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Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
Procedure Turn
The procedure turn is used to reverse course during an approach. A
procedure turn is only available from approaches in the navigation
database. Using this data, the FMS constructs the procedure turn with
an outbound leg, a turn out leg, an arc leg, and an inbound leg, as shown
in Figure 6--97. Only the outbound leg and the procedure turn (PT)
angle are adjustable.
Figure 6- -97
Typical Procedure Turn
In the example shown in Figure 6--98, the ILS Runway 5 at KHOT
approach transition contains a procedure turn that begins at HOT VOR.
The procedure turn begins with an outbound leg starting at the initial
approach fix (IAF) HOSSY.
A28- - 1146- - 181
Navigation
REV 3 Mar 2009
6-121
Honeywell International Inc. Do not copy without express permission of Honeywell.
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