To quote 'Sailing Prof' Mark Orams from is article in the NZHerald today, "Team NZ will likely be holding back some "kit" - but all teams are limited in new equipment. They are only permitted a total of four foils (and two matching spares). The main wing, hulls and the jibs (small triangular front sail) are identical on all boats. Rudders, fairings and the "aero-package" offer potential for change. Aerodynamic and hydrodynamic drag is a big deal, so additional fairings or configurations to reduce drag could be an option, he wrote." So what is aerodynamic and hydrodynamic drag? Thats not…