USS Agincourt was a Constitution-class heavy cruiser on active duty in Starfleet during the late 23rd and early 24th centuries. (Task Force Games: UFP: The Federation Sourcebook for Prime Directive) The Agincourt had the registry of NCC-1601 in Task Force Games but a registry of NCC-1813 in the Starfleet Academy video game. Agincourt's commanding officer, from 2277 to at least 2283, was Captain N'hran Th'ersa. The Prime Team embarked on the ship was known as the "Red Lightning." (Task Force Games: UFP: The Federation Sourcebook for Prime Directive)