Co'Nos Class Dreadnought
Fer'Vir Class Dreadnought
Co'Nos Class
Dreadnought
Engines: 18 heavy impulse engines.
FTL drive: Jump drive MkII Heavy versions.
Size length: 15 km
Size width: 11 km
Armor: Heavy capital ship armor.
Weapons: 33 heavy distruptors, 111 medium distruptors, 221 light distruptors, eight missile launchers and 14 torpedo launchers.
Shields: Energy shields 400 000
Fighters: None
Max. crew: 30 000
Norm. Crew: 10 500
Min. crew: 25
Cargo space: 3 km³
Capable of landing to planet: No.
Capable of atmospheric flight: No.
Reactors: Four large Antimatter reactors and seven large fusion reactors.
Info: A little faster version of Fer'Vir, but has decreased size, weaponry and shielding. It was designed after the Gorg War to produce a faster dreadnought than what Fer'Vir had previously been. Five of these ships were featured in the Dominion War and proved to be excellent against the biggest Dominion ships. They also proved their worthiness in the Lightness War where they were the backbone of the Vemrer fleet. A lot more of these ships had been constructed at that time. Still, at least 30% of them was destroyed during the war as well. From the surviving ones, the damaged ships were decommissioned while the working ones started to serve in the Starfleet.
Fer'Vir Class
Dreadnought
Engines: 16 heavy impulse engines.
FTL drive: Jump drive MkII heavy version.
Size length: 17 km
Size width: 14 km
Armor: Heavy capital ship armor.
Weapons: 36 heavy distruptors, 130 medium distruptors,
250 light distruptors, 10 missile launchers and 16 torpedo launchers.
Shields: Energy shields 440 000.
Fighters: None.
Max. crew: 33 000.
Norm. Crew: 11 700
Min. crew: 10
Cargo space: 3,7 km³
Capable of landing to planet: No.
Capable of atmospheric flight: Yes.
Reactors: Five large Antimatter reactors and
Eight large fusion reactors.
Info: Fer'Vir is an old design, but a powerful one. It was designed shortly after the war between UFP and Vemrers as a ship that could take on the most powerful UFP and Gigerdian vessels. The ship design was very much different and smaller at that time. The design was modified just prior of Gorg War. In which only one upgraded model appeared. Fer'Vir proved to be a very powerful ship, but not as fast as Co'Nos. It started to loose its position due to its slower speed and because of the long age of the design. Still at least 80 of these served in the Lightness War, from which 47 returned. About 20 of those were decommissioned after Vemrers joined to the UFP.

Here's picture of Fer'Vir in space.