Garmin GDL 69A GPS Receiver User Manual


  Open as PDF
of 50
 
31
Part Three: Section 1
TAWS Introduction
Part Three:
TAWS Interface
Section 1: Introduction
NOTE: GNS 530W units may display a TERRAIN
Page, a TAWS Page, or neither, (but not both)
depending upon the installed hardware and
configuration.
Overview
Garmin’s Terrain Awareness Warning System
(TAWS)isanoptionalfeature(500W-seriesonly)to
increase situational awareness and aid in reducing
controlled flight into terrain. Garmin TAWS satisfies
TSO-C151bClassBrequirementsforcertication.
ClassBTAWSisrequiredforallPart91aircraft
operationswithsixormorepassengerseatsandfor
Part135turbineaircraftoperationswithsixtonine
passengerseats(FARParts91.223,135.154).
TAWS provides visual and aural annunciations
when terrain and obstacles are within the given altitude
threshold from the aircraft.
Garmin TAWS satisfies TSO-C151b Class B
requirements for certification
Operating Criteria
Garmin TAWS requires the following to operate
properly:
•Thesystemmusthaveavalid3DGPSposition
solution
•Thesystemmusthaveavalidterrain/obstacle/
airport terrain database
Limitations
NOTE: The data contained in the TAWS databases
comes from government agencies. Garmin accurately
processes and cross-validates the data, but cannot
guarantee the accuracy and completeness of the data.
TAWS displays terrain and obstructions relative
to the altitude of the aircraft. The displayed alerts
and warnings are advisory in nature only. Individual
obstructions may be shown if available in the database.
However,allobstructionsmaynotbeavailableinthe
database and data may be inaccurate. Never use this
information for navigation or to maneuver to avoid
obstacles.
Terrain information is based on terrain elevation
data contained in a database that may contain
inaccuracies. Terrain information should be used
as an aid to situational awareness. Never use it for
navigation or to maneuver to avoid terrain.
TAWS uses terrain and obstacle information sup-
plied by government sources. The data undergoes veri-
fication by Garmin to confirm accuracy of the content,
perTSO-C151b.However,thedisplayedinformation
should never be understood as being all-inclusive.
190-00356-30 Rev C
 previous next