In this video, OceanAlpha presents the L25 Uncrewed Surface Vessel (USV), a marine data acquisition platform designed to integrate a range of survey sensors for hydrographic and geophysical operations.
Designed to operate in waves of up to 1.5 m, the L25 is the result of a five-year development programme involving more than 100 engineers and extensive real-world testing. Its catamaran hull with vertical channel walls is engineered to enhance stability and reduce wave impact, while the aluminium alloy structure supports configurable payload integration. The platform can be equipped with multibeam echo sounders, sub-bottom profilers, USBL systems, and towed sensors such as side-scan sonar or magnetometers, and has been widely deployed in survey projects.
Powered by dual diesel engines, the L25 can continue operating on a single engine, with a top speed of 10 knots, a working speed of 4–6 knots, and endurance of up to 65 hours, extendable to 130 hours. Its communication system supports wireless and satellite networks, while an AI-enabled autonomous suite enables mission planning, navigation, obstacle avoidance, and coordinated multi-vessel operations. According to the company, it offers capabilities comparable to a traditional 300-ton survey vessel, while reducing fuel consumption and carbon emissions by up to 90%.
