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A comment on A cargo ship's 'WindWing' sails saved it up to 12 tons of fuel per day. Parent comment

Re:A cargo ship's 'WindWing' sails saved it up to 12 tons of... by willcipriano on Saturday March 23, 2024 @10:13PM (#39804605)
If it works what prevented ancient people from building windmill ships?
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Re:A cargo ship's 'WindWing' sails saved it up to 12 tons of... by dotps1 on Sunday March 24, 2024 @07:14AM (#39806440)
likely lots of moving parts with a less-than-ideal place to be conducting regular repairs
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Re:A cargo ship's 'WindWing' sails saved it up to 12 tons of... by willcipriano on Sunday March 24, 2024 @11:17AM (#39807745)
My guess is it's a "equal and opposite reaction" sort of thing.
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