L25
About
About L25
L25 is an offshore survey USV built for hydrographic and geophysical data collection, including site investigations, pipeline inspection and seabed characterization. Its deck supports towing equipment, an automatic instrument lifter and several wet-end payload positions.
Twin diesel outboards and an onboard generator support operation at up to 10 knots and Sea State 3. Optional fuel tanks extend endurance to 130 hours at four knots, while radar, cameras, AIS and autonomous navigation provide supervised mission execution.
Observed use
Exact-product configurations are shown without inferring supply, purchase, customer status, standard fit, deployment or partnership.
- Hong Kong-Zhuhai-Macao Bridge survey
Pilot - Connected - Physical - L25 conducted multibeam mapping around underwater bridge infrastructure.
Source
Timeline
- Five OceanAlpha L25C USVs complete Greater Bay Area seabed survey
2022-09-01 - Deployment - Five L25C vessels divided the Wanshan West survey into independently navigated work blocks around one mother ship. The fleet surveyed 2,728 square kilometres and ran 25,560 kilometres of survey lines. The mission finished in 55 days against an 80-day plan, while OceanAlpha reported a 30% reduction in operating costs.
Source