The Lodya bore the large, richly ornamented canvas sail. Rowers were concealed from the sun under the shed.
For long voyages the Kievan Rus built a light, open vessel called a lodya. The Byzantines called it in Greek monoxile because it was made from a single tree, usually the hollowed-out trunk of an oak or linden. Layers of planking were secured to the hull to increase its height and oars were affixed to the planking. A single mast with a square sail made the lodya seaworthy, and it was light enough, when the need arose, for portage. Although it seldom exceeded twenty metres in length, a lodya often held a crew of forty.
In 907AD Kievan Grand Prince Oleg, with a fleet of lodyas, launched an attack against Constantinople, called Tsargrad by the Slavs. His victorious campaign proved the might and independence of Kievan Rus. According to the Chronicles, Prince Oleg "hung his shield upon the Gate of Tsargrad" and sailed back to Kiev with the treasures of his conquest.