Rotor sails could reduce cargo ship fuel consumption by 20%

Article URL: https://metropolitan.fi/entry/rotor-sail-helps-finnish-ferry-viking-grace-reduce-fuel-consumption

Comments URL: https://news.ycombinator.com/item?id=17005769

Points: 21

# Comments: 8

from Hacker News: Front Page https://ift.tt/2FOs6aq
via