BendixKing KGP 860 - Manual (Page 9)

Rev 5 Jul/2004 KGP 560/860 Pilot's Guide
5
GA-EGPWS FUNCTIONS AND FEATURES
AIRCRAFT POSITION
The KGP 560/860 GA-EGPWS uses Global Positioning System (GPS)
information from either an aircraft-installed GPS receiver, or an internal
GPS receiver contained in the KGP 560/860 computer itself. It is good
for the pilot to be aware of the actual position source being used by the
system, as the internal GPS is not used for navigation of the aircraft.
GPS signals arrive at an antenna on the aircraft and are then processed
by the KGP 560/860 computer to provide both horizontal (lateral) and
vertical position (altitude) information. This position in space is then
compared to the terrain, obstacle and runway database information con-
tained in the KGP 560/860 computer to produce a “virtual” picture which
can then be displayed to provide Situational Awareness for the pilot.
Other GPS information such as true track, groundspeed, vertical velocity,
N/S and E/W velocity, and signal accuracy measurements are also
processed by the KGP 560/860 computer to provide a complete picture
of not only the aircraft position in three dimensions, but also an excellent
picture of the aircraft’s flight path.
This total package of information is then used to provide the Terrain
Display for the pilot, and to provide alerting and warning functionality to
protect the pilot and passengers from possible conflicts with terrain,
known obstacles, and other scenarios associated with the dangers of
Controlled Flight Into Terrain (CFIT).
Functions and Features