Glossary

The following abbreviations are used :

ACI
Airports Council International

APU
Auxilliary Power Unit

ATC 
Air Traffic Control(lers)

CAA
Civil Aviation Authority

CDA
Continuous Descent Approach

Chapter (numbers)
Certificated Aircraft Noise Classifications

DAP
Directorate of Airspace Policy

dB
Decibel

DfT
Department for Transport

FEGP
Fixed Electrical Ground Power unit

FEU
Flight Evaluation Unit

Ft 
Feet

GPU 
Ground Power Unit

ICAO 
International Civil Aviation Organisation

ILS 
Instrument Landing System

Nm
Nautical Mile

NPR 
Noise Preferential Route

QC 
Quota Count

UDC
Uttlesford District Council