The USS Winterthur (NCC-28405) was an Ambassador-class starship. (Star Trek: Shabonee;Star Trek: The Prospect Chronicles) Captain Rafe Mahler took command of the Winterthur in 2370. (Star Trek: Shabonee: "Dirge") In the same year, under Mahler's command, the Winterthur, docked at Deep Space 9, rescued the survivors from the USS Prospect's saucer section and ensured no Dominion starships were following the Prospect from the Gamma Quadrant through the Bajoran wormhole. (Star Trek: The Prospect Chronicles: "Pure Massacre") Named for the city of Winterthur in Switzerland.