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Air Lubrication For Ships Is Real. The Air Still Isn’t Free.
The interesting part of Everllence and Silverstream’s Engine Supported Air Lubrication concept is not that ships can reduce drag by pushing air under the hull. That has been known for decades, and commercial systems are already in service.
Summary
The interesting part of Everllence and Silverstream’s Engine Supported Air Lubrication concept is not that ships can reduce drag by pushing air under the hull. That has been known for decades, and commercial systems are already in service. The interesting part is where the air comes from, because air lubrication’s least glamorous problem has always been the power required to make and deliver the air in the first place. Hull air lubrication is simple in concept.
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