Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
A28--1146--181
REV 3 Mar 2009
Flight Plan
7-46
Honeywell International Inc. Do not copy without express permission of Honeywell.
VNAV EARLY DESCENT TO CAPTURE PATH (VPATH)
An early descent to capture a path is shown in Figure 7--26.
Figure 7--26
VNAV Early Descent to Capture Path
The VNAV early descent scenario is typical when ATC instructs a
descent before the established TOD point is reached. The steps are as
follows:
D
An altitude constraint is entered at a waypoint (1). The FMS
calculates an angle and TOD (2) for the path descent.
D
The altitude preselector is set to the ATC cleared altitude (3).
D
The IAS button (4) is pushed to begin the descent.
D
As the path is approached, the vertical deviation is displayed on the
EFIS.
Summary of Contents for FMZ Series
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