The Danube-class was a type of runabout fielded by the Federation Starfleet during the 24th century.
The Danube-class is a class of river. These are generally very long, but Nile class ones are longer.
The Danube-class was a type of runabout spacecraft utilized by Starfleet in the late 24th century. (DS9 episodes: "Emissary", "Hippocratic Oath", DS9 reference: Star Trek: Deep Space Nine Technical Manual)
The Danube-class was a class of runabout used by Starfleet during the late 24th century. On Deep Space 9 all of the runabouts were named after Earth rivers.
The Danube-class was a type of Federation runabout in operation during the latter half of the 24th century. All runabouts assigned to Deep Space 9 were named after rivers on Earth.
The Danube-class was a type of Federation runabout in operation during the latter half of the 24th century. It massed 158.7 metric tons. Like other runabouts, members of the class were named for rivers.
The Danube-class, also known as a Runabout-class, was a type of Federation runabout in operation during the latter half of the 24th century. All runabouts assigned to Deep Space 9 were named after rivers on Earth. (DS9: "Family Business")