SL20 | OceanAlpha USV

Flexible moon pool for survey payload integration

The 17.7cm moon pool supports flexible integration of different instruments like ADCPs and single beam echo sounders.

The SL20 USV supports both remote control and auto-pilot mode, performs great line tracking capability.
The base station is easily to be set up on field for data telemetry.

The SL20 USV is 1 meter long and weights 17 kg, it’s easy for one person to operate and mobilize.
Powerful battery and low power consumption supports 6 hours of endurance at 3 knots.

With an low draft of 15cm, the SL20 USV allows bathymetry survey in super shallow water.

Duct-type thruster brings maximum speed to 4m/s
Safety protection avoids the propellers being intertwined with water plants or water debris.

Hull Material	Carbon Fiber
Dimension	(L)105 cm *(W)55 cm
Weight (excl. ADCP)	17 kg
Payload	10 kg
Draft	15 cm
Propulsion	Duct type thruster
Moon Pool	17.7cm in diameter
Communication Range	Data telemetry: 2 km Remote Control: 1 km
Remote Control Frequency	2.4GHz
Data Telemetry Frequency	5.8 GHz
Survey Speed	3 knots (1.5m/s)
Max. Speed	8 knots (4m/s)
Battery Life	6h at3kn
Battery Pack	1 x 33V 40Ah Quick Battery Replacement
Instrument	SOUTH 18S SBES
	Echologger series SBES
	Hydrobook SBES
	Sontek RiverSurveyor S5/M9
	Teledyne RD Instruments RiverRay
	Teledyne RD Instruments RiverPro
	Teledyne RD Instruments StreamPro
	Linkquest Flowquest
Options	ADCP data telemetry