The Ambassador-class starship was designed in the early 24th century as a replacement for the aging Excelsior-class. It was a large leap forward for starfleet. This vessel was the first to show the phaser arrays now typical in most starfleet vessels. It was the largest starship of the Federation, and it relegated the Excelsior of being the backbone of the fleet. It was Starfleet's workhorse until the larger, more powerful, and more advanced Galaxy-class entered service in the 2360's.

 

Starships of this class:

USS Ambassador NCC-10521
USS Enterprise NCC-1701-C
USS Horatio NCC-10532
USS Zhukov NCC-26136
USS Valdemar NCC-26198
USS Excalibur NCC-26517
USS Exeter NCC-26531
USS Adelphi NCC-26849