Eclipse class

The Eclipse-class was Federation intel starship cruiser developed by Starfleet Intelligence for intelligence gathering operations in the Delta Quadrant. The Eclipse-class was launched in 2410 as part of Operation Delta Rising. The Eclipse-class was one of few Federation cruisers equipped with a cloaking device, and one of the few Starfleet ships outfitted with four warp nacelles. 

Specifications
The Eclipse-class cruiser was designed to perform deep-space espionage missions without being detected. The class was launched in 2410 as part of Operation Delta Rising. A cloaking device was part of the vessel's standard equipment. Additional special systems included active sensor arrays to expose a target's vulnerabilities, and a console to drain an opponent's structural integrity field. 

Ships of the class required a minimum rank of Vice Admiral of a commanding officer. Its bridge crew consisted of one lieutenant science officer one commander and lieutenant commander engineer, one lieutenant commander tactical officer and one seat open for an ensign of any department. Additionally, the bridge supported an intelligence officer.

The Eclipse-class was part of a series of starship classes developed for deep-space intelligence operations, along with the -, Guardian- and es.