
the ENT button. The approach will be loaded into the
active flight plan.
(5) After the approach is loaded into the flight
REDUNDANT WPTS IN FPL EDIT EN ROUTE
WPTS AS NECESSARY.
(6) Examine the flight plan and, if practical,
observe the Super NAV 5 page to make sure that the
unnecessary legs in it.
(7) The KLN 90B will now provide guidance
to the arc intercept point. The Super NAV 5 page
displays the entire arc on the screen. Refer to Figure
3D-70. The portion between the beginning of the arc
and the arc intercept is drawn with a dashed line. The
part that is between the arc intercept point and the end
of the arc is drawn with the normal solid line.
Figure 3D-70. DME ARC
(8) In some cases, ATC may provide radar
vectors to the arc. The KLN 90B provides a means to
define a new intercept point based on the current track
of the aircraft over the ground. This can be done from
either the Super NAV 5 page or from the FPL 0 page.
The dashed line on the Super NAV 5 page will help in
determining if the ATC vectors are correct.
1. From the Super NAV 5 page, pull out
the right inner knob to bring up the
waypoint scanning window.
2. Turn the right inner knob until the first
waypoint of the arc is displayed. For
appended to the waypoint name. If
the recalculation is to be done from
the FPL 0 page, turn on the left cursor
and move if over the first waypoint of
3. From either page press the clear
button. This will change the waypoint
to read MOVE?. Refer to Figure
3D-71. If it is desired to re-compute
the arc intercept point, press the ENT
button. If a new arc intercept point is
not desired, press the clear button
Figure 3D-71. DME ARC MOVE?
4. If the ENT button was pressed, the
KLN 90B will calculate an arc intercept
point based on the present track of the
aircraft over the ground.
If the present track does not intercept the
arc, the KLN 90B will display NO INTRCPT
in the scratchpad area of the screen.
(9) When the aircraft approaches the arc, the
KLN 90B will provide waypoint alerting and turn
anticipation to join the arc.
(10)Once established on the arc, the KLN 90B
provides left/right guidance relative to the curved arc.
Distance to the active waypoint is the distance from
the present position to the active waypoint, not the
distance along the arc.
(11)During the arc, the desired track will be
constantly changing. To help to keep the orientation
correct, the Super NAV 5 page will automatically
display DTK on the sixth line. It is not possible to
change this while on the arc. The value displayed for
the desired track will flash when the difference
between the CDI or EHSI and the current desired track
is greater than 10°.
(12)Some DME arcs have defined radials that
serve as step down fixes. These points are not stored
in the database. To help determine the position
relative to these step down points along the arc, the
KLN 90B will display a new value on the bottom line of