Ironclad Warships
The Ironclad warship is known as the "turtle ship" because of its rounded "shell" decking which was protecting the crew. The deck was covered with iron spikes to repel boarders. This warship was steam-propelled so they moved at a faster speed than ships before and was also harder to destroy. Ironclads were used for high seas battleships, coastal defense ships, and long-range cruisers.