Iceboaters skim the surface at speeds up to 70 mph - Pittsburgh Post-Gazette
It takes hundreds of hours of labor to plan and build an iceboat. Most boaters in Western Pennsylvania follow the International DN class iceboating standards that dictate the length, height, weight and materials that can be used. But the rules of ...
http://www.post-gazette.com/pg/10073/1042325-140.stm