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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 LADDER SEARCH page.
3L -- The LEG SPACE or distance between successive cross--track
D
search pattern legs in NM is displayed at 3L. The leg space is
modifiable on the LADDER SEARCH page.
4L -- A default SPEED of 90 kts is displayed and the speed is
D
modifiable on the LADDER 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 LADDER
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 PTRN TRK (initial track) used in the search pattern is
D
defined at 2R. The 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.
Prior to activation, entry of any valid track value in 2R is permitted.
The initial track is modifiable on the LADDER SEARCH page.
3R -- The PTRN WIDTH (pattern width) in NM is defined at 3R. The
D
pattern width is considered the total distance from 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. A turn anticipation
distance is added to the pattern width so that the aircraft over--flies
the entire width of the pattern defined by the pilot.
The pattern width is modifiable on the LADDER SEARCH page.
A28- - 1146- - 181
REV 3 Mar 2009
Honeywell International Inc. Do not copy without express permission of Honeywell.
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