NASAMS

Overview

The National Advanced Surface-to-Air Missile System (NASAMS) is a medium-range air defense system co-developed by Norway's Kongsberg Defence and America's Raytheon that has emerged as a significant counter-UAS platform, particularly against larger Group 3 drones and one-way attack UAS. Originally designed for defense against aircraft and cruise missiles, NASAMS has proven highly effective against drone threats in combat in Ukraine.

Development History

NASAMS was initially developed in the early 1990s as a joint Norwegian-American program to provide a modern, distributed air defense capability using the AIM-120 AMRAAM missile in a surface-launched configuration. The system entered service with Norway in 1994 and has since been adopted by over 12 nations. Its role expanded to include counter-UAS when the proliferation of medium and large drones created a threat that conventional short-range C-UAS systems could not address at sufficient range.

Operational Concept

NASAMS employs a distributed architecture where multiple sensors, fire control nodes, and missile launchers are networked together across a defended area. The Sentinel AN/MPQ-64 radar detects and tracks targets, and fire distribution centers coordinate engagements across multiple dispersed launchers. Against UAS threats, NASAMS can engage larger drones at ranges exceeding 25 km, providing a medium-range layer of defense that complements shorter-range dedicated C-UAS systems. The ability to fire AIM-9X Sidewinder missiles in addition to AMRAAM provides a lower-cost option for some engagements.

Future Development

The latest NASAMS III variant includes upgraded radars, new missile integration options, and enhanced networking capabilities. Kongsberg and Raytheon continue to optimize the system for the counter-UAS mission, including integration of lower-cost interceptors that improve the cost exchange ratio against drone targets.