L25 USV

Name: L25 USV
Brand: OceanAlpha

7.5 m USV for marine hydrographic and geophysical surveys with twin diesel outboards, 10 kn speed, a towing system and an auto-lifter.

Description

The L25 uncrewed surface vessel is designed for hydrographic and geophysical surveys, including site investigations, pre- and post-installation surveys, pipeline inspections and seabed characterization.

Key features

Two independent diesel outboard engines and a 3.5KW diesel generator, giving 10 kn speed
Endurance 65 hr @ 4 kn, extendable to 130h@4kn with two additional 50L fuel tanks
Towing system for autonomous towfish deployment and a mid-hull auto-lifter
Carries 2–4 wet-end payloads at once; 200 kg payload capacity
Radar, HD camera and AIS for obstacle avoidance
Communications can integrate four networks, with optional satellite

Applications

Site investigations, pre- and post-installation surveys, pipeline inspections and seabed characterization in Sea State 3.

Specifications

LOA	7.5 m
Beam	2.8 m
Max. speed	10 kn
Endurance	65 hr @ 4 kn
Payload capacity	200 kg
Propulsion	2 x diesel outboard engines, 1 x diesel generator
Deck machinery	auto lifter, towing system
Operation sea state	Sea State 3
Survival sea state	Sea State 4

WEKA Guard & WEKA Protector Type T – Boxcooler Protection System

Protection units exclusive to WEKA copper-nickel boxcoolers: the Guard shields the cooler from welding currents during construction; the Protector Type T guards against ICCP and stray currents in service and keeps the natural anti-fouling layer active — no ICAF needed.

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New England Ropes

Premium 3-Strand Nylon

High-tenacity 3-strand marine nylon with Marine Tech coating for dock, anchor and mooring lines; 5 mm (3/16 in) to 24 mm (1 in); white, black and navy.

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Klamath Boats

Windshield Boats

Welded aluminum windshield boats (16 EXW, 18 OPW, 19 GTX) on Klamath's open-boat hulls, with all-welded windshields, grab rails and an optional full canvas top.