2. D. (1) d. ~ XTK DTK
- This
key is used to select and display the
crosstrack position
in nautical miles and the desired track.
~ DIS TIM - The distance/time key is used to select and display
the distance and time to the TO waypoint based upon present
position and current ground speed.
Q TK GS
- This key is used to select and display the current
track and groundspeed.
~ Pos - The position key is used to initialize and display the
present position of the aircraft.
Q WD WS
- This key is used to select and display the current
wind direction and windspeed.
~ HDG STS - The heading/status key is used to display the
current aircraft heading.
When the IRU is
in the align mode,
the NDU displays alignment status (time remaining until nav
mode entry).
When the IRU is in the nav mode, the
NDU
displays heading in the left display, and
when the IRU is in
the attitude
mode, the NDU displays magnetic heading in the
left display and “ATT”
in the right.
(2) :::;]:;s
- The NDU contains a data display and a FROM TO WPT
.
a. Data Display
- The NDU data display consists of two displays: a
six-position display and a seven-position display, each having
degree, decimal,
and minute indicators.
b. FROM TO WPT Display
- These three elements display the FROM and
TO waypoint numbers of the current leg and the number of the
waypoint defined by the position being displayed.
(3) Fault Annunciator -
The NDU FAULT annunciator lights when NDU
built-in-test equipment (BITE) detects internal failures.
(4) ON/OFF Switch -
The ON switch is used to power on and power off
NDU.
the
22-14-00
Page 128.7
Apr 15/93
Use or disclosure of information on thispage issubject to the restrictionson the titlepage of thisdocument.
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