The Kuhnri class (Rihannsu: redshirt) was a freighter class active in the late 24th century and the early 25th century. It was powered by an Ariennye Mark VI warp drive, with warp coils for these drives being scarce in Lyran territory, Urie winning the Fire Mountain Rally in order to purchase warp coils for a Kuhnri-class ship that was captured as part of a Klingon convoy. (Star Trek: The Stoneship Files: "At the Soapbox Races")