Speed Command; General Speed Command Rules - Honeywell FMZ Series Pilot's Manual

Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter

SPEED COMMAND

The FMS is capable of providing a target aircraft speed during
departure, climb, cruise, descent, approach, and go--around. The
speed is controlled either automatically or manually. The automatic
speed command contains two submodes: automatic and waypoint
constraint. In the manual speed command mode, the pilot enters the
desired aircraft speed manually on the guidance control panel. Manual
speed command mode is not available on all aircraft types.
The FMS gives speed protection for automatic speed command
modes. This speed protection is designed to prevent the aircraft from
flying too slow or too fast.

General Speed Command Rules

The current speed command is displayed on page 1 of the ACTIVE
D
FLT PLAN, shown in Figure 7--29.
A CAS and MACH are both displayed when climbing or descending.
D
Otherwise, the cruise speed command (either CAS or a MACH) is
displayed.
The active speed command, whichever is the smallest between
D
CAS and MACH, is shown in large characters.
The active speed command is also displayed on EFIS and the
D
guidance panel.
A28- - 1146- - 181
REV 3 Mar 2009
Honeywell International Inc. Do not copy without express permission of Honeywell.
Figure 7- -29
Speed Command Rules
01683.02
Flight Plan
7-49