Curnow class

The Curnow class tactical cruiser was a type of Federation starship on active duty during at least the late 23rd century. Construction of the class was authorized in December, 2287 and the first ships of the class were commissioned probably ca. 2289 or 2290. 

The design lineage of the Curnows was derived from the heavy cruisers. However, ships of the Curnow class had three nacelles. Standard crew complement was 940 officers and crew plus 60 surface action specialists.

The secondary hull was similar to that of the upgraded, with hull reinforcements on either side of the navigational deflector.