- For other uses, see Vigilant.
History and specifications
If it followed the example of numerous other Starfleet starship classes this class presumably included a prototype ship named USS Vigilant. However no such ship has been established.
The ST website: Ships of the Line details a new Vigilant-class starship entering service in 2386, this time functioning as a tactical escort. It is unknown whether or not the succession in name implies the Vigilant-class scout had been taken out of service by that time.