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PA-32R-301, SARATOGA II HP
SECTION9
SUPPLEMENT 3
SECTION 4 -NORMAL PROCEDURES (CONT'D)
•
3.
Waypoint (WPT) annunciator- Prior to reaching a waypoint in the
active flight plan, the KLN 90B GPS wiiJ provide navigation along
a curved path segment to ensure a smooth transition between two
adjacent legs in the flight plan. This feature is caiied tum anticipation.
Approximately 20 seconds prior to the beginning of turn anticipation
the WPT annunciator wiiJ flash, going solid upon initialization of
the turn, and extinguishing upon turn completion. WPT is amber.
WARNING:
Turn anticipation is automatically disabled
for FAF waypoints and those used
exclusively
in SID/STARS
where
overflight is required. For waypoints
shared between SID/STARS and published
en route segments (requiring overflight in
the SID/STARS), proper selection on the
presented waypoint page is necessary to
provide adequate route protection on the
SID/STARS.
4.
GPS omni bearing or leg (GPS CRS OBS/LEG) course switch/
annunciator - Used to select the basic modes of KLN 90B operation,
either a) single waypoint with omni- bearing course (OBS) selection
through that waypoint (like a VOR) or b) automatic leg sequencing
(LEG) between waypoints. GPS CRS is white. OBS may either be
white or amber. LEG is green.
NOTE:
Either LEG or OBS will illuminate during
system self test depending upon switch
position.
5.
HSI course control
CD
knob- Provides analog course input to the
KLN 90B in OBS when the NAV/GPS switch/annunciator is in GPS.
When the NAVIGPS switch annunciation is in NAV, GPS course
selection in OBS mode is digital through the use of the controls and
display at the KLN 90B. The HSI course control knob must also be
set to provide proper course datum to the autopilot if coupled to the
KLN 90B in LEG or OBS.
ISSUED: JUNE 30, 1997
REPORT: VB-1669
5 ofl2
9-17
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