This video provides an more in depth introduction of the PLA’s most important surface-to-air missile system, the HQ-9. Topics including:-What are the performance characteristics of the system?-How are these performance characteristics compared to previous PLA SAMs?-How is a basic firing unit of the system organized?-What is the development history of the system and how is it related to other SAM systems?00:00 – Intro, PLA’s modern IADS02:14 – HQ-9 summary02:35 – What is an engagement envelope04:27 – How older PLA SAMs compared to the HQ-907:44 – HQ-9’s performance characteristics08:18 – HQ-9 battery configuration12:14 – HQ-9’s development history14:49 – HQ-9’s connection to the S-300 and the comparison between them19:03 – Different land-based HQ-9 variants24:33 – Closing Remarks