Canvas Sails

Strong backs were useful for rowing when ships were near the coast or navigating rivers, but sails proved far more efficient on long sea journeys. They could be raised and lowered quickly and, with a good wind, could propel a ship much faster and further than a crew of oarsmen. Yet, oars were still favoured in battle; wind could not be relied upon and oars were perfect for positioning ships for ramming attacks and for short, sharp bursts of speed.