Just How Big is the U.S.S. Vengeance? by galaxy1701d, journal
Just How Big is the U.S.S. Vengeance?
I've run a few very basic preliminary calculations to try to see just how massive the Dreadnought-class battleship U.S.S. Vengeance from "Star Trek: Into Darkness" is going to be. And if we take the official length of the new Enterprise as a whopping 700+ meters, this vessel is indeed going to be a giant monster.
http://images2.wikia.nocookie.net/__cb20130617065325/memoryalpha/en/images/4/45/Enterprise_and_Vengeance_face_off.jpg
John Harrison explicitly says that she's twice the size of Enterprise, and I confirmed that by doing a comparison measurement of the two CGI models. So using that and other official numbers as a basis and using very