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Old 12-27-2018, 12:36 PM   #11
DDW
Guru
 
City: San Francisco
Country: USA
Join Date: Apr 2018
Posts: 946
You could use a kite sail, but it will never pay for itself at current diesel prices. That is, if it is used, it will require replacement before its cost is made up by diesel savings. This isn't true just of a kite sail, but sails in general. A set of sails for my sailboat (main and mizzen only) is around $30K today. They will be good for about 30,000 miles if well treated. The main propulsion engine was $10K, and fuel for 30,000 miles costs about $18K @ $3/gal. So the sails alone are more expensive than the diesel and fuel to run it.

Buy a sailboat to sail, or because it can go many places a trawler cannot, not to save money.
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