Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
A28--1146--181
REV 3 Mar 2009
Navigation
6-108
Honeywell International Inc. Do not copy without express permission of Honeywell.
Holding Pattern
The HOLDING PATTERN page is used to define and review holding
patterns. Holding quadrant, inbound course, turn direction, and leg
length or time of the inbound leg of a holding pattern are defined on the
HOLDING PATTERN page. A typical holding pattern is displayed in
Figure 6--85.
NOTE:
With no constraints, but a hold in descent, VNAV can set up
a path to the predicted altitude at hold, and compute VDEV
INBOUND COURSE
TURN 1
HOLD FIX
fms049170.01
OUTBOUND LEG
INBOUND LEG
TURN 2
LEG LENGTH
N
TURN
DIRECTION
Figure 6--85
Typical Holding Pattern
The holding pattern entry type is based on geometry, as shown in
Figure 6--86.
5 DEG
70 DEG
TURN 1
HOLD FIX
fms049173.01
OUTBOUND LEG
INBOUND LEG
TEARDROP
ENTRY
PARALLEL
ENTRY
DIRECT ENTRY --
OUTBOUND LEG
DIRECT ENTRY --
TURN ONE
Figure 6--86
Entry Geometry
Summary of Contents for FMZ Series
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