German torpedo boat T9

kW) using steam from four high-pressure water-tube boilers^[2] which would propel the boats at 35 knots (65 km/h; 40 mph). They carried enough fuel oil to give them a range of 1,200 nautical miles (2,200 km; 1,400 mi) at 19 knots (35 km/h; 22 mph).^[3]

minesweeping paravanes before completion. Late-war additions were limited to the installation of radar, radar detectors and additional AA guns, usually at the expense of the aft torpedo tube mount.^[5]

working up until August when she began convoy escort duties in the Baltic Sea.^[6] By November T9 had transferred to Norway. German aerial reconnaissance had located two coastal convoys in early November that the Kriegsmarine estimated would pass Kinnaird Head, Scotland, during the early morning of 7 November. Both the 1st and 2nd Torpedo Boat Flotillas, consisting of T9 and her sisters, T1, T4, T6, T7, T8 and T10, sailed on 6 November in an attempt to pass through a gap in the British minefields and intercept the convoys around 02:00 the following morning. The British had extended their minefields further north unbeknownst to the Germans and T6 struck a mine shortly after midnight and sank. T7 and T8 rescued the survivors and the operation was abandoned. T9 was one of the escorts for a minelaying mission off Stavanger, Norway, on the night of 27/28 January 1941 together with her sisters T5 and T12 and the minesweepers M15 and M22. T9 began a refit in March in Kiel that lasted until July. The boat was reduced to reserve on 15 August.^[7]

Danzig on 8 March 1945. She was sunk by British aircraft on 3 May in the Kieler Förde at 54°26′N 18°34′E / 54.433°N 18.567°E / 54.433; 18.567. Her wreck was demolished by depth charges on 10 December.^[8]