"Greener sailing" cargo ships in SASS Wire Saloon Posted 3 hours ago 13 minutes ago, Marshal Mo Hare, SASS #45984 said: It’s worth a try. I doubt it would be enough to replace all the 20K TEU vessels sailing the seas. I can't see the "masts" making big inroads into the containership market, but for general cargo, they may have an impact. I do see the kite/parasail augmentation possibly making a significant difference in merchant shipping. The mechanism to deploy and furl the kite style sails wouldn't take much deck space, and could even be in pods mounted on the hull outside the deck.