BendixKing KLN 900 - Pilots Guide - Manual (Page 146)

5-39 Rev 2
5.9.6 Going Direct-To A Waypoint While in the OBS
Mode
The direct-to function will select the OBS value that will
take the aircraft from the present position direct to the
active waypoint when the KLN 900 is interfaced to EFIS,
a compatible mechanical HSI interfaced through a KA
90, or when the KLN 900 is not the displayed navigation
source on the external indicator.
If the KLN 900 is the displayed navigation source on a
non-driven HSI or a CDI it is not possible for the KLN
900 to change the OBS value. In these situations the
KLN 900 will provide a scratch-pad message that will tell
you what OBS value should be selected to go direct to
the active waypoint (figure 5-116).
5.9.7 Activating A Waypoint While In The OBS Mode
While in the OBS mode, you may activate another way-
point by using the normal Direct To method or by using
a second method. This second method activates
another waypoint without changing the selected course
(OBS). In other words, when the new waypoint is acti-
vated, the D-Bar is not recentered. In figure 5-117 the
KLN 900 is in the OBS mode and the selected course is
90°. You have just crossed INITT intersection and
desire to activate the next waypoint in the flight plan,
FINAL, without recentering the D-Bar.
1. Press D (figure 5-118). The rules described in
section 3.8, “DIRECT TO OPERATION”, dictate
which waypoint identifier will be initially displayed on
the Direct To page.
2. Press D a second time. The annunciation
DIRECT TO changes to ACTIVATE (figure 5-119).
The right side still displays the appropriate waypoint
page. Repeated presses of
D alternates between
DIRECT TO and ACTIVATE. Make sure ACTIVATE
is displayed.
3. Press E to approve the waypoint page and acti-
vate the waypoint (figure 5-120). The selected
course does not change, therefore this method does
not center the D-Bar like a Direct To operation.
5.9.8 Changing the CDI Scale Factor
The Course Deviation Indicator (CDI) scale factor can
be changed by using the MODE page. In normal opera-
tions it is possible to select a CDI scale factor which is
plus or minus 5 NM, 1 NM or 0.3 NM full scale deflec-
tion. This means that if the scale factor was ±1 NM and
the needle was deflected full scale to the right, the air-
craft would be 1 NM left of course. The default CDI
scale factor is ±5 NM. Figure 5-119
ACTIVATE: | FINAL
|REF: BTV
FINAL |RAD: 292.8^
|DIS: 11.7nm
|N 44^25.40'
|W 73^27.20'
CRSR enr:090 ent INT
Figure 5-120
3:GGT | =FINAL
4:BEGIN |+++·+i+++++
5:INITT |DIS 4.8nm
= 6:FINAL |GS 122kt
7:MMAPP |ETE :02
8:KHOM |BRG 088^
FPL 0 enr:090 NAV 1
Figure 5-117
3:GGT | =INITT
4:BEGIN |+++·+j+++++
= 5:INITT |DIS 0.4nm
6:
FINAL |GS 122kt
7:MMAPP |ETE :00
8:KHOM |BRG 275^
CRSR enr:090 NAV 1
Figure 5-116
| =GGT
|+++++i+·+++
|DIS 20.0nm
|GS 154kt
|ETE :08
|BRG 234^
$= CRS 234 NAV 1
Figure 5-118
DIRECT TO: | FINAL
|REF: BTV
FINAL |RAD: 292.8^
|DIS: 11.7nm
|N 44^25.40'
|W 73^27.20'
CRSR enr:090 ent INT