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2.18.4.3.7 Shaped Attitude Display Indicator. When the ADI option is selected on the SUPT menu,
a shaped attitude display indicator is available on the MPCD or UFCD. The pitch ladder is displayed
in 10° increments, with ±30° in pitch being displayed when the gear is up. With the gear down, the
pitch ladder is displayed in 5° increments with ±15° in pitch being displayed. A turn indicator is
provided below the ball. A standard rate turn (3°/second) is indicated when the lower box is displaced
so that it is under one of the end boxes.
On the MPCD, the shaped ADI is black above the horizon to represent sky, and green below the
horizon to represent the ground. On the UFCD, the shaped ADI is unshaded above the horizon (sky)
and shaded green below the horizon (ground).
Selecting the INS or STBY options at the bottom of the display determines the source of attitude
information used to generate the display. Upon power-up with WonW, the ADI attitude initializes to
Figure 2-41. Menu Display
A1-F18EA-NFM-000
I-2-132 CHANGE 1
STBY (STBY boxed), thus using the standby attitude reference indicator for attitude source
information. Selecting the INS option (INS boxed) uses attitude information provided by the INS.
Selection of INS or STBY on the ADI does not change the source of attitude data for the HUD.
Airspeed and altitude are displayed in boxes at the top, altitude source is displayed to the right of
the altitude box and vertical velocity is displayed above the altitude box. When ILS is selected the
deviation needles are displayed in reference to the waterline symbol. The ILS needles are yellow when
COLOR is selected on the attack display.
2.18.4.4 MPCD - Multipurpose Color Display. The MPCD is an NVG compatible digital display
capable of providing any MENU selectable format except the video on the A/G radar display (figure
2-43). The MPCD drives itself using information received on the MUX.
The BRT knob controls the overall video and symbology brightness and also acts as the power
control for the MPCD and UFCD; a detented OFF position at the extreme counterclockwise position.
The CONT knob adjusts the video contrast of the MPCD display. The day/night mode is controlled
by the day/night/NVG switch on the interior lights panel.
2.18.4.4.1 Standby Indication. A flashing STANDBY indication is provided in the center of the
display on initial power-up and when there is invalid mux communication with the MC. If the
STANDBY condition persists for a few seconds, cycling power to the MPCD may return the MPCD
and UFCD to normal operation.
2.18.4.4.2 Brightness and Contrast Controls. The brightness control is used to adjust the overall
brightness of the MPCD display surface, allowing symbology and video to be adjusted. The full
counterclockwise position of the brightness control knob shuts off power to both the MPCD and the
UFCD. Selecting ON powers both the MPCD and the UFCD.
The contrast control is used to adjust video contrast.
2.18.4.4.3 Symbology Rocker Switch. The symbology (SYM) brightness rocker switch is used to
adjust the brightness of the symbology without affecting the brightness of the MPCD video.
Symbology change feedback in provided in the left center of the display by a digit from 0 to 9. This
Figure 2-42. Electronic Attitude Display Indicator
A1-F18EA-NFM-000
I-2-133 ORIGINAL
feedback is provided while the rocker switch is pressed and for 5 seconds after the rocker switch is
released.
2.18.4.4.4 DDI Formats on MPCD. Every display format is available on the L or R DDI. A/G radar
symbology and monochrome video is available on the MPCD. A/G video is not available.
2.18.4.4.5 MPCD Formats. If two different map formats are provided in the front and rear cockpits,
only one displays the map; the other provides only symbology. The priority of the format which
displays the map is HSI, followed by SA, and finally EW.
2.18.4.5 HSI Display Symbology. Basic HSI symbology such as the compass rose, ground track
pointer, lubber line (for magnetic heading), true airspeed readout, ADF bearing pointer, groundspeed
readout, and aircraft symbol are not described. These symbols are shown in figure 2-43.
Display format lines, just below the top row of pushbutton labels, indicate the formats being
displayed on the left, center, right and UFCD displays in both the cockpit (left side of HSI display) and
rear cockpit (right side of HSI display).
Radar target and GEOREF symbols are described in A1-F18EA-TAC-Series. The following
paragraphs describe unique navigation symbology. Refer to part VII for a description of how these
symbols are integrated with the navigation system:
1. Waypoint/OAP data. Data for the current steer to waypoint/OAP is displayed on the upper right
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本文链接地址：
NATOPS Flight Manual 飞行手册 1(100)
