INFRARED FLARES

 
IR Flare for Milan

Infrared (IR) flares are pyrotechnic devices, which emit raDIATions of sufficient intensity in the IR region of the electro-magnetic spectrum in addition to the visible raDIATions. These flares have two major applica-tions. When fitted in an antitank missile, they help in locating the position of the target and guides the missile to the target. The IR flares can also be used as decoys by aircraft, ships, etc. to divert the incoming IR-homing missiles.
 


DRDO has successfully developed the technology of IR flares and is a pioneer in this field. An IR flare for antitank missile SS11B1 has been successfully developed and productionised for use by the Indian Army.

An IR flare for antitank missile MILAN meeting the stringent specifications has also been developed and after a series of validation trials productionised at M/s BDL, Hyderabad. It has resulted in considerable savings of foreign exchange. The flare is being exported to other countries
 

PTA IR Flare

The “Day flare for MILAN” is used for tracking of missile with IR goniometer as a part of the wire guidance system. It emits IR raDIATions in the wavelength of 2–2.5 micron for about 12.5 s and helps tracking of the missile up to 2 km. The flare is fitted at the tail of the missile in a molybdenum sheet diffuser. Molybdenum sheet diffuser expands the flame to produce uniform raDIATion intensity. The flare gave an average output of 120 W/Str over a temperature range of -40 0C to +50 0C when fired in the wind tunnel under wind velocity of 160 m/s.


Salient Features

  • Average burning time - 12.5 s

  • Average IR output in (2-2.5 micron) - 120 W/Str

  • Diameter - 20 mm

  • Length - 65 mm

  • Weight - 50 g

  • Operational temperature - -40 0C to +50 0C

DRDO has also developed an IR flare for fitment in the tow-body of pilotless target aircraft. Four IR flares can be fitted to each tow target and can be ignited on command from the Ground Control Station (GCS). The command initiated on the ground is transmitted and relayed through Lakshya to the tow target. The IR electronics in the tow target receives the command, processes the same and ignites the IR flare.