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Sign upFebruary 8, 2024
Airbus
Leiden
In a historical wind propulsion deal, the French shipowner, Louis Dreyfus Armateurs SAS and the Finnish mechanical sail company, Norsepower Oy Ltd, have announced that the Norsepower Rotor Sail™ technology will be installed on the new low-emission RoRo fleet to be chartered to Airbus. The new low-emission vessels, which will be used to ship aircraft components for Airbus, will each be powered by a combination of six 35-meter tall Norsepower Rotor Sails and two dual-fuel engines running on maritime diesel oil and e-methanol. Additionally, routing software will optimise the vessels’ journey across the Atlantic, maximising wind propulsion and avoiding drag caused by adverse ocean conditions.
By 2030, the new fleet is set to achieve a groundbreaking milestone in sustainable shipping by cutting Airbus' annual transatlantic CO2 emissions by an impressive 50% compared to 2023 levels. This significant reduction underscores the transformative potential of combining innovative wind propulsion technology with advanced dual-fuel engines and intelligent routing software.
The solution is based on the Magnus effect where a rotating cylinder creates a lift force when it encounters airflow created by the wind. This lift force is due to a pressure difference on different sides of the cylinder. The lift force induced by the Magnus effect can be as much as ten times higher than what the conventional sail could provide, making the principle ideal for auxiliary propulsion on large scale commercial vessels. With Rotor Sails it is possible to reduce the fuel consumption of the ship, saving in fuel costs, but also reducing the emissions related to shipping. Fuel consumption of a ship is typically reduced by 5% to up to 20%. The solution is suitable for approximately 25 000 vessels globally including tankers, passengers vessels, and bulk carriers.
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