SM UB-17 was a German Type UB I submarine or U-boat in the German Imperial Navy during World War I. The submarine disappeared during a patrol in March 1918.
The German war zone (German: Kriegsgebiet) for the first submarine offensive.
Ten of UB-17's sixteen victims were fishing smacks, traditionally outfitted with red ochre sails, like this contemporary smack.
German Type UB I submarine
The Type UB I submarine was a class of small coastal submarines (U-boats) built in Germany at the beginning of the First World War. Twenty boats were constructed, most of which went into service with the German Imperial Navy Boats of this design were also operated by the Austro-Hungarian Navy and the Bulgarian Navy. In the Austro-Hungarian Navy, it was called the U-10 class.
SM UB-2 and SM UB-16 in Flanders.