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  • ViperFish
  • ViperFish
  • ViperFish
  • ViperFish
  • ViperFish
  • ViperFish
  • ViperFish
  • ViperFish
  • ViperFish
  • ViperFish
  • ViperFish
  • ViperFish
  • ViperFish
  • ViperFish

Survey hard to reach areas – even over-the horizon

ViperFish is an all-in-one ROTV system tailored to provide high-resolution data collection in autonomous USV operations. With its high stability, 3D steering and automation, it is ideal for surveying narrow areas where a precisely steered sensor platform is needed to safely stay close to the seabed.

High-resolution imaging and precise positioning

ViperFish can be equipped with several high-quality sensor options. Depending on the configuration you choose, this sensor platform is mission-ready for applications such as offshore energy seabed mapping; geophysical site inspections (UXO); subsea pipe/cable inspections; and defence (mine countermeasures, rapid environmental assessment, Intelligence surveillance and reconnaissance).

Automate your ROTV operations for optimal results and enabling autonomy

ViperFish optimises data collection. It is designed for minimal drag, resulting in a low energy cost of operations. The sensor platform is highly stable with a design that stays horizontal at all times and minimises turbulence through laminar flow.

To further optimise operations, this ROTV features a high degree of automation. Like the ScanFish ROTV range, ViperFish can automatically maintain a fixed height from the seabed, avoid obstacles at a user-defined range and follow vertical and horizontal runlines. You can upgrade your setup with a dedicated winch, optimised for USV operations.

To automate all steps from runline planning to processing, users of EIVA’s industry-leading survey software toolbox, NaviSuite, can leverage the software suite’s streamlined integration with ViperFish’s control software – for example with Vessel-Aided Terrain Follow mode, which uses MBES data (real-time or pre-survey) for early warning to achieve smoother obstacle avoidance.

Please note: Pricing is according to which sensors you choose to equip on ViperFish. Reach out to discuss what setup best meets your needs and get a quote.

This product is subject to export control, which may delay/hinder delivery to some countries, and may be subject to restrictions if re-exported.

Key features

  • Cutting a long autonomous survey story short: What you get

    Cutting a long autonomous survey story short: What you get

    Diving into the details of how ViperFish will provide high-quality data collection during manned or unmanned survey operations.

    Learn more

    Cutting a long autonomous survey story short: What you get

    Diving further into the details of how ViperFish will improve your manned or unmanned UXO (unexploded ordnance) surveys, MCM (mine-countermeasures), hydrographic operations and more

    Keep sensors at the sweet spot

    … with the robust, stable 3D steering capability keeping your ROTV at a fixed height from the seafloor

    Stable data collection and low energy usage

    … through the low-drag design which stays horizontal thanks to the active flaps and reduces the turbulence on the ROTV through laminar flow

    Streamlined survey autonomy

    … by using Flight software to display/control the position of ViperFish, perform obstacle avoidance and define your sailing route – which is as simple as selecting the area you would like to survey

    High quality, adaptable payload

    … with the sensors available including Wavefront Solstice MAS/EdgeTech 2205 SSS, R2Sonic MBES, OFG Hypermags Sonardyne SPRINT-Nav Mini and more

  • Easy deployment from any vessel

    Easy deployment from any vessel

    ViperFish can be deployed by any vessel 8 m or longer. Learn how EIVA helps make it easy to deploy this ROTV from small vessels.

    Learn more

    Easy deployment from any vessel

    ViperFish can be deployed by any vessel 8 m or longer. When deployed by eg catamaran-type USVs, the ViperFish can maintain a fixed positions between pontoons and stay in water during transfers. By single hull USVs, the ViperFish can be deployed and recovered with an A-frame.

    ViperFish has its own dedicated winch, for which you can adjust the level wind / cable exit angle to suit your setup. For fully autonomous operations, this winch can be interfaced to NaviSuite Flight, the same flight software which steers the ViperFish.

  • High-quality versatile sensor payload and components

    High-quality versatile sensor payload and components

    Dive into the sensor payload configurations, standard components, software and service options.

    Learn more

    High-quality versatile sensor payload – dive into the components

    The ViperFish is ready to deploy any and all of the below sensors. Pricing accordingly.


    • Multi-aperture sidescan sonar – Wavefront Solstice or 
    • Sidescan sonar – EdgeTech 2205
    • Multi-beam echo sounder – R2Sonic 2020
    • Magnetometer – OFG RM HyperMag


    • USBL transponder – Sonardyne WSM 6+ 1K MF Omni Directional Assembly
    • INS (Inertial Navigation System), AHRS (Attitude and heading reference system),  DVL (Doppler Velocity Log), pressure sensor – all in one – Sonardyne SPRINT-Nav Mini
    • Sound velocity sensor – Valeport MiniSVS

    Components of the ROTV

    Purchase of ViperFish ROTV includes...

