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Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
FMS vertical guidance commands during MOT are based on pressure
altitude.
The FMS transfers the control of the helicopter to AFCS at 0.2 NM prior
to the FHAF waypoint. This ensures no excessive roll altitude and
excessive deviation from the path.
The FMS outputs the final glidepath angle to the hover waypoint for use
by the AFCS.
MOT Flight Plan
After engaging the MOT, the FMS creates and activates an active MOT
flight plan. A typical MOT flight plan is displayed in Figure 6--127.
The FMS creates and activates a MOT flight plan when the MOT button
on the guidance controller is pushed and the following prerequisites are
met:
Valid radar altitude (RAD ALT) between 50 and 2050 ft
D
Valid indicated airspeed (IAS) is greater than or equal to 60 kts
D
Valid pressure altitude
D
MOT mode is enabled and enhanced AHRS is installed by way of
D
the APM
Navigation
6-170
Honeywell International Inc. Do not copy without express permission of Honeywell.
Figure 6- -127
Typical MOT Flight Plan
A28- - 1146- - 181
REV 3 Mar 2009
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