Check out the specs on the Excalibur class:

Dimensions:
Overall Length: 350 meters
Overall Draft: 72 meters
Overall Beam: 128 meters
Displacement: 990,000 metric tons

Defensive Systems:
Advanced Deflector Shield Generators
Reinforced Tritanium Alloy Hull

Velocity:
Cruising: Warp Factor 7
Maximum: Warp Factor 9.6
Offensive Systems:

Fore and Aft Type X Phaser Arrays
Fore and Aft Photon Torpedo Launchers

Read more about the Excalibur Class Starship at the official site:
NCC-94547 Excalibur | Star Trek Online Official Site