LDA and Norsepower join forces in shipping large Airbus aircraft components
In a historical wind propulsion deal, the French shipowner, Louis Dreyfus Armateurs SAS (LDA) 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, according to the company's release.
The Norsepower Rotor Sail is a modernised version of the old Flettner rotor concept that uses electric power to actively rotate the cylinder-shaped rotors on the deck. These rotating sails use the wind to produce powerful thrust, reducing fuel consumption, lowering emissions and costs.
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, for the Transatlantic route, the new fleet will generate approximately 50% fewer CO2 emissions compared to 2023. The rotor sails will feature the brand new patented Norsepower Sentient Control (NPSCTM), a real-time force measurement, control and savings reporting system. This world-first tool enables each rotor to be controlled individually. This optimises efficiency by managing the complex aerodynamic interactions between the sails and the hydrodynamic behaviour of the vessel. Extensive Computational Fluid Dynamics (CFD) and wind tunnel tests have been carried out during the design phase to optimise the sail arrangement and design.
