OVERVIEW: Flare salvo (dual spectral) for aircraft is a self-protection countermeasure that rapidly deploys multiple flares emitting in two distinct infrared (IR) spectral bands. This increases the effectiveness of decoying advanced heat-seeking missiles by mimicking the complex IR signatures of modern aircraft engines.

DETAILS: Dual spectral flares are engineered to radiate energy in both mid-wave IR (MWIR: 3–5 µm) and long-wave IR (LWIR: 8–12 µm) bands, closely matching the emission profiles of real aircraft across various operational conditions. When released in a salvo, these flares provide multiple false targets, each with a more realistic IR signature than traditional single-band flares. This capability improves survivability against more sophisticated missile seekers that discriminate targets based on spectral characteristics. Dual spectral flare salvos are automatically triggered by onboard missile warning systems or manually released during evasive maneuvers.

ROLE SUMMARY:
Category: Airborne Countermeasure
Primary Use: Infrared-guided missile deception
Function: Dispensing multiple flares emitting in dual IR bands
Strong Against: Multi-spectral and imaging IR seekers, advanced heat-seeking missiles
Weak Against: Dual-mode (RF/IR) seekers, missiles with advanced IRCCM algorithms
Platform: Fighter jets, bombers, transport aircraft, helicopters with integrated flare dispensers
Integration: Controlled via aircraft’s defensive aids suite (DAS) or mission system

SOURCE:
Janes Aircraft Survivability Equipment
https://en.wikipedia.org/wiki/Infrared_countermeasure