| History | |
|---|---|
 Austria-Hungary | |
| Name | Donau |
| Builder | Stabilimento Tecnico Triestino, Trieste |
| Laid down | May 1855 |
| Launched | 20 November 1856 |
| Completed | 1857 |
| Fate | Broken up, 1872 |
| General characteristics | |
| Type | Radetzky-class frigate |
| Displacement | 2,165 long tons (2,200 t) (full load) |
| Length | 70.62 m (231 ft 8 in) length overall |
| Beam | 13.06 m (42 ft 10 in) |
| Draft | 5.46 m (17 ft 11 in) |
| Installed power | 1,200 ihp (890 kW) |
| Propulsion |
|
| Speed | 9 knots (17 km/h; 10 mph) |
| Complement | 354 |
| Armament |
|
SMS Donau was a screw frigate, the last of the three vessels of the Radetzky class that were built for the Austrian Navy in the 1850s.