PPSD-20

The KM-SAM which is also known as the Cheolmae-2 or Cheongung or M-SAM is a South Korean medium range surface-to-air missile (SAM) system that was developed by the Agency for Defense Development (ADD) with technical support from Almaz-Antey and Fakel, based on technology from the 9M96 missile used on S-350E and S-400 missile systems.

Design and development
A complete battery consists of up to six 8-cell transporter erector launchers (TELs), an passive electronically scanned array (PESA) X-band multi-function phased array 3D radar, and a fire command vehicle. The radar operates in the X-band and rotates at a rate of 40 rpm, covering up to 80 degrees in elevation. It can detect targets within 100 kilometers and track up to 40 simultaneously.

The PPSD-20 is the middle-tier of Zolevskoy's three-tier aerial and missile defense system. The PPSD-20 can intercept targets up to an altitude of 15 km at a range of 40 km. It was designed to replace 9K37 Buk batteries in Zolevskoy and be made available for export.

The Republic of Zolevskoy Air Force revealed in mid-2015 that the PPSD-20 would soon enter mass production and begin delivery to the Air Force that September, replacing the Buk missile that had been in Zolevskoyan service since 1980. The system can intercept up to six targets simultaneously, and the missiles have anti-electronic warfare capabilities to keep functioning despite jamming. The system passed the military's operational requirement verification test in July 2015, and began deployment near the Ordian border in early 2016.

Operators

 * Zolevskoy