They use modified merchant ships, outfitted with a variety of weapons. They have been modified to hold more cargo, more people, support more weapons, and not only can they go on sea, but they can go on land and some can fly.. They look like wooden pirate ships, but it's a special material called Mensengi that is stronger than metal. Their controls are relatively simple, the helm is calibrated only to respond to the touch of the first mate and captain. They respond to the lightest touch. It looks like a giant metal ball. Some pirates still use steam engines and wooden steering wheels, but the modern ones mostly prevail.