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Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
Descent Constraints -- Descent constraints are altitude, speed,
D
and angle constraints associated with waypoints in the descent
portion of the flight plan. Altitude constraints are AT, AT or ABOVE,
or AT or BELOW. For example, entering 10000A (A following the
altitude) indicates AT or ABOVE. Entering 10000B (B following the
altitude) indicates AT or BELOW. Entering 10000 (no letter)
indicates AT. The FMS obeys descent speed constraints at and after
the waypoint containing the constraint. The FMS obeys angle
constraints from the TOD to the waypoint containing the constraint.
Normally, the FMS calculates the angle constraint based on
performance initialization. However, a specific angle constraint is
permitted to be entered at a waypoint in the flight plan.
A28- - 1146- - 181
REV 3 Mar 2009
Honeywell International Inc. Do not copy without express permission of Honeywell.
Flight Plan
7-9
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