Apollo 920 GPS User Manual page 71

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course to the way point is used (e.g., FF323).
These are also the same identifiers that appear
on approach charts modified for GPS overlay
approach use.
Each GPS overlay approach consists of two or
more waypoints. These waypoints are:
CF*** - final approach course fix
n
(e.g., CF17 or CF02L; about half of the
approaches have this waypoint)
FF*** - final approach fix
n
(e.g., FF22 or FF183; this waypoint is
always in the approach)
MA*** - missed approach point not at a
n
runway end (e.g., MA12 or MA21R)
RW*** - missed approach point at a
n
runway end (e.g., RW23L or RW 02)
A missed approach waypoint, either MA***
or RW***, is always in the approach.