Welcome to Starship Sunday, presenting a new spaceframe for the Star Trek Adventures roleplaying game, filling in some gaps until official material can be released.
The theme for October, is the ships of The Original Series, presenting space frames that can be used in a campaign set around Kirk's 5-year mission on the Enterprise. This week is the quasi-canon Federation-class.
Like the Saladin-class, the Federation-class was pulled from Franz Joseph's Star Fleet Technical Manual and shown in the background of Star Trek II: The Wrath of Khan, making it somewhat canonical. The design is unusual, being one of the few designs with three nacelles. As a dreadnought, the Federation-class would be larger than the Constitution-class; given the relatively few numbers of Constitution-class starships during the 2260s (somewhere around a dozen), there would likely be even fewer Federation-class starships in service. These would be Starfleet's "big guns" that would be used in rare situations, and likely piloted by the most experienced captains.