14
August 2011, Preliminary
10. FLIGHT COMPARTMENT, INSTRUMENTATION AND AVIONICS
(Continued)
The GMC 710 Mode Controller, located just below the
glareshield, enables the selection of flight director and
autopilot modes for either pilot. The AFCS modes may
be hand flown using the flight director command bars or
coupled to the autopilot for automatic flight. Selection of
the autopilot will automatically enable the flight director.
Modes of operation include attitude, heading, altitude,
speed, and vertical speed, as well as VNAV and the var-
ious NAV radio and GPS navigation modes. In addition,
the AFCS provides a takeoff/go-around mode activated
by a button on the left throttle handle. Control Wheel
Steering (CWS) and AP disconnect functions are con-
trolled via switches on each yoke.
The pitch trim servo also provides electric pitch trim
when the autopilot is not engaged, through yoke mount-
ed trim switches. The yaw servo may be activated by the
pilot during normal maneuvers to provide Dutch roll
damping and turn coordination. Or, it will automatically
engage with autopilot activation.
M. Transponders
The Garmin GTX 33D transponders reply to Mode A,
Mode C, and Mode S interrogation. Ground stations can
interrogate Mode S Transponders individually using a
24-bit ICAO Mode S address (unique to the aircraft), and
the ground station can interrogate the transponder for its
transponder data capability and the aircraft's Flight ID
(registration number or other call sign). The GTX 33D
transponders also feature Extended Squitter that pro-
vides Automatic Dependent Surveillance-Broadcast
(ADS-B) capability to improve situational awareness and
flight safety. ADS-B capability automatically transmits
position, velocity, and heading information to other air-
craft and ground stations to provide surveillance of air-
to-air traffic and aircraft in remote areas not currently
covered by radar.
N. Weather Avoidance Radar
The Garmin GWX 70 is a solid state radar with 40 watts
of transmit power and Altitude Compensated Tilt (ACT).
The radar supports display of different weather data on
multiple display units simultaneously. Doppler capability
is an option on the GWX 70 which adds the ability to see
frequency shifts that are caused when an object reflect-
ing the radar pulse is moving relative to the radar itself.
The addition of Doppler adds the two distinct advan-
tages of Turbulence Detection and Ground Clutter
Suppression.
O. XM Weather Receiver
The Garmin GDL 69 is a remote satellite radio receiver
that is capable of receiving XM Weather which is dis-
played on the PFDs and/or MFD. The receiver operates
in the S-band frequency range and provides a continu-
ous downlink capability at any altitude throughout North
America. Optionally, XM Radio Audio can be received
through this unit.
P. DME
A single Collins DME-4000 provides the ability to moni-
tor as many as three active DME stations simultaneous-
ly. This allows full time distance display of pilot-selected
VHF navaids, along with the enhancement of FMS posi-
tion determination through the use of non-displayed
DME channels. Tuning and management is accom-
plished through the GTCs.
Q. Radio Altimeter
The Collins ALT-4000 Radio Altimeter system provides
height above the terrain from 2,500 feet (762 m) to
touchdown. This information is integrated with functions
in the EFIS, TCAS, and TAWS and is presented on the
PFDs.
R. Traffic Collision Avoidance System (TCAS I)
The Garmin GTS 855 is a TCAS I system that improves
situational awareness by tracking all Mode C and S air-
craft and displaying their locations on the PFDs and/or
MFD. In addition to the display, Traffic Alerts are given
aurally through the aircraft audio system.
S. Terrain Avoidance Warning System (TAWS)
The Garmin Terrain Avoidance Warning System is a
Class B TAWS. The system provides basic terrain aware-
ness and ground proximity alerting. Terrain information is
displayed in standard colors on the MFD and gives both
audible and visual warnings as required. The terrain
database resides in the secure digital data storage cards
located in the lower port on the right hand side of each
PFD and MFD bezel. Data is independently processed
by each of the three Display Units for display either when
pilot selected or when activated by ground proximity cri-
teria.
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