SM UB-10 was a German Type UB I submarine or U-boat in the German Imperial Navy during World War I.
UB-10 was identical in design to UB-15 (shown here in service as the Austro-Hungarian U-11)
The German war zone (German: Kriegsgebiet) for the first submarine offensive.
The majority of UB-10's victims were fishing smacks, traditionally outfitted with red ochre sails, like this contemporary smack.
UC-10 was sunk by E54 (similar in appearance to AE2, pictured) after UB-10 avoided detection by the British submarine on 21 August 1915.
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.