SL20 | OceanAlpha USV

Dedicated pool for instruments

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

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.

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.

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.

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 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	177mm in diameter
Communication Range	Data telemetry: 2 km Remote Control: 1 km
Remote Control Frequency	900 MHz/ 2.4GHz
Data Telemetry Frequency	2.4 GHz/ 5.8 GHz
Survey Speed	3 knots (1.5m/s)
Max. Speed	8 knots (4m/s)
Battery Life	6 h @ 1.5m/s
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

Application Case

Small Unmanned Surface Vehicle SL20 Surveys Sallow Dock Area
SL40 & SL20 USV Measure River Velocity With ADCP in Jiangmen
SL20 USV Conducts Topographic Survey To A River Section
SL20 Unmanned Boat Surveys Three Plateau Glacial Lakes in Tibet
USV and UAV Collaborate to Map a Dam Site in Cameroon, Africa