The Merchantman was a Altair-class transport that saw service during the 23rd century. (Ship Recognition Manual, Volume 4: Starships of the Original Series Era)
In 2284, the Klingon spy, Valkris, delivered information on the Genesis device to Commander Kruge on the Merchantman, which was destroyed by Kruge after he discovered she had viewed this information. (Star Trek III: The Search for Spock)
External link[]
- Merchantman article at Memory Alpha, the canon Star Trek wiki.