WIND DRIVEN 164 FOOT SAILS FOR CARGO SHIPS

DAYS OF SAIL POWERED CARGO SHIPS MAY BE BACK WITH US ON A BIG SCALE

“Using today’s technology, it’s possible to make big sails, and to control them automatically,” UT professor Kiyoshi Uzawa told DigInfo. “Also, navigation technology includes networked maritime information and weather forecasting, so ships like this can travel safely. Using wind energy, as in old-fashioned sailing ships, is actually feasible.”

Each five-segment collapsible sail, estimated to cost about US$2.5 million, will be hollow and constructed of durable, lightweight aluminum and fiber-reinforced plastic. Similar in shape to an aircraft wing in cross section, the sails can be positioned independently of one another to maximize thrust and, while at anchor or in bad weather, can telescope down in what is known as “vertical reefing.”

Uzawa anticipates that, with basic research completed, the Wind Challenger Project (WCP) group will be able to consider construction of a reduced-size prototype in the next few years to fully prove the concept. If all goes as planned, sea trials could begin as soon as 2016. If results from scale model wind tunnel tests and computer simulations bear out in the real world, he believes the sails could pay ultimately for themselves in five to ten years.

Due to the varying nature of cargo vessels, it seems likely that the WCP technology will be better suited for low-slung bulk material ships (ore, grain, oil) than for sea container ships, say, which stack freight high above deck. The group is not short on innovation, however, so it’ll be interesting to see how that issue is approached.

It appears that a new era of tall, greener ships could be just over the horizon.

Source: DigInfo via Akihabara News

Check out the DigInfo video below to learn more about the new sails.

Sourced & published by Henry Sapiecha

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