L42 USV
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L42 USV

OceanAlphaChina🇨🇳
CivilianUSVsurfaceactive

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Overview

Long-endurance offshore survey USV with modular mission architecture.

L42 USV is a civilian USV platform developed by OceanAlpha in China. Long-endurance offshore survey USV with modular mission architecture. It is positioned for offshore hydrographic survey, geophysical survey, wind farm inspection, and pipeline route mappingand is listed publicly as active. Published specifications captured in this database include a published length of about 8.4 m, a reported range of about 1500 km, reported endurance of 8 days at 4 kn, reported speed of Max speed 6 kn; survey speed 4-5 kn, and payload information listed as Payload capacity 500 kg. The platform is described as autonomous / remote in terms of control and autonomy. Its concept emphasizes persistent on-water presence, modular payload integration, and lower operating burden than a comparable crewed craft. Additional context: OceanAlpha also lists aluminium catamaran hull, 400L x 2 diesel fuel tanks, and Sea State III operation.

Primary Roles

offshore hydrographic surveygeophysical surveywind farm inspectionpipeline route mapping

Notes

OceanAlpha also lists aluminium catamaran hull, 400L x 2 diesel fuel tanks, and Sea State III operation.

Technical Specs

Length
8.4 m
Range
1500 km
Endurance
8 days at 4 kn
Speed
Max speed 6 kn; survey speed 4-5 kn
Payload
Payload capacity 500 kg
Technical Documentation
Autonomy
autonomous / remote
SeaDroneWorld IDSD-S-028

Data Source

Type: official company page
Verified: 2026-04-05
View Source