doesn't really look like a dragon to me. It is a terrifying image though so I can see why the Vikings included images of dragons on the front of their ships. It was a way to intimidate their opponents.
A viking ship. "The ship sailed across the murky waters; destruction coming and lean, the boat whisked toward our way. Warn the monks!' I gazed up at the ship and instantly knew that the monks could not find anything that could save us.