alerting occurs approximately 36 seconds prior to
actually reaching the waypoint.
Figure 3-86. SET 6 Page
(8) The Setup 7 Page. The SET 7 page is
used to select whether the altimeter setting used in the
KLN 90B is made in inches of Mercury or millibars.
Refer to Figure 3-87. To change the altimeter setting
between inches of Mercury and millibars, select the
SET 7 page, press the left CRSR button, and rotate
the left inner knob to make the selection. When
finished, press the left CRSR button to turn off the
Figure 3-87. SET 7 Page
(9) The Setup 8 Page. The Special Use
Airspace (SUA) alert feature may be enabled or
disabled on the SET 8 page. Refer to Figure 3-88.
After displaying the SET 8 page on the left side, press
the left CRSR button to turn on the left cursor function.
The left inner knob is used to display AIRSPACE
ALERT ENABLE or AIRSPACE ALERT DISABLE. If
the SUA feature has been enabled, the KLN 90B
allows the selection of a vertical buffer in order to
provide a vertical warning of SUA. To select a vertical
buffer, ensure the SUA feature has been enabled.
Press the left CRSR button to turn on the left cursor
and then use the left outer knob to move the cursor
over the first position of the vertical buffer. Use the left
inner knob to select each number and the left outer
knob to position the cursor. The buffer may be
selected in 100-foot increments. After the desired
selection has been made, press the left CRSR button
to turn off the cursor function.
Figure 3-88. SET 8 Page
(10) The Setup 9 Page. There are no aural
alarms associated with the KLN 90B; therefore, this
page displays FEATURE DISABLED.
bd. The Trip Planning Pages. There are seven
trip-planning pages (TRI) that can be displayed on the
left side of the screen. The TRI 1 and 2 pages team
together to provide trip planning from the present
position to a selected waypoint. The TRI 3 and 4
pages provide trip planning between any two selected
waypoints. The TRI 5 and 6 pages provide an
analysis of any of the 26 flight plans in the flight plan
Data entered on any of the trip planning pages
have no effect on the navigation data provided on any
navigation or flight plan page.
The trip planning pages rely on pilot-
groundspeed, and fuel flow. These pages
do not utilize inputs from the fuel flow or
air data sensors, if installed.
Areas of special use airspace are displayed
on the trip planning pages without regard
(1) The Trip Planning 0 Page. The
anticipated true airspeed and winds aloft are entered
on the TRI 0 page so this information may be us ed on
the other trip planning pages. Refer to Figure 3-89.