Oceanalpha - Model SL20 -Autonomous Survey Boat

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

• 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.

• 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.

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.

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

• Hull Material: Carbon Fiber
• Hull Length: 105 cm
• Hull Width: 55 cm
• Weight (excl. ADCP): 17 kg
• Payload: 8 kg
• Propulsion: Waterjet
• Moon Pool: 177 mm
• Remote Control: Radio Frequency
• Remote Control Frequency: 900 MHz/ 2.4GHz
• Remote Control Range: 1km
• Data Telemetry Frequency: 2.4GHz/ 5.8 GHz
• Data Telemetry Range: 2 km
• Survey Speed: 2-5 knots (1-2.5m/s)
• Top Speed: 10knots (5m/s)
• Battery Endurance: 6 hours @ 1.5m/s
• Battery Pack:
• 1 x 33V 40Ah
• Quick Battery Replacement
• Sontek RiverSurveyor S5/M9
• Teledyne RD Instruments RiverRay
• Instrumentation:
• Teledyne RD Instruments RiverPro
• Teledyne RD Instruments RioPro
• Teledyne RD Instruments StreamPro
• Options:
• Linkquest Flowquest
• ADCP telemetry module