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Wind-assisted propulsion is the practice of decreasing the fuel consumption of a merchant vessel through the use of sails or some other wind capture device. Sails used to be the primary means of propelling ships , but with the advent of the steam engine and the diesel engine , sails came to be used for recreational sailing only.
While the design is meant to be usable for different types of ships and even retrofitted to existing vessels, [7] the first vessel from the Oceanbird concept is planned to be a 200 m (660 ft) long roll-on/roll-off ship with a capacity of up to 7,000 cars. Such ships are optimized for transatlantic routes. The first vessel based on the concept ...
SkySails' kite propulsion from upper wind power is a traction use of high altitude wind power. Up to 100 million tons of carbon emissions every year could be saved by widespread use of SkySails technology, according to the International Maritime Organization .
A cargo ship equipped with high-tech sails saved up to 11 tonnes of fuel per day, according to findings from a six month test of the technology.. The Pyxis Ocean, owned by Japanese automaker ...
According to the Cousteau Society, "when compared to the thrust coefficient of the best sails ever built (Marconi or square types, i.e. ships of the American Cup [sic] or the Japanese wind propulsion system) that of the turbosail is 3.5 to 4 times superior and gives the system a unique advantage for the economical propulsion of ships."
Until the application of the coal-fired steam engine to ships in the early 19th century, oars or the wind were the principal means of watercraft propulsion. Merchant ships predominantly used sail, but during periods when naval warfare depended on ships closing to ram or to fight hand-to-hand, galley were preferred for their manoeuvrability and ...
Verena Frank, project manager at Beluga Shipping GmbH, SkySails GmbH's partner, further stated that "the project's core concept was using wind energy as auxiliary propulsion power and using wind as a free of charge energy". [2] This kite is connected to the ship by a cable, and controlled by an automatic pod of actuators to maximize the wind ...
English inventor Francis Ronalds described what he called a propelling rudder in 1859 that combined the propulsion and steering mechanisms of a boat in a single apparatus. . The propeller was placed in a frame having an outer profile similar to a rudder and attached to a vertical shaft that allowed the device to rotate in plane while spin was transmitted to the propell