Group : Local Air Defenses
Status : Active
Also Known As : Chun ma, Crotale NG, KSAM, K-SAM, Pegasus
Origin : South Korea
Contractors : Doosan DST, Hanwha Techwin, LIG Nex1, Thales
Initial Operational Capability (IOC) : 1999
Total Production : 414
Unitary Cost : USD $8.8 million

The Chunma, also known as K-SAM or 'Pegasus' in English, is a self-propelled short-range supersonic surface-to-air missile system. It was designed to engage airborne threats flying at altitudes of 5,000 meters and ranges of 9-10 kilometers using Command-to-Line-Of-Sight (CLOS) guidance. This air defense system is intended for protection of industrial facilities, infrastructures, mobile military units, ports and airports in the mountainous terrain found in the Republic of Korea (RoK). RoK launched the K-SAM program in 1989. In 1999, the Republic of Korea Army (RoKA) ordered the first batch of 48 Chun Ma air defense systems worth 330 million Euro under the K-SAM program with deliveries due between 1999 and 2005. A second batch of 66 Chun Ma systems worth 470 million Euro was ordered in December 2003 with deliveries due to complete in 2009 totaling 114 systems.

The Chunma missile weapon system combines the proven Crotale NG S-band surveillance radar and Ku-band tracking radar, infrared camera localizer to track the missile once fired, Identification Friend or Foe (IFF), Crotale and VT-1 surface-to-air missiles mounted on a high mobility tracked armored chassis, the same used on the BiHo self-propelled anti-aircraft gun system. A single Chunma system includes eight Crotale or VT-1 ready-to-fire supersonic missiles. The surveillance radar is capable of detecting up to 20 airborne targets at ranges up to 20 kilometers. The tracking radar can track up to eight targets at ranges of 16 kilometers. The air defense system is workable in day/nigh and all-weather conditions in heavy clutter and jamming environments. The 26-ton V-shaped chassis is powered by a Doosan D2840L 10V turbo-intercooled diesel engine rated at 520-hp.