LMI-1 Porpoise
The LMI-1 Porpoise is an uncrewed underwater mine clearance vehicle designed by Lyme and Martens Industries of the United Kingdom of Isselmere-Nieland to detect and subsequently destroy artificial submerged obstacles that might threaten shipping. The Porpoise is usually deployed from mine clearance ships like the Lake-class. Equipped with a Moray autonomous operation situation awareness module (AOSAM; UER.3 in United Kingdom of Isselmere-Nieland Defence Forces' service) and short-range forward and flank sonar arrays, the Porpoise uses synthetic aperture sonar technology to identify threats at distance as well as to avoid obstacles, whilst low-light-level and standard charge coupled devices (CCD) permit remote piloting in particularly hazardous environments. The Porpoise possesses four electrically-driven propulsors and two grasping arms that allow it to perform delicate manoeuvres such as placing explosive charges onto armed mines.
LMI-1
Functions: mine clearance vehicle
Service designation: DSMC.1
Dimensions: length: 2.6m; height: 1m
Mass: 685 kg
Payload: 2 × 45.4 kg explosive charges
Range: 50 km
Depth: 600m
Speed: 5-8 kts. maximum
Cost: $7.5 million, $5 million for Remote Command Station (RCS) and associated electronics.
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