SMS S34[a][b] was a V25-class large torpedo boat of the Imperial German Navy that served during the First World War.

She also took part in attacks on shipping in the English Channel, including the Battle of Dover Strait in October 1916.

The new, larger, designs would, as well as being more seaworthy, carry a heavier armament and would be oil-fueled only, rather than use the mix of oil- and coal-fueled boilers that German torpedo boats had used up to then.

[4] The machinery was rated at 23,500 shaft horsepower (17,500 kW) and gave a design speed of 33.5 knots (38.6 mph; 62.0 km/h).

220 t of oil was carried, giving a range of 1,100 nautical miles (1,300 mi; 2,000 km) at 20 knots (23 mph; 37 km/h).

IX Flotilla was part of the force commanded by Vice-Admiral Franz von Hipper, consisting of the battlecruisers of Scouting Group I, the light cruisers of Scouting Group II and the 30 torpedo boats of II, VI and IX Flotillas.

[19] In October 1916, III and IX Torpedo Boat Flotillas were ordered to reinforce the German naval forces based in Flanders, in order to disrupt the Dover Barrage, a series of anti submarine minefields and nets that attempted to stop U-boats from operating in the English Channel, and to directly attack cross-Channel shipping.

[25][26] The 18th Half Flotilla did not encounter any of the hoped for merchant ships, but on its return journey clashed with three British destroyers[d] which attempted to pursue, but lost contact after German fire caused Mohawk's rudder to jam.

[28][29] IX Flotilla continued to operate from Flanders, attacking shipping off the coast of the Netherlands on 1 November.

[31][32] On the night of 26/27 November, IX Flotilla sortied again, stopping the Dutch merchant ship Beijerland and taking her pilot prisoner, and sinking the naval trawler Narval.