Getting to Grips with Aircraft Noise

Flight Operations Support & Line Assistance
Getting to grips with aircraft noise
8 - FLYING A NOISE ABATEMENT
DEPARTURE PROCEDURE
8. FLYING A NOISE ABATEMENT DEPARTURE
PROCEDURE
8.1. BACKGROUND
When a specific noise abatement procedure has to be applied during normal take-off
(namely NADP), it is worth accurately storing the information describing it in the FMS.
This is done to reduce pilot workload in the cockpit, thereby getting the utmost level of
flight safety. This section provides some guidance on how to fly a Noise Abatement
Departure Procedure when established, for current FMS standards and the future FMS
2 release 1A.
8.2. FLIGHT MANAGEMENT GUIDANCE COMPUTER (FMGC)
REMINDERS
8.2.1. FLIGHT MANAGEMENT AND GUIDANCE SYSTEM (FMGS)
STANDARD 1 (SO-CALLED “LEGACY”)
Each FMGC has its own database, one field of which contains customized and standard
navigation data such as navaids, waypoints, airways, en-route information, holding
patterns, airports, runways, procedures (SIDs/EOSIDs, STARs, etc.), company routes,
fuel policy, alternates.
The airline updates this part every 28 days in sync with the ARINC cycles, and is
responsible for defining, acquiring, updating, loading, and using this data.
The other field contains pilot-stored elements that enable the pilot to create 20
waypoints, 10 runways, 20 navaids, and 3 routes.
8.2.2. FLIGHT MANAGEMENT AND GUIDANCE SYSTEM (FMGS)
STANDARD 2 (SO-CALLED “PEGASUS”): FLY-BY- WIRE ONLY
Each FMGC contains these main databases:
1. The Navigation database contains standard navigation data: navaids, waypoints,
airways, en-route information, holding patterns, airports, runways, procedures
(SIDs/EOSIDs, STARs, etc.), company routes, alternates. The airline updates this
part every 28 days, and is responsible for defining, acquiring, updating, loading, and
using this data.
2. The Airline Modifiable Information (AMI, also referred to as the FM Airline
Configuration file) contains, amongst others the airline policy values such as
the THR RED altitude, ACC altitude, EO ACC altitude.
3. The Aircraft Performance database, which comprises the Engine model, the aero
dynamical model, and the Performance model. The airline cannot modify this
database.
4. The Magnetic Variation database.
In addition, each FMGC contains pilot-stored elements that enable the pilot to create 20
waypoints, 10 runways, 20 navaids, and 5 routes.
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