Houthis highlight passive IR-based SAM cueing in claimed Saudi F-15 shootdown

The post describes Houthi air defenses using passive infrared sensors (FLIR/IRST-like) for detection, tracking, and missile cueing, reducing or eliminating radar emissions that would normally trigger aircraft RWR/EW warnings. It also references unconventional SAM employment including repurposed IR-guided air-to-air missiles (R-73/R-27) and Iranian-derived systems (e.g., Saqr/358), forming a mobile, concealment-focused air-defense architecture that can threaten advanced fighters.