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sounds at approximately 5 knots above stall with full flaps and power
off in wings level flight and at slightly greater margins in turning and
accelerated flight. The system operates on 28 VDC supplied though
the 2-amp STALL WARNING circuit breaker on the Essential Bus.
With battery power on, the stall warning system preflight check is
accomplished as follows:
Stall warning system preflight check:
1. Use small suction cup and apply suction. A sound from the
warning horn will confirm that the system is operative.
March 2010
7-66 Information Manual
Section 7 Cirrus Design
Airplane Description SR20
Standard Avionics
The following paragraphs and equipment descriptions describe all
standard avionic installations offered for the SR20. The avionics
navigation and communication equipment are mounted in he center
console and are easily accessible from either pilot seat.
For detailed descriptions of specific avionic equipment, operating
procedures, or data for optional avionic equipment, refer to the
equipment manufacturer's pilot's guide and the FAA Approved
Airplane Flight Manual Supplement in Section 9 for specific
information regarding the SR20 installation.
Standard avionics suites are available in the following configurations:
Standard Avionics System:
• Integrated Audio System with Intercom (Garmin GMA 340) -
The audio panel allows the selection of radio inputs to each
pilot's headset, selection of transmitting functions, and
intercom.
• Marker Beacon Receiver (Garmin GMA 340) - The marker
beacon receiver and annunciation functions are integrated into
the airplane audio system.
• IFR approach-certified GPS (Garmin GNS 430) - The standard
avionics in the SR20 is based on using Global Positioning
System (GPS) as the primary navigation system. The GPS
receiver provides position and track error data to the CDI and
ARNAV moving map display. The Garmin GNS 430 also
includes a VHF communications transceiver (COM 1), a VHF
navigation receiver (NAV 1), and a moving map display.
• Two VHF Communications (COM) Transceivers - The COM
transceivers provide VHF communications, as well as
frequency storage and selection. COM 1 is integrated into the
Garmin GNS 430 and COM 2 is integrated into the Garmin
GNC 250XL.
• Navigation (NAV) Receiver (VOR/LOC/GS) - A navigation
receiver using the standard VHF system is integrated into the
Garmin GNS 430. This receiver allows VOR navigation and
Instrument Landing System (ILS) approaches including
localizer and glideslope tracking.
March 2010
Information Manual 7-67
Cirrus Design Section 7
SR20 Airplane Description
• Mode C Transponder with altitude encoder (Garmin GTX 320 or
GTX 327) - An altitude digitizer provides altitude information to
transponder and GPS receiver.
• Multi-Function Display - Either an ARNAV ICDS 2000 or an
Avidyne FlightMax EX-Series moving map display is installed.
The moving map display shows airplane position in pictorial
representation on a moving map. The GPS navigator in the
GARMIN GNS 430 automatically provides position information.
• Course Deviation Indicator (CDI) or Optional Horizontal
Situation Indicator (HSI) - The CDI or HSI provides course
deviation with respect to VOR, Localizer (LOC), and Glideslope
(G/S) when VLOC is the selected navigation source and track
deviation with respect to a GPS track when GPS is the selected
navigation source. Optional vacuum powered or electrical
powered conventional HSI's are available and an optional
EHSI-type instrument is also available.
• Avionics Master Switch - Provides electrical power to airplane
avionics. Powers up the Multi-Function Display.
March 2010
7-68 Information Manual
Section 7 Cirrus Design
Airplane Description SR20
Multi-Function Display
This airplane is equipped with an Avidyne FlightMax EX5000C 700-
00004-XXX-() Multi-Function Flight Display (MFD). The MFD is a 10.4-
inch landscape-oriented display mounted in the instrument panel. The
MFD provides supplemental display of situational and navigation
information to the pilot. This is accomplished by showing an icon
representing the airplane against a moving map. The MFD accepts
data from a variety of sources, including the GPS sensors, the WX-
500 Stormscope, and the SkyWatch Traffic Advisory System. The unit
is organized around logical grouping of information presented on
“Pages.”
The Avidyne FlightMax EX-Series MFD is 10.4-inch diagonal color
Active Matrix Liquid Crystal Display (AMLCD) integrated into a Control
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西锐20飞机信息手册 SR22 AIRPLANE INFORMATION MANUAL 1148-126(72)
