BendixKing KLN 900 - Pilots Guide - Manual (Page 66)

3-39 Rev 2
3.10 SPECIAL USE AIRSPACE ALERT
The KLN 900 database contains the location of areas of
special use airspace (SUA). The types of SUA areas
stored in the database and the abbreviations used to
denote these areas are the following:
Class B CL B
Class C CL C
Control Area (used outside USA) CTA
Terminal Area (used outside USA) TMA
Alert Area ALRT
Caution Area CAUT
Danger Area DNGR
Military Operations Area MOA
Prohibited Area PROH
Restricted Area REST
Training Area TRNG
Warning Area WARN
The KLN 900 will normally alert you prior to entering one
of these areas with a message prompt. When the
Message page is viewed it will display AIRSPACE
ALERT and will also display the name and type of the
special use airspace (figure 3-125). If the special use air-
space is a Class B, Class C, CTA, or TMA, the message
page will also instruct you to see the Airport 4 page (air-
port communications) for the primary airport so that the
correct communications frequency may be determined
(figure 3-126).
The SUA alert feature is three dimensional. The SUA
areas are stored in the KLN 900 database with regard to
altitude when the actual SUA altitude limitations are
charted in terms of mean sea level (MSL). Therefore, if
you are flying either above or below an SUA area you
won’t be inconvenienced with nuisance alert messages.
However, if the actual lower limit of a SUA is charted in
terms of an altitude above ground level (AGL), then it is
stored in the KLN 900 as all altitudes below the upper
limit of the SUA. If the actual upper limit of an SUA is
charted in terms of AGL, it is stored in the KLN 900 as
“unlimited”.
If the altitude input to the KLN 900 is pressure altitude
from an altitude encoder or air data computer, then you
must manually update the KLN 900 with an altimeter set-
ting (baro correction) in order to receive accurate SUA
alerting. You may easily update the altimeter setting
(barometric pressure) by pressing the
A button to dis-
play the Altitude page (figure 3-127). The cursor will be
over the inches field if “inches” was previously selected
on the SET 7 page. If “millibars” was selected on the
SET 7 page then the cursor will be over the first two digits
of the millibar field. The left inner knob is used to change
the digits and the left outer knob is used to move the cur-
sor to the desired position. When the altimeter setting is
complete, press
A to return to the pages previously in
view.
ALTITUDE |
|
BARO:
29 .92"|
ALERT: OFF |
|
|
CRSR
Figure 3-127
AIRSPACE ALERT:
COLUMBUS FOUR MOA
MEM CENTER
1000ft t] 18000ft
enr-leg msg
Figure 3-125
AIRSPACE ALERT:
OMAHA CL C
SEE KOMA APT 4 PAGE
BELOW 5000FT
enr-leg msg
Figure 3-126