The VSS T'Plana-Hath was a Vulcan T'Plana-Hath-type vessel in service during the mid-21st century. It was the first Vulcan ship to land on Terran soil.
Upon landing in Bozeman, Montana on April 5, 2063, the crew greeted the first Terran to break the warp barrier: Zefram Cochrane. However, Cochrane pulled out a shotgun and led the Terrans to kill the Vulcan crew and raid the ship. History reported that the ship was part of an invasion force. (ENT: "In a Mirror, Darkly")