Japan Self-Defense Forces Navy Ordered ALMDS

Japan Self-Defense Forces Navy ordered four containers laser tracking system of sea mines (ALMDS) to protect the coastline and to ensure safety of navigation at sea.
This is the first signed "Northrop Grumman" contract for outright sale of the foreign system to the customer.


ALMDS intended for equipping the armament of Japanese naval helicopters MCH-101 (AW-101) production of "Agusta / Uestland" / "Kawasaki." It is expected that they will significantly improve the efficiency and effectiveness of demining tasks. 

"Northrop Grumman" will supply and integrate ALMDS with Japanese companies, "Kawasaki Heavy Industry" and "Fuzhitsu Limited."


ALMDS system is designed to detect, locate and classify floating, bottom, and anchor marine mines. 

Pulsed laser beam in the "fan", "illuminates" the water, and four sensitive cameras are monitored in the illuminated sector. Target detection algorithm identifies suspicious objects while maintaining their image for the classification of experts after the completion of the flight.


The new technology significantly reduces the time interval between the detection and neutralization of mines, compared with existing systems.

Previously, under the designation of ALMDS AN/AES-1 helicopters were purchased for the MH-60S U.S. Navy. Delivery of these systems the Japanese Navy will increase the ability for interaction between American and Japanese Navy in joint operations.


Earlier, in October 2011, "Northrop Grumman" was chosen as a supplier of systems for the AQS-24A helicopters MCH-101 naval defense of Japan. AQS-24A side-scan sonar includes a high resolution to detect, locate and classify bottom and moored mines in real time and the laser line-scanning device for high-precision optical identification of mines and other objects. AQS-24A allows the simultaneous use of sonar and laser, significantly improves the speed of detection and clearance.


Japan Self-Defense navy ordered 11 helicopters MCH-101 to replace 10 older S-80M-1 (MH-53EJ) «Sea Dragon" production "Sikorsky" / "Mitsubishi." Construction vehicles on the license, "Agusta / Westland" does the company "Kawasaki." The first machine was handed over to the customer in 2007. All helicopters to be delivered by 2015.