3 Oct 2024

The Size of the Excelsior II class

The Excelsior II class was a Federation starship class that was in service with Starfleet by the early 25th century. In 2401, the USS Excelsior was amongst the fleet led by the USS Stargazer to meet a Borg faction. Cadet Elnor and Commander Raffaela Musiker were both assigned to the vessel which took part in protecting the quadrant from the massive energy released by the opening of a transwarp conduit by an unknown source.

  • 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.
I have drawn decks based on the clearly visible screen opening of the bridge on deck 1. The ship was obviously designed in such a way that the number of decks is exactly based on the size of the bridge.
 
side view by Star Trek Online
 
The ship was marked with an official length of 588m.
 
With a height for each deck of 3m, the total length is 694.9m.  
If the ship were only 588m long, the decks would be 2.5m high, including the cables and technology. This would leave only 2m of headroom.
 
The original Excelsior class was also already calculated incorrectly. And this despite the fact that there was an Excelsior-MSD (Master Situation Display) with the decks.