The USS Gladstone was a Miranda-class Federation starship in service during the late 23rd century.
This ship was used in the elite Klingon Command Academy bridge crew training simulations for the Class of 2290. As such, she was encountered in the Solidak star system in a simulated mission, in company with the USS Excelsior, USS Tigress, USS Callahan and USS Anaconda. (TOS video game: Klingon Academy)