TM 55-1510-222-10
display to nearest tenth of a degree.
(g) Drift angle: Data selector - HDG/DA.
Observe drift angle appears in right data display to
nearest degree.
(h) Wind speed and direction: Data selector -
WIND.
Wind direction appears in left data display to nearest
degree and wind speed appears in right display to
nearest knot.
(i)
Desired
track
angle:
Data
selector
-
DSRTK/STS.
Observe desired track angle in right data display to
nearest degree.
(j)
Track angle error: Data selector - XTK/TKE.
Observe track angle error appears in right data display
to nearest degree.
(k) Cross track distance: Data selector -
XTK/TKE.
Observe cross track distance appears in left data display
to nearest nautical mile.
(I)
Distance and time to next waypoint: Data
selector - DIS/TIME.
Observe distance to next waypoint, shown in TO side of
TO-FROM display, appears in left data display to
nearest nautical mile. Observe time to reach next
waypoint at present groundspeed, appears in right data
display to nearest tenth of a minute.
(m) Extra precision geographic present position
display:
1.
Data selector - L/L POS. Latitude and
longitude of present position, to nearest
tenth of a minute, appears in left and
right data displays, respectively.
2.
INSERT/ADVANCE pushbutton - Press.
Observe arc-seconds related to present position latitude
and longitude, to nearest tenth of a second, appear in
left and right data displays, respectively.
(n) Geographic present inertial position display.
1.
Data selector - L/L WY PT.
2.
HOLD pushbutton - Press. Observe
HOLD pushbutton annunciator illuminates, latitude and
longitude of present inertial position to a tenth of degree
appear in left and right data displays, respectively.
NOTE
While HOLD pushbutton annunciator
is extinguished, TACAN updates are
inhibited.
3.
INSERT/ADVANCE pushbutton - Press.
Observe arc-second related to present inertial position
latitude and longitude, to nearest tenth of a second,
appears in left and right data displays, respectively.
4.
HOLD pushbutton - Press.
Observe INS returns to normal operation and HOLD
pushbutton annunciator extinguishes.
(o) UTM present inertial position display:
1.
Data selector - UTM WY PT.
2.
HOLD pushbutton - Press.
Observe HOLD pushbutton annunciator illuminates.
Northing and zone with easting of the present inertial
position in kilometers appear in left and right data
displays, respectively.
NOTE
While HOLD pushbutton annunciator
is illuminated, TACAN updates are
inhibited.
3.
INSERT/ADVANCE pushbutton - Press.
Observe extra precision values related to present
inertial position northing and easting, to nearest meter,
appear in left and right data displays, respectively.
4.
HOLD pushbutton - Press.
Observe INS returns to normal operation and HOLD
pushbutton annunciator extinguishes.
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