BendixKing KLN 900 - Abbreviated Guide - Manual (Page 22)

5 page is like looking at a navigation chart with North at the top. When the
desired track up display is selected, viewing the NAV 5 page is like
looking at a chart that is turned so that your course line is always pointing
up. When the actual track up display is selected, viewing the NAV 5 page
is like looking at a chart that is turned so that the direction the aircraft is
tracking over the ground is pointing up. In a no wind condition, actual
track is identical to the aircraft’s heading.
CAUTION: When using the actual track up (TK ? ?) format it is typical
for there to be a slight delay from the time a heading change is made
until the correct map orientation is displayed. Be careful when using
either the desired track up (DTK
? ?) display or the actual track up
(TK ? ?) display to not think that a heading up display is being used.
In sections 12.0 and 13.0 you will learn to use flight plan operation where
the NAV 5 page really becomes useful. When navigating using flight plan
operation, the active flight plan (FPL 0) waypoints are displayed using the
number associated with the waypoint as it appears on the FPL 0 page.
Thus, the position of the third waypoint in FPL 0 is indicated by a 3 on the
NAV 5 page. Lines connect the flight plan waypoints. An arrow points to
the active waypoint and shows the current flight plan leg.
When operating Direct To a waypoint which is not in the active flight plan,
the Direct To waypoint is indicated on the NAV 5 page by an *.
To select the desired NAV 5 orientation press the appropriate C (left
C if NAV 5 page is on left side and right C if NAV 5 is on the right).
The cursor will be over the map range scale. Turn the appropriate outer
knob one step counterclockwise to position the cursor over the map orien-
tation field. Rotate the appropriate inner knob to display N
? ? for North up,
DTK ? ? for desired track up, TK? ? for actual track up, or HDG? ? for
heading up. The heading up selection is not presented as a choice if
heading is not provided to the KLN 900. If the cursor is moved to the map
range scale using the outer knob or if the cursor is turned off with the
C
button, then the DTK ? ? , TK? ? , or HDG? ? annunciation is replaced with
the actual value.
If a heading input is available to the KLN 900 then heading up is usually
the best map orientation to select. Otherwise, actual track up display is
usually preferred for use in flight. However, the track up display is only
usable when the aircraft is moving 2 knots or more.
In both the North up format and the desired track up format, the aircraft’s
position is depicted by a diamond. In the actual track up format and the
heading up format, the aircraft’s position is depicted by an aircraft symbol.
The range scale is displayed in the lower right corner of the NAV 5 page.
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