Acronyms and Abbreviations

AAIB

Air Accident Investigation Branch

MATZ

Military Aerodrome Traffic Zone

AFIS

Aerodrome Flight Information Service

METAR

Meteorological Terminal Aviation Routine

AIAA

Area of Intense Air Activity

mg

Milligrams

AIP

Aeronautical Information Publication

mL

Millilitres

AIS

Aeronautical Information Service 

MORS

Mandatory Occurrence Reporting Scheme

ALARP

As Low As Reasonably Practicable

MTOM

Maximum Take-Off Mass

ANO

Air Navigation Order

NATS

National Air Traffic Service

AMSL

Above Mean Sea Level

NOTAM

Notice to Airmen

ATC

Air Traffic Control

OA

Operational Authorisation 

ATCU

Air Traffic Control Unit

OM

Operations Manual

ATZ

Aerodrome Traffic Zone

OSC

Operating Safety Case

CAA

Civil Aviation Authority

OS

Ordnance Survey

Cam-Op

Camera Operator

PDRA

Pre-Defined Risk Assessment 

CAP 

Civil Aviation Publication

PIB

Pre-Flight Information Bulletin 

Con-Ops

Concept of Operations

PMU

Power Management Unit

CU

Command Unit

RAE

Recognised Assessment Entity

DAA

Detect And Avoid

RF

Radio Frequency

EM

Electro-Magnetic

RP

Remote Pilot

ENSF

Enhanced Non-Standard Flight

RPZ

Runway Protection Zone

EP

Emergency Procedure

RTH

Return to Home

ESC

Electronic Speed Controller

RLOS

Radio Line of Sight

FIR

Flight Information Region 

SI

Statutory Instrument

FIS

Flight Information Service

STS

Standard Scenario

FOD

Foreign Object Debris/ Damage

TAF

Terminal Aerodrome Forecast

FRC

Flight Reference Card 

TOLS

Take-Off/ Landing Site

FRZ

Flight Restriction Zone

UA

Unmanned Aircraft

GPS

Global Positioning System

UAS

Unmanned Aircraft Systems

HIRTA

High-Intensity Radio Transmission Area

UKAB

United Kingdom Airprox Board

HSE

Health and Safety Executive

UKFAT

United Kingdom Frequency Allocation Table

iOSD

Intelligent On-Screen Display

VLOS

Visual Line of Sight

IMU

Inertial Measurement Unit

EVLOS

Extended Visual Line of Sight