REAV-28 USV

The REAV-28 delivers confident open water performance in a versatile 2.8m package. The USV is a class-leading choice for hydrographic, oceanographic and environmental data acquisition within inland navigation, ports and harbours or nearshore coastal worksites.

Benefits of the REAV-28

• Robust, marine-grade aluminium alloy construction

• Modular, demountable structure

• Available with a range of marketleading, front-end mission manager and autopilot technologies

• High-integrity Virtual Watchkeeper proprietary vessel control system

• WIFI and cellular communications

• Docking joystick

• Ruggedised embedded and base station computers included

• Trailer portable

Robustly constructed from marine-grade aluminium alloy, the REAV-28 has proven stability and buoyancy combined with excellent seakeeping characteristics, which make it a productive and dependable survey tool for survey contractors and coastal scientists. The USV may be optionally specified with a tightly-integrated profiling winch, providing a turnkey solution for remote survey applications.

The longitudinally-separated GNSS mountings are incorporated into the cross deck structure to maximise stiffness. HydroSurv can provide a wide variety of mountings for commercial multibeam instruments or oceanographic sensors.

The REAV-28 is controlled using an EIVA autopilot module which integrates into NaviSuite Kuda, EIVA’s hydrographic survey software bundle - a solution that excels at automated and remote hydrographic surveys. The software can generate runlines automatically, even calculating them in real-time based on collected data. This solution provides precise line-keeping with typical accuracy of +/- 15cm, even in sharp turns through speed control and real-time optimal runline generation that prevents overshooting.

The automation benefits include:

• Waypoint autonomy

• Heading control

• Station-keeping

• Manual joystick mode

With twin Torqeedo Ultralight 1103 electric outboards, the REAV-28 may be configured with either two or four 915Wh propulsion batteries providing full dayworks endurance from the USV. The autopilot system supports steering in combined vectoring and rudder modes. It also provides monitoring of the outboard motor and battery status by integrating directly with Torqeedo’s TQ-Bus, providing alarms to notify operators when the batteries are low. A separate 1,280Wh general service battery offers uninterrupted power to the embedded survey PC and command, control and communications equipment.

Live monitoring and visualisation of the mission and sensor data quality control is performed from NaviSuite Kuda on a separate base control station PC. For docking, or when otherwise needed it is possible to take control of the USV using a radio-controlled joystick.

REAV-28’s critical systems are controlled and monitored through HydroSurv’s proprietary Virtual Watchkeeper vessel control system. REAV-28 is available with a choice of industry-leading autopilot systems NaviSuite Kuda developed in closeconsultation
with HydroSurv.