Noise Abatement Procedure

Around all major airports there are noise monitoring sites.

If noise levels are breached, (except for an emergency) this leaves airlines and pilots liable for prosecution. Therefore airlines adopt special procedures to avoid this. I will explain briefly how this is done. There are variations but the principle is the same. SID procedures (Standard Instrument Departures) are designed to try and miss towns but  for example  Ibiza is surrounded by built up areas.  A simple take off procedure  noise abatement procedure would be as follows :-



 Know the stall speed of your aircraft (bearing in mind it increases if more bank is put on in a turn) when clear of the sensitive area restore climb power accelerate to 250 knots until passing 10000ft or Flight level 100. 

Know your power settings and pitch angle to achieve this (roughly 10 to 15 degrees pitch up.) 

Get the landing gear up as soon as you have a positive climb to avoid drag.

V2 is the safe climb out speed in the event of losing an engine for the new guys V2+15 means add 15 knots to V2 speed. IE V2 speed is 175 V2+15 =190

Climb gradient is calculated so that terrain is missed .It gives the climb out speeds and feet per minute climb required at that speed to achieve a safe climb out. If an emergency develops the pilot should be aware which is the best way to turn in an emergency.   Ie. Which side of the airfield has the high and low ground  where the built up areas are and other obstacles. All this is contained on the SID charts. Think pilot safety. A further lecture on clim gradiants is in the flight school.

Watch you  VSI  Airspeed Pitch and Bank Angle at all times be ready to correct gently.

Flaps are normally left extended for phases one and two.

Landing Noise Abatement

No procedures are in force that I am aware of.  A steeper descent path and leaving landing gear longer may assist in less noise on the approach.  This would mean a 6 degree ILS approach descending at 1500 feet per min instead of the average 850 feet per minute. Constant Descent Approach procedures are coming into force this will help.

The mandatory speed limit of 250 knots below Flight level 100 unless cancelled by ATC

Although I state lower the nose at 2000 ft this may be more. Check the SID Chart for details

Other things such as reduced use of reverse thrust on landing if it can be done safely in the hours between 2300 and 0700 local time. Minimum use of APU also are important aids to noise abatement.