The Type UB III submarine was a class of a U-boat built during World War I by the German Imperial Navy.
UB-86 washed ashore, 1921
German Type UB III submarine model 1
German Type UB III submarine model 3
The Type UC II submarine was a class of coastal minelaying U-boats designed and built for the Imperial German Navy during World War I. They were a significant improvement over the preceding Type UC I
Type UB III submarine
…and since the actual coastal Type UB II submarine being built at that time was too small, a design was derived from the successful, small minelaying Type UC II submarine for a medium-sized U-boat capable of reaching the Mediterranean or operating around the British Isles. The forward section of the Type UC II with the…
Two Type UC II submarines alongside Austro-Hungarian depot ship Amphitrite at Gjenovic, Bocche di Cattaro, in the Adriatic Sea
The UC-56 was interned in Spain in March 1918