the SL20 autonomous survey vessel is a lightweight and portable unmanned surface vehicle (USV) designed for hydrographic and bathymetric assessments.Featuring a versatile moon pool, it accommodates various instruments such as Acoustic Doppler Current Profilers (ADCP) and echo sounders.Constructed from carbon fiber, the SL20 spans 1 meter in length and weighs just 17 kg, making it easy for a single operator too handle and transport. Its robust battery, combined with efficient power usage, provides up to 6 hours of operational time while cruising at speeds of 3 knots.

Instrument Deployment Flexibility

① Versatile Instrument Pool

The 177 mm-wide moon pool allows for the adaptable deployment of various instruments, including:
· Revier Survey M9 ADCP
· RiverRay ADCP

② Autonomous Navigation and Live Data transmission

• The SL20 USV can operate in both remote control and autonomous modes, demonstrating excellent line tracking capabilities.
• Field setup of the base station is straightforward, enabling real-time data transmission.

③ Compact Design with Extended Operational Time

• Measuring 1 meter in length and weighing 17 kg,the SL20 is designed for easy operation and transport by a single individual.
• Its powerful battery and low energy consumption allow for 6 hours of operation at a speed of 3 knots.

④ Suitable for Shallow waters

• With a minimal draft of just 15 cm, the SL20 can navigate freely in coastal areas, shallow waters, and reefs were conventional vessels cannot access.

⑤ High-Speed Performance with Protected Propulsion System

• The waterjet propulsion system enables speeds of up to 5 m/s.
• Safety features prevent the propellers from becoming entangled with aquatic vegetation or debris.

Technical Specifications: