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Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
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
TURN 2
The holding pattern entry type is based on geometry, as shown in
Figure 6--86.
DIRECT ENTRY - -
OUTBOUND LEG
DIRECT ENTRY - -
TURN ONE
OUTBOUND LEG
Navigation
6-108
Honeywell International Inc. Do not copy without express permission of Honeywell.
INBOUND LEG
LEG LENGTH
OUTBOUND LEG
Figure 6- -85
Typical Holding Pattern
5 DEG
HOLD FIX
INBOUND LEG
Figure 6- -86
Entry Geometry
N
INBOUND COURSE
HOLD FIX
TURN
DIRECTION
TURN 1
TEARDROP
ENTRY
70 DEG
TURN 1
PARALLEL
ENTRY
fms049173.01
A28- - 1146- - 181
REV 3 Mar 2009
fms049170.01
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