Pirates of old used many types of ships, anywhere from a small sloop to a large warship. But generally they gave preference to those with the greatest speed as it would do no good to spot a potential target only to have it out-sail you. Also pirates wanted a quick escape if needed. The pirates kept their ships in good order, careening them regularly to keep the hulls smooth and clear of seaweed and other marine life. This work was essential in order to maintain their speed advantage. Two of the pirates favorite types of ships were the sloop and the schooner. The speed and shallow draft of these ships enabled the pirates to hide in relative safety in shallower coastal waters where larger warships could not enter.