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It was capable of sailing 75 miles (121 km) in one day, held a crew of about 20-30, and knarrs routinely crossed the North Atlantic in the Viking Age, carrying livestock and goods to and from Greenland and the North Atlantic islands.
The Vikings built fast ships for raiding and war. In a raid, a ship could be hauled up on a beach and the men would jump out to fight. They could make a quick getaway if they were chased. A big Viking longship would be about 30 metres long and could carry 60 men.he Vikings built fast ships for raiding and war. In a raid, a ship could be hauled up on a beach and the men would jump out to fight. They could make a quick getaway if they were chased. A big Viking longship would be about 30 metres long and could carry 60 men.