The Vahklas was a Vulcan civilian transport commanded by Tavin, the leader of its crew of V'tosh ka'tur. The vessel used a Vulcan frequency to hail other ships and was capable of visual communication. The Vahklas left the planet Vulcan in approximately 2143.
Although the crew of the Vahklas disagreed with the common interpretation of Surak's teachings, an ornament resembling the Vulcan philosopher was displayed in a room aboard the transport ship.
In 2151, the Vahklas encountered the United Earth starship Enterprise, charting the nearby Arachnid Nebula, far from the planet Vulcan. Captain Jonathan Archer, commanding officer of Enterprise, commented that he had never seen a Vulcan ship like the Vahklas before. Sub-Commander T'Pol revealed that the Vulcans had not used the class of ship the Vahklas belonged to for a long time.