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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 SQUARE SEARCH page.
3L -- The RADIAL SPACE (space between successive cycles)
D
around the search pattern is defined at 3L. Entry of a leg space value
results in the value being duplicated into the initial leg length at 3R.
Entry of a leg space value greater than the radius results in an
INVALID ENTRY scratchpad message being displayed. The leg
space is modifiable on the SQUARE SEARCH page.
4L -- A default SPEED of 90 kts is displayed and the speed is
D
modifiable on the SQUARE 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 SQUARE
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 (initial track) used in the search pattern is defined
D
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.
The initial track is modifiable on the SQUARE SEARCH page.
3R -- The INIT LEG LEN (length of the first leg) of the expanding
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square search pattern is defined at 3R. Entry of an initial leg length
value is not duplicated into the leg space (3L). When the initial leg
length is longer than the leg space, the search pattern configuration
is an expanding rectangle. A turn anticipation distance is not added
to the leg length. Entry of a leg length value greater than the radius
results in an INVALID ENTRY scratchpad message.
A28- - 1146- - 181
REV 3 Mar 2009
Honeywell International Inc. Do not copy without express permission of Honeywell.
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