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Soldier with Saab Carl-Gustaf M4 weapon
20 May 2026Saab receives Carl-Gustaf order from Lithuania
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19 May 2026Saab announces new Sirius Compact R-ESM for fixed applications
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18 May 2026Saab receives order for Giraffe 1X on tactical vehicles from France
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13 May 2026Saab and PGZ Group establish strategic naval domain collaboration
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Tethys

Hiring ships and research vessels is expensive. With 12” propeller-driven AUV power but glider-like endurance – the Tethys Long-Range Autonomous Underwater Vehicle (LRAUV) expands vehicle operating ranges beyond what was previously achievable -making shipless operations a possibility.

Key Features

1000 km range
Modular payload capabilities
Low-power transit or drift capabilities

Technical Specifications

Diameter12 inches
Weight~110 kg
Speed0-2.5 kts
Endurance>1000 km at 1 kt - lithium
>2000 km at 1.5 kts lithium primary
CommunicationsWi-Fi, cellular, satellite link, acoustic
Operational depth0-300 m
0-1500 m (option)

Best-in-class oceanographic AUV

Developed by MBARI in 2007 to address the need for biological monitoring missions covering ranges of up to 1,000 kilometers or more. Tethys development was driven by traditional propeller-driven autonomous underwater vehicle (AUVs) not being able to support the endurance objective while commercially available gliders could not support the size and power requirements of the payloads.

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Over-the-horizon data collection, without the ship

The vehicle can be launched from shore and controlled over-the-horizon through a user-friendly web-based mission planner accessible from anywhere in the world. The AUV makes use of Wi-Fi, cellular, acoustic, and satellite communications - enabling control through several means to meet every situation’s needs.

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