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Figure 3-29. NAV ALIGN Page-LAT/LONG (Sheet 3 of 3)
3-58. CLOCK TIMER PAGE. or
Enter letter “O” followed by a positive or
The CLOCK TIMER page (fig. 3-30) allows the operator negative offset in hours to ZULU (label will
to select the appropriate time display for the mission. change from MISSION to LOCAL). If valid
The operator may choose to display ZULU time offset is entered, the operator will no longer
provided by the GPS, MISSION time, LOCAL time or a be allowed to enter MISSION time.
count down timer. TIMER1 causes an advisory when its
time has counted down to zero. ALARM1 causes an
advisory when MISSION/LOCAL time matches alarm 3-60. SETTING TIMER 1.
time.
1. TIMER1 key Press.
3-59. SETTING MISSION TIME OR LOCAL
TIME. 2. MFK Enter a meaningful advisory message
to the timer label and press ENTER.
Set as follows:
3. MFK Enter time in minutes and seconds to
1. MISSION key Press. count down to.
2. MFK Enter a valid time (defaults to 4. ENTER key Press to start timer. Press
00:00:00) again to stop timer.
3-60
TM 1-1520-248-10
3-61. SELECTING TIME DISPLAY. 2. MFK Enter a meaningful advisory message
for ALARM1.
1. SELECT up key Press to move selection 3. MFK Enter time for alarm to be initiated.
box up.
4. ENTER key Press to turn alarm on. Press
2. SELECT down key Press to move again to turn alarm off.
selection box down.
3. Boxed label ZULU, MISSION/LOCAL, or
TIMER1 will be displayed on INITIAL PAGE
1.
3-62. SETTING ALARM 1.
1. ALARM1 key Press.
3-61
TM 1-1520-248-10
PULL
MAN
PULL
BKUP
BRT
C
ONT
VSD HSD MMS COMM
7
6
5
2
1
3
4
CLOCK TIMER
ZULU
12:31:05
MISSION
00:31:05
DATE
199
ALARM1
01:31:05
TIMER1
00:00
SELECT
NAV
ALIGN
406075-1525-5
J2995
TIME FOM
1
(CDS4) 8
CONTROL/INDICATOR FUNCTION
1. DATE Displays Julian date acquired from GPS.
2. ALARM1 Settable alarm clock function used with MISSION/LOCAL time.
3. NAV ALIGN key Calls up the NAV ALIGN page.
4. SELECT Causes ZULU, MISSION/LOCAL, or TIMER1 to be displayed on INITIAL
PAGE 1.
5. TIMER1 Count down timer.
6. MISSION key Allows entry of a mission time to be used as a count up time. Entering an
offset to ZULU causes label to change to LOCAL, with local time
displayed.
7. ZULU Displays ZULU time acquired from GPS.
8. (CDS4) The EGI provides the TIME FOM display at R-3. TIME FOM is display-
TIME FOM only and cannot be entered by the operator. If EGI not operational,
display at R-3 is blank.
Figure 3-30. CLOCK TIMER Page
3-62
TM 1-1520-248-10
3-63. WAYPOINT (WPT) LIST PAGE. PREPOINT key on the right side of the
MFD. This action w i l l cause the text
The waypoint (WPT) LIST page (fig. 3-31) is actually PREPOINT to be unboxed, and then the
six separate pages that serve as a directory of the 30 waypoint is stored as normal.
navigation waypoints and 30 targets that can be stored
in memory. Each page displays the present position
and ten waypoints. Each successive page is called up 3-65. NEW WAYPOINT LAT/LON PAGE.
using the NEXT PAGE key (R-3). Each waypoint line
has an alphanumeric identifier of up to four characters,
the coordinates, and the elevation of the waypoint. The The NEW WAYPOINT LAT/LON page (fig. 3-33) serves
present position of the helicopter is constantly being the same functions as the NEW WAYPOINT UTM page.
updated and displayed on the triple zero line of each This page is used when latitude and longitude
WPT LIST page. Any changes to this waypoint list are coordinates are used in navigation, and allows all
made through the NEW WAYPOINT pages. waypoint information to be entered in LAT/LON terms.
NOTE
3-66. FLIGHT PLAN PAGE.
A seventh WPT LIST page is accessible (CDS2) The FLIGHT PLAN page (fig. 3-34) is used to
only when a TACAN radio is installed, and assemble and display a list of waypoints that make up
displays 10 TACAN stations in a manner the flight plan route displayed on the HSD page. This
similar to the other six pages. page can be called up from any other page by pressing
the HSD key two times. If the HSD page is displayed,
pressing the FPLN key once will call up the FLIGHT
3-64. NEW WAYPOINT UTM PAGE. PLAN page. This page may also be called up by
pressing the FPLN key on the right side of the WPT
The NEW WAYPOINT UTM page (fig. 3-32) is called up
LIST or BFLD page. Up to 20 legs may be stored on a
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TECHNICAL MANUAL OPERATOR’S MANUAL FOR ARMY OH-58D HELICOPT(70)
