This document summarizes different types of emergency locator transmitters (ELTs) used in aircraft. It describes 5 types of ELTs: Type A or AD are automatic ejectable transmitters; Type F or AF are automatic fixed transmitters installed in aircraft; Type AP are automatic but portable; Type P must be manually activated; and Type W or S are water activated or for survival and will transmit if immersed in water. The document provides details on the features and operation of each ELT type.

1. ELT
EMERGENCY LOCATOR TRANSMITTER
PREPARED BY RAJ SEVAK
150410101046
SUBMITED TO CAPT. UMANG JANI

2. INTRODUCTION
ELT operates on 121.5 MHZ -VHF And
243 MHZ -VHF .
This device is use at the time of emergency by
transmitting frequency in surrounding space. This signal
receive rescue team by any aircraft or satellites.
2 ELT

3. PROBLEM
o The detection and location of an aircraft crash is vitally
impossible to the search and rescue (SAR) teams and to
potential survivor.
o Studies shows that while the initial survivors of an aircraft
crash have less than a 10% chance of survival if rescue is
delayed beyond two days.
o For this reason, ELTs are require for most general aviation
aircraft.
3 ELT

4. ELT MAJOR SYSTEM COMPONENT
o A Dual-frequency RF antenna.
o B Antenna interconnection cable.
o C A Remote Control / Status Indicator Module and Installation.
o D An Audio Warning Speaker
o E A Master Switch clip and installation.
o F A Stainless Steel mounting bracket with retaining strap.
o G This operation and installation manual.
o H Pointer Lifetime Warranty and COSPAS-SARSAT registration
postcards. I A high-visibility “ELT LOCATED HERE” decal for
external airframe application.
4 ELT

5. TRANSMITTER CAPABILITY
LOREM IPSUM DOLOR SIT AMET,
CONSECTETUER ADIPISCING ELIT
5 ELT

6. 1. Type-A or AD
Automatic ejectable
2. Type-F or AF
Automatic fixed
3. Type-AP
Automatic portable
4. Type-P
Personal activated
5. Type-W or R
Water activated or survival
TYPES OF ELT

7. Type A or AD
AUTOMATIC EJECTABLE
or
AUTOMATIC DEPLOYABLE
o This type of ELT automatically ejects from the
aircraft and is set in operation by inertia sensors
when the aircraft is subjected to crash declaration
force acting through the aircrafts flight axis.
7 ELT MM.DD.20XX

8. Type F or AF
FIXED (NON-EJECTABLE)
or
AUTOMATIC FIXED
o This type of ELT is fixed to the aircraft and it is
automatically set in operation by an inertio switch.
o The transmitter can be manually activated or
deactivated and in same cases may be remotely
controlled from the cockpit.
o Provision may also be made for recharging the ELTs
batteries from the aircrafts electrical supply.
o Most general aviation aircraft use this ELT type, which
must have the function automatically switch on in a
crash
8 ELT

9. Type- AP
AUTOMATIC PORTABLE
o This type of ELT is similar to type- F or AF except
that the antenna is integral to the unit of portable
operation
9 ELT

10. Type- P
PERSONAL ACTIVATED
o This type of ELT has no fixed mounting and does
not transmit automatically.
o Instead, a switch must be manually operates in
order to activate or deactivate the ELT
transmitter.
10 ELT

11. Type- W or S
WATER ACTIVATED
or
SURVIVAL
o This type of ELT transmits automatically when
immersed in water
o It is water proof , floats and operates on the
surface of water
o It has no fixed mounting and should be tethered
to survivors or life rafts by means of the supplied
cord.
11 ELT

12. THANK YOU!