Yugoslav torpedo boat T9

The Yugoslav torpedo boat T9 was an ocean going torpedo boat used by the Royal Yugoslav Navy in 1919-1924. It was originally built by Austria-Hungary as the Schwalbe, a ship of the Kaiman class. On 1st January 1914 it was renamed to 60 T in accordance with an order from 19 November 1913 that all torpedo-boats in service should have number and letter designations, rather than their names. It was sold to Yugoslavia after the end of World War One in September of 1919. It was stricken from the Royal Yugoslav Navy in 1924, and broken up in 1928.

Construction
Schwalbe was built in the Stabilimento Tecnico Triestino shipbuilding facility in Trieste, Austria-Hungary for the Austro-Hungarian Navy. It was laid down on 14 September 1906, and launched on 8 April 1907 and was completed on 20 March 1909. It was 56 m long at the waterline and 54.9 m between perpendiculars, with a beam of 5.5 m and a draught of 1.3 m. Displacement was 209–211 t.

Two Yarrow three-drum boilers fed steam to a four-cylinder vertical triple expansion engine rated at 3000 ihp and driving one propeller shaft. This gave a speed of 26.2 kn. The ship had a crew of 31–38 and was built with an armament of four QF 3-pounder Hotchkiss guns and three 450 mm torpedo tubes. A single machine gun was added in 1915, and it was planned to replace one torpedo tube by a Škoda 66 mm L/30 gun in 1918, although it is unclear whether this was done.

Austria-Hungary
On 19 November 1913 it was ordered that the torpedo-boats give up their names and instead be known by a number, with the ships having a suffix number representing the ships builder. Schwalbe was renamed 60 T on 1 January 1914. In August 1914, following the outbreak of the First World War, 60 T was a member of the 6th Torpedo craft division of the 2nd Torpedo craft flotilla.