On 10/29/2014 4:51 PM, Bruce Johnson wrote:
> Sail power is also free. Engines cost in both maintenance and fuel. When you’re scraping by very close to the margins, this can make the difference. As we head towards peak oil and beyond, this will become increasingly important. The need for improved fuel economy, for example has been the biggest driving force in commercial aviation development for decades now.

Sail also requires larger crews and ongoing rigging and sail maintenance.

Peak Oil?  That old broken down theory is still floating around?  We
have more known oil reserves today than we did fifty years ago.

--
Kurt Feltenberger
xxxxxx@thepaw.org/xxxxxx@yahoo.com
“Before today, I was scared to live, after today, I'm scared I'm not
living enough." - Me