Flettner rotor sail technology was invented more than 100 years ago. Modern need for fuel efficiency is bringing it back.

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2025-10-14T16:36:27Z

Link URL: https://www.bbc.com/news/articles/c1dqznvxylqo

Comments URL: https://tildes.net/~transport/1qpr/flettner_rotor_sail_technology_was_invented_more_than_100_years_ago_modern_need_for_fuel_efficiency

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