Northrop Grumman’s ALMDS can be installed on several aircraft types. Credit: US Navy/ Northrop Grumman.
Northrop Grumman has completed the delivery of its first Airborne Laser Mine Detection System (ALMDS) sensor pod to South Korea.
The development forms part of a 2023 contract awarded by Korea Aerospace Industries (KAI), which includes supplying ALMDS technology and providing comprehensive technical support for the Korean Mine Countermeasures Helicopter (KMCH) programme.
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The ALMDS system is currently operational with both the US Navy and Japan Maritime Self-Defense Force, offering rapid detection and classification of mines in coastal waters.
It operates effectively around the clock and does not require tethering, enabling high-rate area searches. The system also delivers precise geolocation of targets to assist in the neutralisation of mines from various helicopter platforms.
Northrop Grumman’s AN/AES-1 ALMDS unit is produced in the US and is capable of detecting, classifying, and locating floating and near-surface moored mines.
To date, Northrop Grumman has delivered 24 ALMDS units to the US Navy and four units to Japan’s maritime forces.
Northrop Grumman multi-domain command and control programs, vice president Janice Zilch said: “ALMDS exemplifies Northrop Grumman’s ability to deliver trusted technology for critical missions, consistently performing where it matters most.
“Our collaboration with KAI shows our commitment to advancing defence capabilities together with Korean industry and delivering vital capabilities, ensuring the safety and security of our allies.”
Earlier in 2025, Northrop Grumman signed a memorandum of understanding (MoU) with Hanwha to support the KMCH programme.
Under this agreement, Hanwha will manufacture parts for the ALMDS hardware components necessary for the helicopters.
In addition, Northrop Grumman entered into a MoU in August 2024 with South Korea’s Genohco.
This collaboration focuses on advancing South Korea’s mine countermeasures capabilities, leveraging Genohco’s local manufacturing strengths in defence and aerospace communications for the production of ALMDS components.
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