Furuno FEA-2107-BB - Page 600

Appendix 1: Glossary of Terms
AP-4
WORLD GEODETIC SYSTEM (WGS)
A consistent set of parameters describing the size and shape of the earth, the positions of a network of points with
respect to the center of mass of the Earth, transformations from major geodetic datums, and the potential of the
Earth.
FROM WP
TO WP
HDG =Heading
COG, SOG =
Course Over Ground
Speed Over Ground
Set and Drift
PLAN
=
Center line of
monitored route
ROUTE =
Calculated course
to minimize off track
OFF TRACK
Figure 1
forwarding
distance = f
Wheel Over Point
WOP
radius
next course
Approach
Point
end of turn
Waypoint
WP
WP approach
alarm time
Figure 2