The Judgement Class is the replacement for the ThunderStorm-Class Carrier. It is definately smaller than the Thunderstorm, holding only 50 fighters instead of the 100 that the ThunderStorm carried. But it has singificantly better armor, launch systems, and command and control facilities as well as vastly improved speed and manuverability.

Judgement Class Specifications
Production Data
Origin: Republic of Sunset
Class and Type: Judgement Class Fleet Carrier
Date Launched: 2321

Hull Data
Structure: 30
Size/Decks: 7/4 Decks
Length/Height/Beam: 410/50/256 Meters
Complement: 420

Operation Data
Transporters: 4 Personal, 4 Cargo
Cargo Units: 50
Shuttle Bay: 20
Shuttle Craft: 23 Size Worth (2 Personal, 1 Cargo, 50 DA-100 Fighters)
Tractor Beams: 1 AV, 2 FV
Separation System: No
Sensor System: Class 3 (C)
Operations System: Class 4 (D)
Life Support: Class 3 (C)

Propulsion Data
Impulse System: Type IV (.5C) (E)
Warp System: Type IIIA (Warp 3/6/6.5) (E)

Tactical Data
Phaser Arrays: Type IX (1F, 1PD, 1SD, 1PV, 1SV, 2A, x8, D)
Penetration: 6/6/6/0/0
Photon Torpedos: Type V (2F, 2A, 2D, 2V, 2P, 2S, x12, C)
Penetration: 7/7/7/7/7
Deflector Shield: Class 5 (D) / Class 4 (C)
Protection/Threshold: 15/3 / 14/4

All specifications are as per the Star Trek RPG.