The T'Pari class was a type of surveyor created by the Vulcans and commissioned in the year 2250. They were created to replace the older Voroth class starships used in the 21st century. Being a surveyor, the role of these vessels was exploration and conducting scientific surveys though they were armed with Type IV phasers. Internally, the ship was noted for being both cramped ans spartan for races such as Humans and Tiburonese. Despite this being the case, they were known to had served their Vulcan crews quite well and maximized their efficiency. (Last Unicorn RPG module: Star Trek: The Original Series Core Game Book)