Kite-like sail cuts ship fuel consumption up to 35%

Somewhat related; kites as wind turbines: <a href="http://www.ted.com/talks/saul_griffith_on_kites_as_the_future_of_renewable_energy.html" rel="nofollow">http://www.ted.com/talks/saul_griffith_on_kites_as_the_futur...</a>