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Sky Sail and Helicopter in 'Near Miss': A Danger to Aircraft?
Science & Tech  (tags: shipping, skysails, helicopter, technology, performance, news, investigation, interesting, environment, concept )

Daphna
- 62 days ago - treehugger.com
It's been a while since we heard about Sky Sails kite propulsion system, which was promising that its retrofitted system could save anywhere between 20-40% on fuel costs on your average ship. (You can check out video of Sky Sails in action too.) While pro
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