USS Ambassador

The USS Ambassador was a starship mentioned in several production sources, but never referenced on screen. 
It was first referenced in an internal list of starships, dated , where it was listed in reference to the , as an ship with the registry of NCC-10521. 
The ship was later mentioned in the Star Trek: The Next Generation Writers' Technical Manual (3rd ed., p. 28) and in the Star Trek: The Next Generation Technical Manual (p. 75). In the latter source, the ship's registry was given as NX-10521. 
The Ambassador was referenced in the Ambassador-class article in the and subsequent editions, as well as , where it was identified as the prototype ship with the registry NCC-10521.
==External link==
*
Category:Unused production material
de:USS Ambassador
es:USS Ambassador