High Quality Content by WIKIPEDIA articles! USS ATA-216 was an ATA-214-class tug of the United States Navy built near the end of World War II. Originally laid down as Allthorn (YN-94), a net tender of the Ailanthus class, she was redesignated as AN-70, a net layer, before launch. Before completion, the name Allthorn was cancelled and the ship was named ATA-216, an unnamed auxiliary ocean tug.