The size of the USS Europa NCC-1648 - Nimitz Class

The USS Europa NCC-1648 was a 23rd century Federation Nimitz class starship operated by Starfleet under the command of Admiral Brett Anderson. In 2256, the Europa was one of the nearest Federation starships sent to rendezvous with the USS Shenzhou‎ following contact with an unidentified Klingon vessel during the Battle of the Binary Stars.

• 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.

After calculating the decks, this results in a length of 522.7m.

The Starship Collection magazine specifies a length of 383.3m. This seems very small due to the many windows of the USS Europa (25 decks). Then the decks of the ship would only have a height of 2.2m (including 0,5m EPS cables,...). That would result in an efficient room height of only 1.7m.

screenshot by trekcore.com (DIS: "Battle at the Binary Stars")

With this small length, the shuttle bay would shrink as well.

screenshot by trekcore.com (DIS: "Battle at the Binary Stars")