SUMMER TRAINING ON

AIRPORT AUTHORITY OF INDIA

PRESENTED BYAMAN DUBEYMD SHAKIB

PRADEEP CHOUDHARY

AAI IS AN ORGANISATION WORKING UNDER THE MINISTRY OF CIVIL AVIATIONS.

It came into existense in 1st april 1995. Airport – 1.International 2.National (domestic) 126 AIRPORT 11 INTERNATIONAL AIRPORT 89 DOMESTIC AIRPORT 26 CIVIL ENCLAVE

AIRPORT AUTHORITY OF INDIA

CNS

Communication

Navigation

Surveillance

CNS

The International Civil Aviation Organization (ICAO), is a specialized agency of the United Nations.

The Air Navigation Commission (ANC) is the technical body within ICAO.

ICAO defines the protocols for air accident investigation followed by transport safety authorities in countries.

International Civil Aviation Organization

ICAO Letter DesignationA- Alpha J- Juliet S- SierraB- Bravo K-Kilo T- TangoC- Charlie L- Lima U- Uniform

D- Delta M-Mike V- VictorE- Echo N- November W-WhiskeyF- Foxtrot O-Oscar X- X-rayG-Golf P- Papa Y- YankeeH-Hotel Q-Quebec Z- ZuluI - India R- Romeo

For example- Registration for Indian Territory is VT(Victor Tango).

Function of RCDU.o Site Selectiono Planningo Installationo Testing and Alignmento Calibration

Radio Construction And Development Unit(RCDU)

The system is capable of carrying out the flight testing of following facilities:

ILS DME VOR NDB

Flight Inspection Unit (FIU)

RUN WAY LLZ ANT

1000to1500ft

LLZ BLDG

200 ft

GPGP & DMEANTENNA

1000ft

Runway threshold

MMOM

3500ft4 NM

AIRCRAFT

450ft

INSTRUMENT LANDING SYSTEM LAYOUT

ILS : Instrument Landing System

Glide Path

ILS GP

ILS Localizer

Localizer (LOC) is the lateral component for the runway centre line when combined with the vertical glide slope.

Localizer is made up antenna arrays.

LOCALIZER

ILS Localizer needle

A glide slope station uses an antenna array sited to one side of the runway touchdown zone.

The centre of the glide slope signal is arranged to define a glide path of approximately 3° above horizontal (ground level). The beam is 1.4° deep (0.7° below the glide-path centre and 0.7° above).

GLIDE PATH

Glide slope Needle

The Instrument Landing System (ILS) provides a means for safe landing of aircraft at airports under conditions of low ceilings and limited visibility.

The use of the system materially reduces interruptions of service at airports resulting from bad weather by allowing operations to continue at lower weather minimums.

The ILS also increases the traffic handling capacity of the airport under all weather conditions.

INSTRUMENT LANDING SYSTEM

Distance measuring equipment (DME) is a transponder-based radio navigation technology that measures slant range distance by timing the propagation delay of VHF or UHF radio signals.

A radio signal takes approximately 12.36 microseconds to travel 1 nautical mile (1,852 m) to the target and back—also referred to as a radar-mile.

DISTANCE MEASUREING EQUIPMENT (DME)

VOR is a type of short-range radio navigation system for aircraft.

Uses frequencies in the very high frequency (VHF) band from 108 to 117.95 MHz.

Aircraft contains 2 demodulators forFM- Variable PhaseAM- Reference Phase

Contains 49 antennas in rotation (48 variable antennas and 1 fix antenna in middle).

VHF omnidirectional range(VOR)

NDB:NON DIRECTIONAL BEACON NDB GIVES THE RELATIVE BEARING.

NDB GIVES THE CLOCKWISE ANGLE BETWEEN THE NOSE OF AN AIRCRAFT AND THE NDB.

IF I.L.S IS NOT WORKING THEN NDB CAN DO THE TASK.

THANK YOU