GH-3100
Installation & Operation Manual
Page 5-12
Operation
TP-559
March 30, 2017
Revision K
5.2.4 Air Data Presentation
Air data display appears as shown in Figure 5-6.
Figure 5-6: Attitude Display with Airspeed and Altitude
5.2.4.1 Altitude Tape
Altitude tape is presented on a vertical tape on the right side of the display area (refer to Figure 5-6) with
the digital baro correction readout at the top of the tape.
5.2.4.1.1 Altitude Tape Format
The tape is capable of displaying altitudes from –1,000 to +55,000 feet with altitude digits shown at 500-
foot increments. Negative numbers are shown with a right justified minus sign (“-”). For altitudes < -
1,000 or > +55,000 an X or a box with “ALT” descriptor is drawn over the altitude tape area (refer to
Figure 5-8). The color of the descriptors are based on the selected configuration (refer to AIR DATA
FAILURE COLOR). The following defines more precisely the tape presentation:
•
The altitude tape displays a span of 1,100 feet during normal operation.
•
The altitude tape displays a span of 800 feet when the menu mode is active.
•
The altitude tape current altitude is aligned with the vertical center of the attitude display area.
•
The altitude tape scale digit size is medium for the 1,000 and 10,000 foot digits and small size for the
remaining three digits. The altitude tape 10,000-foot digit is blanked for altitudes below 10,000 feet.
•
The altitude tape tic marks is located at 100-foot increments except at the 500-foot marks when the
optional chevrons are used.
•
The altitude tape digits and tic marks are white. The altitude tape background color is gray with no
border.
•
The altitude tape moves down for increasing altitude.
•
When ALTITUDE DISPLAY CHEVRON is configured for ON, the chevron in Figure 5-7B is
drawn in white on the altitude tape. The single chevron is drawn at the 500-foot positions and the
semi-dual chevron is drawn at the 1000-foot positions.
