Longships, Raids, and the Conquest of England

At the heart of Viking success lay the drakkar, or langskip, a fast, shallow-drafted warship built with overlapping riveted planks (the clinker technique) around a single oak keel, propelled by both a square sail and oars. That shallow draft let crews sail far up rivers and land directly on beaches without a harbor, while a broader, deeper vessel called the knarr was purpose-built for ocean-going cargo. A single longship could carry thirty to sixty warriors, and the prow was often carved with a dragon or serpent head for both symbolic and protective effect. This naval mastery, documented by excavated ships such as those found at Gokstad and Oseberg in Norway, proved decisive for the element of surprise in coastal and river attacks across western Europe.