International DN
Class of ship
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The International DN is a class of iceboat. The name stands for Detroit News, where the first iceboat of this type was designed and built in the winter of 1936–1937. Wikipedia
Hull weight: 20.4 kg (45 lb)
Mainsail area: 5.57 m2 (60.0 sq ft)
Mast length: 4.9 m (16 ft)