第五福竜丸
Built in March 1947 and launched from Koza, Wakayama, the boat was originally named . It was a bonito boat and moored in Misaki Fishing Harbor, Kanagawa Prefecture. It was later remodeled into a tuna fishing boat. In 1953, it moved to Yaizu Port, Shizuoka Prefecture, with a new name, "Daigo Fukuryū Maru", translated as "Lucky Dragon No. 5" or the "Fifth Lucky Dragon".