Garmin G1000 Mooney M20TN - Manual (Page 56)

Garmin G1000 Pilot’s Guide for the Mooney M20M/M20R/M20TN 190-00647-00 Rev. A 2-10
FLIGHT INSTRUMENTS
HORIZONTAL SITUATION INDICATOR (HSI)
The Horizontal Situation Indicator (HSI) displays a rotating compass card in a heading-up orientation. Letters
indicate the cardinal points and numeric labels occur every 30˚. Major tick marks are at 10˚ intervals and minor
tick marks are at 5˚ intervals. The HSI presents heading, turn rate, course deviation, bearing, and navigation
source information and is available in two formats (360˚ compass rose and 140˚ arc).
Changing the HSI display format:
1) Press the PFD Softkey
2) Press the 360 HSI or ARC HSI Softkey.
The 360˚ HSI (Figure 2-14) contains a Course Deviation Indicator (CDI), with a Course Pointer, To/From
Indicator, and a sliding deviation bar and scale. The course pointer is a single line arrow (GPS, VOR1, and
LOC1) or a double line arrow (VOR2 and LOC2) which points in the direction of the set course. The To/From
arrow rotates with the course pointer and is displayed when the active NAVAID is received.
Figure 2-14 Horizontal Situation Indicator (360˚ HSI)
5
6
8
7
2
4
3
9
14
12
13
11
10
1
1 Turn Rate Indicator
2 Lateral Deviation Scale
3 Navigation Source
4 Aircraft Symbol
5 Course Deviation Indicator
(CDI)
6 Rotating Compass Card
7 OBS Mode Active
8 TO/FROM Indicator
9 Heading Bug
10 Course Pointer
11 Flight Phase
12 Turn Rate and Heading
Trend Vector
13 Current Heading
14 Lubber Line
The Arc HSI (Figure 2-15) is a 140˚ expanded section of the compass rose. The Arc HSI contains a Course
Pointer, To/From Indicator, a sliding deviation indicator (the To/From and deviation indicators are combined),
and a deviation scale. Upon station passage, the To/From Indicator flips and points to the tail of the aircraft,
just like a conventional To/From flag. Depending on the navigation source, the CDI on the Arc HSI can appear
in two different ways: an arrowhead (GPS, VOR, OBS) or a diamond (LOC).
Lateral Deviation Scale
Course Deviation and
TO/FROM Indicator
Figure 2-15 Arc HSI
Course Pointer
Navigation Source
Flight Phase
Annunciation