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  • Ran in surface mode

Autonomous Underwater Vehicle - Ran

An Autonomous Underwater Vehicle, AUV, is equipped with sensors and collects data during pre-programmed missions. It moves faster than an ROV and can therefore cover longer distances in shorter time.

The AUV at The University of Gothenburg – called Ran – has very good navigation accuracy and carries high resolution acoustic sonars and other mapping instruments. There are only a few AUV:s in the world with Ran's capacity, accessable to science. Thanks to the navigational properties, it can accomplish under ice missions, and it has been used successfully in Antarctica and under ice in Baltic sea coastal waters.

Ran is a part of the national research infrastructure MUST (Mobile Underwater System Tools), financed by the Knut and Alice Wallenberg Foundation. The infrastructure is open for external users for research purposes. Ran can also, under certain circumstances, be rented by commercial companies.

Data, performance and equipment of Ran

Manufacturer: Kongsberg Maritime A/S, Horten, Norway

Model: Hugin

Length: 7.5 metres

Weight: 1850 kg (dry)

Speed: 1-7 knots, cruise speed 4 knots

Maximum dive depth: 3000 metres

Maximum dive length and time: 300 km and 36 h

Drawing of HUGIN (pdf)

Equipped with:

  • conductivity, temperature and depth sensor (CTD), dual systems SeaBird 911 19plusv2
  • oxygen sensor, SeaBird SBE43 (dual system)
  • carbon dioxide sensor, Contros HydroC
  • nitrate sensor, SeaBird Deep SUNA
  • chlorophyll/turbidity sensor, SeaBird WetLabs ECOtriplet (FLBBCD)
  • side scan sonar (= acoustic ”camera”), EdgeTech 2205. Frequences 75/410 kHz (1-6 km range)
  • bottom-penetrating sonar (= acoustic ”X-ray camera”), EdgeTech DW216 with configurable chirp
  • navigation system: DVL-supported Honeywell Hg9900, gives accuracy of better than 0.08% of distance travelled
  • acoustic communication below surface, 2-3 km between ship and AUV
  • satellite, radio and WiFi communication in surface mode

A small launch and recovery system for near-shore work is available. A larger launch and recovery system for open waters is being procured.

A small launch and recovery system

Additional photos of the small launch and recovery system (pdf)

Drawing of small launch and recovery system (pdf)

Ran is stored and transported in a 25 foot container. In order to operate Ran, a 10 foot workshop container is also needed on board.

25 foot container to the left and 10 foot to the right

Drawing of 25 foot container (pdf)

Drawing of 10 foot container (pdf)


Excl. VAT

Research project > 2 days (2 technicians on board): 3700 EUR/day
Research project < 2 days (1 technician on board): 2700 EUR/day
Commercial project: 13700 EUR/day
Prices include service, spare parts, consumables and technical support.
Prices do not include transportation, planning, travels for technicians, mobilization and demobilization.

Ran is often used from our research vessel Skagerak, also available for research project.

Research results




Niklas Andersson
+46 31 786 95 19

Anna Wåhlin
+46 31 786 28 66

Ran startar

Page Manager: Webbredaktionen|Last update: 6/11/2020

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