Page 42: of Marine News Magazine (May 2026)

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Tech Feature

An example of a 24VDC

Thrusters

Sleipner ERV130 retractable thruster.

Sleipner AS

Photo of MT Andaman, [IMO number 9807968] a 30m Indian

Navy tug. Converted in 2024 for full uncrewed, remote piloting operation approved by the Indian Register of Shipping.

MDL ing costs and opens up areas and waterways that were radio controlled azimuth bow thrusters mounted in the previously no-go areas. Improved positional accuracy and lead vessel but controlled from the bridge of a pusher tug. automated procedures help low crewed and uncrewed Different parts of the world have different minimum crew- vessels carry out movements that would otherwise be dif- ing regulations relating to crew numbers based on ship ? cult or dangerous. size; in some cases, tug-barge combinations can reduce

In hydrographical survey markets, specially designed crew numbers as much as halve crew numbers. remote piloted unmanned vessels are replacing traditional The number of tugs able to be remotely controlled con- manned survey vessels, thereby allowing surveyors and tinues to increase, allowing lower manning levels with the crew to be brought ashore. The elimination of onboard captain controlling navigation remotely either ashore or accommodation allows the unmanned vessels to be much from another vessel, yet with crew remaining onboard to smaller, and with the option of operating 24/7, with full handle the towing procedures. control being exercised from shore stations. In some in- Harnessing these new opportunities is the ability to stances, control stations switch between two or more add autonomous features to the navigation and power countries according to shift requirements while maintain- management of a single vessel or ? eets of vessels. Au- ing continuous control. tomatically maintaining position saves crew hours and

Movements of vessels on inland waterways are looking reduces fuel consumption. Repetitive tasks can be del- ahead for solutions to the future crewing shortages of these egated to an autopilot with autonomous capabilities able vessels, as recruitment to these industries face decline. A to include thruster control when required. Growth in the convoy system where one captain controls several vessels ? eets servicing the offshore windfarm industry is particu- remotely is only possible with full control of the vessels’ larly appreciative of thruster equipped vessels where pre- movements enabled by thrusters. Some applications use cise movement and station keeping play an essential part | MN May 2026 42