|Federation Other Ships Database - U.S.S. Hauck|
|STARSHIP NAME||REGISTRY NUMBER|
|mentioned in Star Trek: The Magazine (May 2002) as the ship flying in formation with USS Voyager on a test flight at Warp 1.03 in 2371.
The article, written by Rick Sternbach, has the status of a technical manual, so the ship should be regarded as canon. As the Hauck merely served for "engineering support and emergency backup" at low warp, it could be almost any ship class.
Text from the Ex Astris Scientia - Bernd Schneiders Star Trek Website