Our Boy Genius Webmeister Chris is getting a new sail this spring. It's a 145% Genoa, a Tape-Drive cruising sail, here being completed at UK Sails' sail loft on still-salty City Island, NYC. Sails are one of the few things which are not mass-produced these days, but instead must be hand-made by master craftsmen - hence their extreme cost. A sail is a wind engine - a wing - an airfoil. The high-tech material adds to the cost, too: the only thing nicer than a see-through jib is a see-through blouse.