Beechcraft C-12C Operator And Technical Reference Manual page 343

d. Longitude – Input. Use East
or West key first, followed by
the
degrees, minutes and tenths
of minute.
e. ENTER key – Press to enter
the longitude into memory.
4. EST GS:.
a. If on the ground, verify that 0
is
ENTER.
b. If in flight, Input estimated
groundspeed,
ENTER.
5. APPROVE? – Press ENTER to
approve all of the data on the
initialization page and enter the
data in memory. The first page of
the flight plan menu (FPLS) will
now appear.
NOTE
The configuration of the main data base
can be reviewed
initialization. Since so many of the system
capabilities depend upon the data base it is
important to review which geographic
region and which navigational elements
within these regions are actually loaded in
the data base.
(4) Reviewing the Data Base.
CAUTION
The data base should be reviewed prior to
takeoff, since the system cannot provide a
navigation function while the data base is
being loaded.
1. DAT key – Press as required to
display the DATA 2 menu page.
2. Menu item UPDATE D/BASE – Select
using the menu selection procedure.
The UPDATE D/BASE page will
display.
3. Menu item REVIEW D/BASE – Select.
The REVIEW D/BASE page will
display. Only the geographic regions
followed by
contained in the main data base.
known longitude
displayed and press
then press
at any time after
an * are presently
4. Desired geographic region – Select.
The review elements page for the
in selected region will display. Only the
geographic regions followed by an *
are presently contained in the main
data base.
5. DAT key – Press to return to the
review data base page. Navigational
elements stored for each of the other
geographic regions with an * can be
viewed by repeating steps 4 and 5 as
many times as necessary.
(5) Configuring the Data Base.
If the VOR and DME (TACAN) sensors are
to be utilized, navaids for the geographic
regions in which flight is to occur must be
loaded in the data base.
Since not all the worldwide data on the
revision diskette can be contained at one
time in the main data base, it is necessary
to select which geographic regions and
which navigational elements within these
regions will be loaded into the data base.
The data base does not need to be
reconfigured if there are no configuration
changes from the previous loading.
The system must be turned on and
initialization must be complete before
configuring the data base.
1. Data loader cover – Open.
2. Update diskette – Insert into data
loader. The diskette will not lock into
place if it is positioned incorrectly.
3. DAT key – Press twice or as required
to display the DATA 2 menu page.
4. Menu item 5 – Select as follows:
a. Cursor n or p key – Press to
b. ENTER key – Press. The update
5. Menu item 2 – Select as follows:
a. Cursor n or p key – Press to
TM 1-1510-218-10
CAUTION
NOTE
position cursor over item 5.
data base page will display.
position cursor over item 2.
3B-53