Ice yachting is the sport of sailing and racing iceboats, also called ice yachts. It is practiced in Austria, Germany, Great Britain, Poland, Norway and Sweden, to some extent, and is very popular in the Netherlands and on the Gulf of Finland, but its highest development is in the United States and Canada. The Dutch ice yacht is a flat-bottomed boat resting crosswise upon a planking about three feet wide and sixteen long, to which are affixed four steel runners, one each at bow, stern and each end of the planking. The rudder is a fifth runner fixed to a tiller. Heavy mainsails and jibs are generally used and the boat is built more for safety than for speed. The iceboat of the Gulf of Finland is a V-shaped frame with a heavy plank running from bow to stern, in which the mast is stepped. The stern or steering runner is worked by a tiller or wheel. The sail is a large lug and the boom and gaff are attached to the mast by travelers. The passengers sit upon planks or rope netting. According to some, the Russian boats were faster than the Dutch-built ice yachts.