HydroFrog 25 Multi-purpose USV

2.5 m multi-purpose catamaran USV

IP65 rated swappable battery packs — overcharge, over-discharge and overheat protection built in
Robust flame-retardant hull — high-toughness special polymer material
Open truss structure — flexible carrying capacity for a wide range of survey instruments
Modular, one-person setup — set up and dismantled in minutes; folds into a small SUV
Actively cooled equipment compartment — protects onboard equipment in high-temperature environments
Self-developed electric thrusters — easily replaceable in the field
Fully automated operation — mission plans uploaded and executed wirelessly

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Overview Technical Specifications Case Study Download

HydroFrog 25 is a multi-purpose unmanned vessel system developed and produced by OPT. 2.5 metres in length, HydroFrog 25 utilises a catamaran structure with stable rolling, and an open truss structure in the centre, which allows it to carry single-beam and multi-beam echosounder, sub-bottom profilers, ADCPs, multi-sensor instruments and other equipment to carry out different scenarios and tasks.

The HydroFrog 25 features replaceable and expandable IP65 rated battery packs, electric propulsion and a self-developed power management system for long operating time, safe and stable charging, and environmental friendliness. The main connections can be quickly setup and dismantled, allowing the vessel to be assembled, mission equipment installed and deployed by one or two people in minutes. It could be folded up in a small SUV for transport.

HydroFrog 25 is equipped with a self-developed sound velocity profiler winch, which can collect the sound velocity profile data of the target area via surface control software of the USV. We can also provide a full set of mobile USV LARS system, which is suitable for most challenging project areas.

Instrumentation Capability

HydroFrog 25 instrumentation capability: multibeam echosounder, sub-bottom profiler, side scan sonar, ADCP

Applications

Geological and geophysical surveys

Hydrological and water quality surveys

Underwater rescue and disaster warning

Hydrographic surveys of ultra-shallow water, harbours and reservoirs

Underwater structural and offshore surveys

Environmental monitoring

Technical Specifications
Dimension (Operation)	2.5 m (L) x 1.25 m (W) x 0.7 m (H)
Dimension (Transportation)	1.6 m (L) x 1.2 m (W) x 0.6 m (H)
Weight	30 kg (incl. lifting fin, excl. battery and accessories)
Payload	50 kg
Seaworthiness	Sea State 3, Wind Force 4
Survey Speed	4 kn
Maximum Speed	10 kn
Duration	10 h at survey speed
Propulsion	2 x 2.5 kW electrical thrusters
Hull Material	Flame retardant and environmentally friendly special polymer materials
Battery	114 Ah, 37 V lithium battery, IP65 waterproof, puncture-resistant and crush-resistant
Onboard Industrial PC	Windows 11 (supports customer-installed payload control software); 13th-gen i5-1340P, 16 GB RAM, 512 GB storage; 3 x Gigabit RJ45, 2 x DB9 RS232, 1 x Thunderbolt 3
Ground Station	Standard 7-inch industrial remote control, range up to 2 km (optional 10-inch large-screen unit); optional mesh bridge extends the link to 3 km
Profile Winch (Optional)	Max cable length 100 m, max spooling speed 0.5 m/s, web browser and remote control supported, payload capacity 6 kg; dimensions 16 × 12 × 12 cm, weight 2 kg