Cog Style Sailing Ship Cogs were clinker-built, generally of oak, which was an abundant timber in the Baltic region. They were mostly associated with seagoing trade in medieval Europe, especially the Hanseatic League, particularly in the Baltic Sea region.They ranged from about 80 ft in length and had a beam of 16 to 30 ft. The Larger style cog ships could carry around 200 tons of cargo. In the 1300s, larger loads for war and commerce were handled by Cogs
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