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3.9.5 The Navigation 4 Page (NAV 4)
The NAV 4 page (figure 3-107) is used for altitude alerting
and for advisory vertical navigation (VNAV). The opera-
tion of altitude alerting is described in section 3.15 and
the operation of VNAV is described in section 5.2.
3.9.6 The Navigation 5 Page (NAV 5)
The NAV 5 page provides a graphical "moving map"
which displays your aircraft's current position relative to
the active waypoint or other flight plan waypoints. In all
KLN 900 installations there are three common map orien-
tation formats that may be selected on the NAV 5 page:
a North up (N?) display, a desired track up (DTK?) dis-
play, or an actual track up (TK?) display. In addition, if
the KLN 900 is interfaced with a source of heading in a
compatible format then a heading up (HDG?) presenta-
tion may also be selected. When the North up display is
selected, viewing the NAV 5 page is like looking at a navi-
gation 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?) for-
mat 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 head-
ing up display is being used.
In chapter 4 of this Pilot's Guide 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 (figure 3-108). Thus, the position of the
third waypoint in FPL 0, MXE, 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 asterisk(*) (figure 3-109).
To select the desired NAV 5 orientation, press the appro-
priate C (left C if NAV 5 page is on left side and vice
versa). The cursor will be over the map range scale (fig-
ure 3-110). Turn the appropriate outer knob one step
counterclockwise to position the cursor over the map ori-
VNV
IND
SEL: 3500ft|
KOSH :-03nm|
ANGLE:-1.8^|
NAV 4
1:KMDT
; 2:LRP
< 3:MXE
4:KPHL
5:
FPL 0 enr-leg
NŸ
NAV 5
NŸ
3-34
6200ft|
|
6300ft|
Figure 3-107
4
|
|
|
3
|
|
|123^
2
NAV 5
Figure 3-108
*
|
1
|
2
|
i j
4
3
|
|
40|
Figure 3-109
|
|
1
2
|
i j
4
|
3
|
NŸ
40|
CRSR
Figure 3-110
|
|
1
2
|
i j
4
|
3
|
40|
CRSR
Figure 3-111
40
Rev 2
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