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Cabin-boy

Cargo powered by sail

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Here is a report about a new cargo vessel which is scheduled to begin operating from St Nazaire to the Eastern USA in around 2020. It will call at Bilbao and the French territory of St Pierre et Miquelon off the coast of Canada and carry Renault cars among other things. 

https://www.google.fr/url?sa=t&source=web&rct=j&url=https://www.ouest-france.fr/economie/economie-de-la-mer/economie-de-la-mer-fin-2020-des-cargos-la-voile-vers-les-etats-unis-5990790/amp&ved=2ahUKEwjFrrbLy_LeAhUNxxoKHdu3AoYQFjAEegQIARAB&usg=AOvVaw1iFvMJX24gc3FUNbwsBwkx&ampcf=1

Meanwhile, Airbus is planning to equip one of its ships with a giant kite to help reduce fuel consumption. Presumably there is no reason why such technology would not work with ferries. 

https://www.google.fr/url?sa=t&source=web&rct=j&url=https://www.lejournaldesentreprises.com/loire-atlantique-vendee/article/en-2020-les-avions-dairbus-partiront-de-saint-nazaire-la-voile-127596&ved=2ahUKEwjFrrbLy_LeAhUNxxoKHdu3AoYQFjADegQIBxAB&usg=AOvVaw1FeJfqGbRB07HipLWTyj3e

Ed

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Well, two thoughts occur to me - one is how passengers would cope with the tilting that invariably goes with passage-making under sail.  Yachtsmen are used to it, but sailing along with a 15 degre angle of tilt could be rather unsettling for those not familiar with the phenomenon.

The second is, the effect on draught.  An intrinsic part of the hydrodynamics of sailing involves the need for deep keels to resist sideways drift in the wind.  These would substantially increase the draught of the vessel such that most BF ports woukd become inaccessible.  I suppose they could make them retracting - but retracting into what space?

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I was referring more to the kite-flying option due to space constraints and the limited passage time. I doubt the sail-equiped concept would be so easy to adapt for the reasons you mentioned. Ed. 

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With a ferry travelling at 20kts it would need a gale blowing from behind to really help, with slower cargo ships it could be more help.

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2 hours ago, Solo said:

With a ferry travelling at 20kts it would need a gale blowing from behind to really help, with slower cargo ships it could be more help.

Indeed.  And gales seem very rarely to blow from behind!

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No real benefit to ferries on short trips but on long voyages the extra thrust from wind assistance could mount up to give a useful saving, especially if you can take advantage of the trade winds.

 

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