Star Trek Official Datapack Star Fleet Blueprints U.S.S. Excelsior Ingram Class Plans. The Complete Set of 8 Authentic Blueprints of the Space Control Ship Excelsior. Collector’s Edition. Storage pouch has minor wear (no tears and works great for storage). Blueprints themselves are like new! This set contains 8 authentic blueprints of the Space Control Ship Excelsior, which is a prototype transwarp vessel later reclassified as a heavy cruiser within the Star Trek universe. The Excelsior-class starships, of which the Excelsior was the prototype, were a prominent type of Federation starship used by Starfleet for over a century, serving as the backbone of the fleet. The Ingram class was a competing design in the transwarp drive system project and is related to the Excelsior class through its development and eventual reclassification.