The Cygnus-class (or Cygnus-subtype), also known as the MK-VIIB class, was a sub-type of the Hermes-class scouts and were ordered for Starfleet appropriation on stardate 5099 (late-2260s).

Unlike the standard Hermes-class vessels, the Cygnus-class was designed to be outfitted for regular duties as command and diplomatic couriers. (TOS reference: Star Fleet Technical Manual)

Known vesselsEdit

• USS Apus (NCC-618)
• USS Aquila (NCC-623)
• USS Columbia (NCC-621)
• USS Corvus (NCC-620)
• USS Cygnus (NCC-617)
• USS Grus (NCC-624)
• USS Pavo (NCC-622)
• USS Phoenix (NCC-625)
• USS Tucana (NCC-619)

Starship classes of the United Federation of Planets
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By type	Federation cargo ship • Federation colony ship • Federation construction ship • Federation galaxy ship • Federation light cruiser (Intrepid-variant) • Federation mining freighter • Federation repair ship