Sovereign Class

 

General description
The Sovereign class is probably the longest ship type of the fleet, however, it is smaller than the Galaxy or Ambassador class. In 2373, the Sovereign class Enterprise-E is the most advanced ship of Starfleet. Its weapons include quantum torpedoes which are fired from a module at the bottom of the saucer hull.
Known ships
USS Enterprise NCC-1701-E
Annotations
1) No Sovereign class starship except for the Enterprise-E could be seen yet. Still, there must be at least the prototype ship USS Sovereign. Obviously the producers do not want to "waste" the new ship design in DS9, but exclusively reserve it for the cinema. The stretched appearance is a strong contrast to almost all other classes and is obviously intended to make the Enterprise-E look "fast".
2) Pre-production drawings of the Sovereign class show a saucer separation. In separated mode, the quantum torpedo tube is connected to the engineering hull.
Class specifications
Heavy cruiser
Deck count: 24
Length: 685m

Information source:
Bernd Schneider's Star Trek Website