The Jenchum Suzerainty utilized a range of starships and auxiliary craft.
Jenchum battle cruiser[]
The Jenchum battle cruiser was a starship utilized by the Jenchum Suzerainty. The Alonia was a ship of this class.
While the battle cruiser had older technology than Federation starships like the Excelsior-class USS Prospect, their weapons still could "pack a punch". (Star Trek: The Prospect Chronicles: "Starry, Starry Night") From the script.
Alonia[]
The Alonia was a Jenchum battle cruiser under the command of Captain Thelius.
In 2367, the Alonia challenged the USS Prospect's right to be in orbit of Goffan IV, but backed down once they received the authorization papers from the Prospect.
One of its shuttles went to the surface to observe, and later, assist the Starfleet away team on the planet's surface. (Star Trek: The Prospect Chronicles: "Starry, Starry Night")
Jenchum shuttlecraft[]
The Jenchum shuttlecraft was a support craft utilized by the Jenchum Suzerainty.
In 2367, a shuttlecraft from the Alonia, under the command of the Alonia's first officer Methia, went to Goffan IV to observe, then assist, the Starfleet away team performing sensor tests to detect molocine. (Star Trek: The Prospect Chronicles: "Starry, Starry Night")