Cygnus class

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

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