INDEX

TM 1-1520-238-10

3.14 NON–INTEGRATED NAVIGATION SYSTEM
34
3.14.1 Heading Attitude Reference System (HARS).
34
a. System Description
34
b. Controls and Functions.
35
3.14.2 Required Navigation Dat
36
3.14.3  Doppler Navigation Sets.
37
3.14.4  DNS  Antenna.
37
3.14.5  AN/ASN–128 DNS Controls and Displays.
37
3.14.6  Modes of Operation
37
a.   Test Mode.
37
b.   Navigate Mode
41
c.   Backup Mode
41
3.14.7  Methods  of  Operation.
41
a.   Window  Display  and  Keyboard  Operation.
41
b.   Data Entry.
41
c.   Starting Procedure.
41
d.   Entering  UTM  DATA
43
e. Entering Spheroid and/or Variation
43
f.  Entering Present Position or Destination In UTM.
43
g.   Entering Present Position or Destination Variation In LAT/LONG
44


h.   Entering Ground Speed and Track.
44
3.14.8  Operating Procedures
44
a.   Update  of  Present  Position  From  Stored  Destination.
44
b.   Update   of   Present   Position   From   Landmark

c.   Left-Right  Steering  Signals.

d.   Target Store (TGT STR) Operation.

e.   Transferring  Stored  Target  Coordinates  From One Location to Another.

f.   Transferring  Variation  From  One  Location  to Another

g.   Dead  Reckoning  Navigation

h.   Operation  During  and  After  Power  Interruption





LIST OF FIGURES

Figure   3-10.   HARS Control Panel
35
Figure   3-11.  CDU CP1252, Used With AN/ASN-128 DN 
38




LIST OF TABLES

Table   3-11.   HARS Control Functions and Alignment Methods
36
Table   3-12.  AN/ASN-128 Control  and Indicator  Functions
38
Table  3-13.  AN/ASN-128  Window Displays
42
38