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Wind-powered vehicles derive their power from sails, kites or rotors and ride on wheels—which may be linked to a wind-powered rotor—or runners. Whether powered by sail, kite or rotor, these vehicles share a common trait: As the vehicle increases in speed, the advancing airfoil encounters an increasing apparent wind at an angle of attack ...
The vehicle weighs about six hundred kilograms. [5] According to Jenkins, the light weight and aerodynamic shape of the vehicle allows it to attain speeds three to five times faster than the speed of the wind. [4] Greenbird is the fifth in a series of wind-powered land vehicles that Jenkins had constructed in his efforts to break the speed record.
The vehicle draws power from the faster of the two media in each case and imparts it to the slower of the two: upwind, drawing power from the wind and imparting it to the wheels and, downwind, drawing power from the wheels and imparting it to the rotor: in each case in proportion to the velocity of the medium, relative to the vehicle. [7]
A Cargill-chartered cargo ship fitted with giant, steel sails has set out on its maiden voyage.
An auxiliary engine will be used to navigate harbors and provide emergency power. [ 7 ] 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.
Land sailing. A windsport is any type of sport which involves wind-power, often involving a non-rigid airfoil such as a sail or a power kite. The activities can be land-based, on snow, on ice or on water. Windsport activity may be regulated in some countries by aviation/maritime authorities if they are likely to interfere with other activities.
Scientists from the University of Southampton are experimenting with a new wing-sail which can be fitted to vessels to use the wind to travel. Sea trials under way for wind-powered sail in bid to ...
A large sinkhole in the front yard of a Las Cruces residence swallowed two vehicles and forced the temporary evacuation of occupants from three homes Monday evening.