Forces on sails to stay within the limitations of a craft's stability and power requirements, which are functions of hull (for boats) or chassis (for land craft) design. Sails derive power from wind that varies in time and with height above the surface. In order to do so, they are designed to adjust to the wind force for various points of sail. Both their design and method for control include means to match their lift and drag capabilities to the available apparent wind, by changing surface area, angle of attack, and curvature. Wind speed increases with height above the surface; at the same
Sporting-Sails sales are donated to non-profit, non-governmental social welfare programs such as Surfrider Foundation and Save the Waves Coalition. December 2010, Sporting-Sails won grand prize at the Lloyd Greif Center for Entrepreneurial Studies' New Venture Seed Competition at the USC Marshall School of Business. Nick Smith, USC Alumni Class of 2011, pitched the Sporting-Sail business concept to top investors in the greater Los Angeles, California area and was awarded $12,500 to fund the idea. Sporting-Sails has been featured in TIME, The New York Times, LegalZoom, Bear Naked Granola, Patagonia, San Francisco Chronicle, Patch Mill Valley, PSFK, Los Angeles Times, Fox News