The Armadillo class of tankers were those Type Z-ET1-S-C3 Liberty tankers that were commissioned into the United States Navy. They were given the hull classification symbols of unclassified miscellaneous vessels. This group of Liberty based tankers all served in the United States Navy during the Second World War. Each ship was commissioned in late 1943, and decommissioned in the summer of 1946. These ships primarily served in the Asian-Pacific theater of the war. They brought aviation gasoline to remote islands in the south Pacific, required for the many reconnaissance missions.