Given their stealth, submarines are the typical platform of choice for special forces operations. Alseamar’s SDV and SLV delivery vehicles get combat swimmers from platform to destination and back with maximum efficiency.
Alseamar, a subsidiary of France-based advanced technology group Alcen, specialises in underwater robots and vehicles for the maritime sector. A regular contractor to the French Navy, Alseamar has provided through-life support services for the Navy’s swimmer vehicles and tugs for the last seven years.
The company developed the Coryphene SDV for operations where divers deploy from shore, a surface vessel or a submarine with a deck shelter. Crewed by two or three divers with full diving and combat gear, this wet delivery vehicle is ideal for offensive, intelligence and logistics missions. Divers appreciate Coryphene’s high performance, ruggedness and ease of use. The precision navigation system comprises an inertial navigation system, a Doppler velocity log, a GPS and a multi-beam sonar. Powered by a brushless electric motor and a lithium-ion battery, Coryphene cruises quietly at up to 8 knots over tens of nautical miles.
In 2018 Alseamar unveiled its latest product, the Murene subsea light vehicle. This SLV is designed for assault and reconnaissance missions by one or two fully-equipped divers deploying from shore, a RHIB or a submarine to tens of nautical miles. Building on Alseamar’s decade-long experience in crewed underwater vehicles, Murene was designed by former combat swimmers and ergonomists. One of the main objectives was to make transits as comfortable as possible to ensure that the divers arrive in good condition to undertake their assignments.
The precision navigation and positioning system comprises an INS, a DVL and a GPS. Depending on the model, a bow echo sounder or sonar is provided to detect and identify obstacles. The Murene SLV has a low cost of ownership and can be deployed from a boat or submarine torpedo tube. With two propulsion pods and a high-capacity battery, Alseamar claims that the Murene offers far higher performance and manoeuvrability than the competition.
More information in Mer et Marine Euronaval 2018 Special issue : "Naval Forces : focus on french technology"