The Gokstad ship is a 9th-century Viking ship found in a burial mound at Gokstad in Sandar, Sandefjord, Vestfold, Norway. It is displayed at the Viking Ship Museum in Oslo, Norway....Gokstad ship. HistoryLength23.80 metres (78.1 ft)Beam5.10 m (16.7 ft)4 more rows

In 1880, the Gokstad ship was discovered and excavated from the shores of the Oslofjord. 140 years later, it remains the most significant Viking Age find and a major tourist attraction for Oslo and Norway.

The Oseberg ship (Norwegian: Osebergskipet) is a well-preserved Viking ship discovered in a large burial mound at the Oseberg farm near Tønsberg in Vestfold og Telemark county, Norway. This ship is commonly acknowledged to be among the finer artifacts to have survived from the Viking Era.

The ships were made watertight by filling the spaces between the planks with wool, moss or animal hair, mixed with tar or tallow. The ships were all the same long narrow shape, with shallow draughts. This meant that they could be used in shallow water. Vikings used longships to make raids and carry their warriors.

All longships consisted of a keel, stems and a hull. A keel is the base of ship that runs along a centreline on which a hull is built. The stem is the main upright timber of a ships bow, from which the ship's sides are attached. They also had a sail and a mast.

these ships were powered by sail. and oars and relied on a strong skeleton of internal Timbers fastened to the outer planks with copper iron and wood nails at first Scandinavians incorporated this new technology by replacing their loose paddles with anchored oars. this change hugely improved the crews efficiency.

The secret of the Viking ship lay in its unique construction. Using a broad ax rather than a saw, expert woodworkers would first split oak tree trunks into long, thin planks. They then fastened the boards with iron nails to a single sturdy keel and then to each other, one plank overlapping the next.