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Over-the-Horizon Naval Gunfire Scoring & Simulation System to be Commissioned by UK Royal Navy

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MetOcean’s Maritime Acoustic Scoring and Simulation System (MASS) will enable Royal Navy ships to undertake self-conducted live-fire training, testing, and qualification

Iridium partner MetOcean Telematics is on track to supply the United Kingdom Ministry of Defence’s Royal Navy with its Maritime Acoustic Scoring and Simulation System (MASS). The system will enable the Royal Navy to view and analyze real-time results from fire surface gunnery exercises, air-to-ground weapons exercises, and other test and evaluation events

An innovative marine-based system, MASS is free-floating and consists of a set of operational monitoring buoys. These buoys transmit acoustic event data, point of impact, and precise time over the Iridium® satellite network to both on-ship and land-based command posts for real-time analysis. This permits navies to conduct training activities at secure locations while deployed at sea.


The MASS solution minimizes the human and environmental risks associated with land-ranges and helps eliminate costly travel time, personnel resources, and excessive fuel costs for all Navies. The Royal New Zealand Navy awarded MetOcean a similar contract for MASS in 2018.

“With MASS, navies now have a superior option to efficiently and safely conduct training activities at sea,” says Iridium Executive Vice President of Sales and Marketing, Bryan Hartin. “More and more navies around the world are seeing the unique value offered by this solution.”

A copy of the full announcement from MetOcean can be found here: Royal Navy on Target with MASS

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