Keldon class
The Keldon-class cruiser was a class of Cardassian warship utilized by the Cardassian military during the 2370s.

History  
A number of warships of this type were secretly constructed by the Obsidian Order in the Orias system in 2371. Built jointly with the Romulan Tal Shiar, these Keldon-class warships were fitted with cloaking devices, enhanced top speeds and weaponry. 

During an encounter with the Maquis-controlled , one of these vessels was heavily damaged by phaser cannon fire and six quantum torpedoes. However, due to the fact the Defiant was heavily outnumbered, the attack ended abruptly. ()

These same Obsidian Order Keldons were used in the abortive attack on the  later that year. Due to the Dominion's phased polaron beams mounted on their ships as well as their overwhelming numbers, the Obsidian Order's Keldons were destroyed with relative ease, along with the Romulan ships. ()

Technical data 
The Keldon hull was similar to the  spaceframe, with additions to the aft end and main body. 

Thomas Riker believed that three of them together could be easily defeated by a single  warship. ()

Ships commissioned 
Named
 Koranak 
Unnamed
 Unnamed Keldon-class starships

Appendices

Appearances

Background information
The Keldon-class studio model was a modification, made by Tony Meininger, of the Rick Sternbach-designed Galor-class warship, originally built by Ed Miarecki. These modifications included the addition of fins located on the aft end of the hull, and a large attachment located on the upper-middle section of the hull. The purpose of these alterations are unclear.

For further information on the model, see Keldon-class model.

The outline of the Keldon-class was displayed on a monitor in the Star Wars: The Clone Wars episode "Rising Malevolence" in 2008.

The ship was also shown on a screen in Doctor Octopus's underwater lab in the "Ultimate Spider-Man" episode "Me Time" in 2012.

Technical Manual
The following specifications, which describes this vessel as a Galor-class warship (variant), comes exclusively from the Star Trek: Deep Space Nine Technical Manual:

 Production Base: Cardassia Prime Orbital Three Assembly Facility.
 Type: Heavy Cruiser.
 Accommodation: 500 plus flight crew and troops.
 Power Plant: One and possibly two M/A warp system; two or more impulse systems.
 Dimensions: Length, 371.88 meters; beam, 192.23 meters; height: 70.13 meters.
 Mass: 2,230,000 metric tonnes (est.).
 Performance: Warp 9.6 (observed)
 Armament: Eight or more spiral-wave disruptors; one large aft disruptor wave cannon; possibly other weapons.

External link 
 

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ja:ケルドン級
nl:Keldon klasse
Cardassian starship classes