Ingram class

The Ingram-class space control ship was a class of starship active in the last quarter of the 23rd century. ()

The original class ship, USS, was constructed in the early 2280s and was the testbed for the transwarp drive system. After unsuccessful trials, its propulsion systems were swapped for conventional warp drive nacelles and was redesignated as a heavy cruiser. USS wound up being the only space control ship built to specs.

Two other hulls, Simonov and Richmond, were cancelled and planned funding for the fifth vessel was discontinued.

Reference

 * Guenther, Todd. USS Excelsior Ingram Class Plans. Star Station Aurora, 1985.