    • Transportation box, heat-treated, water-resistant plywood
    • Termination
    • Altimeter, motion and depth sensors
    • NaviSuite Flight control and monitoring software
    • 2U 19" rack-mount topside power and communications unit
    • Deck cable 30 m

    Optional extras

    Software add-ons

    Hardware add-ons

    • USBL – Sonardyne Mini-Ranger 2 
    • Dedicated winch – optimised for small vessels thanks to low weight, adjustable exit angle and support for single phase power
    • Tow cable (choose from a variety of faired cable options to further reduce drag)


    • ViperFish & NaviSuite software mobilisation support & onsite training
    • Solstice mobilisation support & onsite training

    A shipwreck surveyed with ViperFish ROTV, data displayed is MAS & RM Hypermag (left), MAS (center) and MBES (right)

  • Avoid obstacles more smoothly than ever

    Avoid obstacles more smoothly than ever

    This autopilot flight mode uses your vessel’s echo sounder data as an early warning system to avoid obstacles while keeping sensors stable.

    See it in action

    Vessel-Aided Terrain Follow mode

    Avoid obstacles more smoothly than ever through automated real-time calculations – this flight mode uses your vessel’s echo sounder data as an early warning system to avoid obstacles while keeping sensors stable.

    Controlling the ROTV's movements

    Video showing the Vessel-Aided Terrain Follow mode in action, making an ROTV avoid steep obstacles on the seabed more smoothly than it would have if it were using only the ROTV altimeter sensor for obstacle avoidance – thereby achieving stability for optimal sensor performance 

    The Vessel-Aided Terrain Follow mode optimises your vertical runlines based on a DTM (online and/or pre-surveyed). The main advantages are…

    It ensures smooth obstacle avoidance, so your data collection isn’t disturbed by any sudden movements of the ROTV, which could otherwise occur if there is a large, steep obstacle, such as a boulder. This is because the altimeter sensor onboard the ROTVwould register the obstacle when closer to it, causing the ROTV to move quickly out of the way to avoid it. On the other hand, with the Vessel-Aided Terrain Follow mode, the ROTV can react ahead of time thanks to an early warning from the DTM, and therefore you have the option to make it do avoid obstacles more smoothly over time.

    You minimise risks to your ROTV by not only reliably predicting obstacles and avoiding them (as the ROTV already does) but also customising how you avoid them, so your ROTV’s vertical steering is tailored to your specific ROTV configuration (with this new mode, you can customise the area in which obstacles are avoided and the slope with which the ROTV avoids them.

    ScanFish and NaviSuite software in action

    The area highlighted in yellow is the corridor in which objects are considered relevant obstacles to be avoided using the Vessel-Aided Terrain Follow mode – and the two yellow spheres below the ScanFish model show the correction to the vertical route

    Stay safe with a failsafe

    This new steering mode is doubly designed to avoid any harm to your ROTV. The EIVA team has equipped it with a failsafe function for the unlikely case of a malfunction in the setup causing your ROTV to receive erroneous data from the synthetic altimeter calculated by NaviPac. An error in the synthetic altimeter can occur for example if you are using a pre-surveyed DTM which is outdated, as a new obstacle has appeared since then. In such a case, the priority will always be given to the minimum height registered by the altimeter mounted on your ROTV.

    Easy integration with your ROTV

    This automated steering mode is available for all EIVA ROTV systems. In addition to your vessel and any model of EIVA ROTV, this steering mode uses the following components…

    • Multi-beam echo sounder on the vessel which is towing the ROTV (optional as you can alternatively use pre-surveyed DTMs):
      • Acquires seabed data to create a real-time DTM
    • NaviSuite Kuda ProEIVA’s hydrographic survey software solution (alternatively, if using a pre-surveyed DTM, you can use NaviPac Pro or NaviPac Single User):
      • Collects multi-beam echo sounder data and creates a DTM in real time – or displays a historical DTM
      • Calculates your ROTV’s optimal vertical route based on the DTM and your settings for obstacle avoidance
      • Inputs synthetic altimeter values to your NaviSuite Flight software so you follow this route


Weight (air / water)
145 kg / 5 kg
2-10 kt (STW)
Depth rating
200 m
Dive/climb speed
0-2 m/s
Dimensions (length x width x height)
3200 x 1300 x 620 mm
Fibre telemetry
1 Gb/s
Target position accuracy
Better than 1 m (DRMS)