Star Trek Expanded Universe

The USS Valorous (NCC-2053) was an Excelsior-class explorer that served in the Federation Starfleet in the 23rd and 24th centuries. (Ship Recognition Manual, Volume 4: Starships of the Original Series Era)

From 2294 to 2299 the Valorous explored the coreward regions of the Alpha Quadrant.

In 2300, the Valorous was assigned to patrol the Federation-Gorn border and remained on this assignment for three years.