SL20 profile

Autonomous Survey Boat

A compact and portable unmanned surface vessel for for hydrographic and bathymetry surveying

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Dedicated pool for instruments

The 177 mm-wide moon pool supports flexible deployment of different instruments like ADCPs and echo sounders. 

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Auto-pilot And Realtime Data Telemetry

  • The SL20 USV supports both remote control mode and auto-pilot mode, performs great line tracking capability.
  • The base station can be easily set up on field, data can be transmitted in real time.
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Compact and Long Endurance

  • The SL20 USV is 1 meter long and weights 17 kg, it’s easy for one man to operate and transport.
  • Powerful battery and low power consumption supports 6 hours of endurance at 3 knots.
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Adaptable to extremely shallow water

With an extremely low draft of 15cm, the SL20 USV allows you to survey freely on offshore coasts, shoals and reefs where traditional manned vessel unable to enter.

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High Speed and Well Protected Propeller

  • Waterjet  propulsion system drives the maximum speed to 5m/s
  • Safety protection avoids the propellers being intertwined with water plants or water debris.

Specification

Hull MaterialCarbon Fiber
Hull Length105 cm
Hull Width55 cm
Weight (excl. ADCP)17 kg
Payload8 kg
PropulsionWaterjet
Moon Pool177 mm
Remote ControlRadio Frequency
Remote Control Frequency900 MHz/ 2.4GHz
Remote Control Range1km
Data Telemetry Frequency2.4GHz/ 5.8 GHz
Data Telemetry Range2 km
Survey Speed2-5 knots (1-2.5m/s)
Top Speed10knots (5m/s)
Battery Endurance6 hours @ 1.5m/s
Battery Pack1 x 33V 40Ah
Quick Battery Replacement
InstrumentationSontek RiverSurveyor S5/M9
Teledyne RD Instruments RiverRay
Teledyne RD Instruments RiverPro
Teledyne RD Instruments RioPro
Teledyne RD Instruments StreamPro
Linkquest Flowquest
OptionsADCP telemetry module

 

Application Case

  • sl20
    SL20 Unmanned Boat Surveys Three Plateau Glacial Lakes in Tibet
  • water discharge
    SL20 USV Conducts Topographic Survey To A River Section
  • SL20 in France
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Video

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