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Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
The default turn direction is right and the turn direction is modifiable
on the PARALLEL SEARCH page.
3L -- The LEG SPACE or distance between successive cross--track
D
search pattern legs in NM is defined at 3L. The leg space is
modifiable on the PARALLEL SEARCH page.
4L -- A default SPEED of 90 kts is displayed and the speed is
D
modifiable on the PARALLEL SEARCH page.
6L -- Restores the default parameters and returns to the FMS
D
PATTERNS page or restarts the search pattern at the start position
specified at 1L.
The CLEAR prompt is available during the initial definition of the
search pattern and is available when the search pattern is not yet
active. Selecting CLEAR results in the default parameters being
restored and transitions back to the FMS PATTERNS page.
The RESTART prompt is available after the search pattern becomes
active in the active flight plan. When returning to the PARALLEL
SEARCH page, the RESTART prompt is displayed when a search
pattern is active. When RESTART is selected, the search pattern is
restarted with the displayed search pattern.
2R -- The INIT TRK used in the search pattern is defined at 2R. The
D
default heading displayed is the inbound course into the search
pattern starting position waypoint when *SEARCH* is placed on any
flight plan waypoint other than the FROM waypoint.
CUR TRK is displayed when *SEARCH* is placed on the FROM
waypoint in the active flight plan, or the inbound course from the
present position when the start position is changed from the default
value.
The initial track is modifiable on the PARALLEL SEARCH page.
3R -- The PTRN WIDTH in NM is defined at 3R. The pattern width
D
is considered the total distance on one side of the search pattern to
the other, including the distance needed for turning the aircraft. The
FMS flies half the pattern width in one direction and half the pattern
width in the other direction. No turn anticipation distance is added
to the pattern width.
The pattern width is modifiable on the PARALLEL SEARCH page.
4R -- The PTRN LENGTH in NM along the initial heading direction
D
is defined at 4R. The pattern length specifies the minimum distance
away from the starting position achieved by the search pattern
waypoints. No turn anticipation distance is added to the pattern
length.
A28- - 1146- - 181
REV 3 Mar 2009
Honeywell International Inc. Do not copy without express permission of Honeywell.
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