A knarr is a type of Viking ship that was primarily used for trading and transporting goods during the Middle Ages. Characterized by its broad hull and shallow draft, the knarr was designed to carry heavy cargo across the seas and navigate shallow waters. It typically featured a single mast with a square sail, allowing it to harness wind power effectively. These ships were essential for the Norse exploration and trade networks, connecting various regions across Europe and beyond. The knarr's sturdy construction made it suitable for long voyages, contributing to the Viking legacy of seafaring and commerce.