Type S4 ship Type S4 ship may refer to: Casablanca-class escort carrier a S4-S2-BB3 ship. Gilliam-class attack transport a S4-SE2-BD1 ship. Artemis-class attack cargo ship a S4-SE2-BE1 ship. Topics referred to by the same term This disambiguation page lists articles associated with the title Type S4 ship.If an internal link led you here, you may wish to change the link to point directly to the intended article.