CSM takes delivery of wind-assisted, LNG-ready tanker duo

Wind assisted you say? Most people have no idea how painfully slow sailships are usually. I am not talking about superships for racing. Those boats are superlight so that even an overweight fellow like me would matter. But on the deadweight and the water friction of a regular cargo vessel, I would bet that the effect of and wind-catching contraption would be negligible. If the vessel wants to move it will need its engine. But the wind stuff costs CAPEX and maintenance. I also bet the real savings won’t be anywhere near those costs. 

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