29 Jul 2025

The size of the Sagan class - USS Stargazer

The Sagan class was a type of starship operated by Starfleet during the early 25th century. The first ship in the class, the USS Stargazer, had already received an NCC commission, and was the first of a new class of ship to utilize components derived from research on the Borg cube Artifact that was found in the Beta Quadrant.

According to the official turbolift LCARS the ship has 16 decks.

USS Stargazer turbolift LCARS (juliensauctions.com)

  • The premise for all my deck calculations: a deck is 2.5m + 0.5m for EPS cables, power cables, ... = 3m height for a deck. 
  • My calculations follow a purely mathematical approach. I do not compare bridge modules or disk heights with each other. I always pull in decks based on the rows of windows and then calculate a physically plausible room height.

bridge blueprint by CBS
For my calculation I also used the Stargazer bridge blueprints. To do this, I traced the outline of the bridge and positioned it to my deck sizes. 
Note the design on several levels of the bridge. 
Level 1: Viewscreen
Level 2: Captain's chair
Level 3: Ready Room

 

Using the dimensions given on the blueprint the bridge fits perfect into the size of decks (using the premise that each deck is 3m high). 

schematic by Star Trek Online

With a deck height of 3m, this results in a total length of 540.7m.
The official length is therefore correct. This is one of the few examples where the official length of the ship coincides with the mathematical "real" ones.

Design fact: The Sagan class has 17 decks (not 16) because one deck of the lower pylons does not appear in the LCARS blueprint.
This doesn't matter for the upper pylons, as there is only one large deck (3 decks high) where the Plamsma Accelerators are housed.

USS Stargazer - by Doug Drexler