KLM MD-11 - Description and Operation; Introduction; General

MD-11 Flight Crew Operations Manual
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Automatic Flight Chapter Auto
Description and Operation Section 10
Auto.10.1
Auto.10 Automatic Flight-Description and Operation
Introduction
The purpose of this chapter is to provide an automatic flight system (AFS) general
description that can be used to augment the MD-11 computer based training
(CBT) program. This chapter must not be used as a procedures guide.
It is recommended that the user become familiar with the FMS chapter in this
manual since the AFS system closely interfaces with the FMS.
Complete AFS procedures are described in the MD-11 Flight Crew Operating
Manual Operating Procedures.
General
The aircraft is equipped with an Automatic Flight System (AFS) for guidance
from takeoff to landing.
The two AFS flight control computers (FCC) receive data from:
• Airframe sensors.
• Air data computers.
• Engine control computers.
• Flight Control Panel (FCP).
• Various other sources.
The FCCs process the data and send:
• Display signals to the EIS CRTs.
• Control signals to the pitch, roll, yaw, and thrust actuators.
The AFS provides the following functions:
• Automatic ILS approach.
• Longitudinal Stability Augmentation System (LSAS).
• Speed envelope limiting (autothrottle and LSAS).
• Dual autopilot (AP), Flight Director (FD) and autothrottle system
(ATS)/engine trim control.
• Automatic pitch trim in AP and LSAS.
• Full-time parallel actuation roll Control Wheel Steering (CWS) with roll
attitude hold when the AP is not engaged.
• Windshear warning with AP, FD, and ATS compensation.
• Yaw damping/turn coordination.
• Elevator Load Feel (ELF) control.
• Flap limiting (FL).
October 02, 2006