this post was submitted on 17 Mar 2024
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A cargo ship’s ‘WindWing’ sails saved it up to 12 tons of fuel per day (www.popsci.com)
submitted 8 months ago by ProdigalFrog@slrpnk.net to c/climate@slrpnk.net
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[–] 0110010001100010@lemmy.world 0 points 8 months ago (1 children)

Hundreds of years of innovation in water travel, and we come back to a sail. Granted, a metal one, but still a fucking sail.

[–] ColeSloth@discuss.tchncs.de 0 points 8 months ago (1 children)

There's a reason they quit, though. It's slow and doesn't let you go in every direction. The midline area of earth has winds that move mostly towards west, while the north and south portions blow mostly east.

For those curious, these sails save 12 tons per day. The average cargo ship uses around 200,000 tons per day, so around 6% better fuel economy.

[–] zaphod@feddit.de 0 points 8 months ago

The 12 tons are a best case and they represent 37% of this ship's fuel consumption, that would be ~32.5 tons a day, on average it saved 3.3 tons, ~10%.