User Guide
190-00443-01 Rev. A Garmin G1000 PFD Pilot’s Guide for Mooney M20M & M20R
3-19
FLIGHT INSTRUMENTS
ARC HSI
The Arc HSI is a 140˚ expanded section of the com-
pass rose. The Arc contains a course pointer arrow, a
TO/FROM indicator, a sliding deviation indicator (the
TO/FROM and sliding deviation indicators are one and
the same), and deviation scale. Upon station passage, the
TO/FROM indicator flips and points to the tail of the air-
craft just like the conventional TO/FROM flag. Depend-
ing on the source of navigation, the CDI on the Arc HSI
can appear in the following ways:
• GPS, OBS, VOR – appears as a arrowhead
• Localizer – appears as a diamond
NOTE: If the pilot makes a heading change
greater than 105
˚
with respect to the course, the
CDI switches to the opposite side of the deviation
scale and displays reverse sensing.
Lateral Deviation
Scale
Course Deviation and
TO/FROM Indicator
Figure 3.4.14 ARC HSI
NOTE: When the Arc HSI is displayed, the BRG1
and BRG2 information windows are disabled.
Heading Indication
A digital reading of the current magnetic heading ap-
pears on top of the HSI. A rotatable heading bug on the
compass rose and arc marks the desired heading. When
the pilot selects a heading, a digital reading appears for 3
seconds in a box left of the lubber line, next to the HSI.
Figure 3.4.15 Selected Heading Box
When the pilot selects a course, a digital reading ap-
pears for 3 seconds in a box right of the lubber line, next
to the HSI.
Figure 3.4.16 Selected Course Box
NOTE: The heading displayed on the HSI is always
magnetic, even if the NAV ANGLE is set to ‘TRUE’
in the AUX System Setup Page on the MFD.










