. . . "SS Pioneer"@en . "The SS Pioneer was a Human Charleston-class starship built by the United States of America. In 2066, the Pioneer made first contact with the Centaurians. (Ship Recognition Manual, Volume 4: Starships of the Original Series Era)"@en . "The SS Pioneer was a Human Charleston-class starship built by the United States of America. In 2066, the Pioneer made first contact with the Centaurians. (Ship Recognition Manual, Volume 4: Starships of the Original Series Era)"@en . .