Rigelian scout ship

The Rigelian scout ship was a starship type in use by the Rigelian Trade Commissions in the mid-22nd century. Ships of this type were heavily armed. Rigelian scout ships were gray, slender, conical vessels with two nacelles. 

History
In mid-November 2154, a Romulan drone-ship disguised as United Earth Starfleet vessel Enterprise (NX-01) attacked and destroyed a Rigelian scout ship as part of a mission to sow dissent between local species. 17 Rigelians perished in the attack. Captain Jonathan Archer of the real Enterprise and his allies foiled the Romulan stratagem and revealed them as the perpetrators. 

On April 2nd, 2163, two Rigelian scout ships were part of an international task force led by Federation Starfleet formed in response to the Mute crisis. The two scouts successfully harried a Mute raider after it had been found by a Xarantine task force vessel. During the assault, one of the scouts was damaged.

On April 5th, the Vertians responded by surrounding the allied task force and demanded the return of their crewmembers the allies abducted from the captured raider. To prove their point, the Vertians destroyed one of the scout ships. On April 6th, Captain T'Pol of Federation starship USS Endeavour (NCC-06) "negotiated" the release of the task force by the Vertians by returning the Vertian captives and turning herself over for atonement. 

Mirror Universe
In the mirror universe, a Rigelian scout ship was destroyed by sometime before 2155.