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Will rewrite history as we know it
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this post was submitted on 31 Oct 2023
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Isn't it like 20% fuel reduction only? Not insignificant
The article claims up to 90% reduction in emissions
There are lots of grand claims for the potential of wind assist on ships, but I suspect they're based on idealized physics and best cases. Actual results seem to be less impressive https://www.ics-shipping.org/news-item/potential-of-wind-assisted-propulsion-hindered-by-perception-and-funding-challenges/
They claim 5-10% fuel savings, which is decent, but not earth shattering. Pyxis, which started operation in August with two big wing-sails, is likely to be the best current practical evidence, but I haven't been able to find any results online. Speculation that it might reduce fuel consumption by 3 tons/day, which is about what you could get just by slow steaming.
You see all sorts of claims on Tradewinds and Lloyd's List, hard to know what the facts of the matter are. None of my clients (as far as I know) use them, so no first hand experience for me.