 Despite these flaws this image has become the one most used to depict conditions on a slave ship over that of many other more accurate images.Other physical objects that also were part of slave ships are not depicted.Slave ships had security features to keep the crew safe from their human cargo, such as barricade or wall to separate them while outside; nets alongside the ship to prevent slaves from jumping overboard; and armaments to keep the ship from being taken by other ships, such as swivel guns.