 The three Type <unk> I boats of the Constantinople Flotilla seem to have patrolled primarily in the Black Sea . <unk> @-@ 8 was transferred to the Bulgarian Navy in May 1916 , and <unk> @-@ 7 disappeared in the Black Sea in October 1916 , leaving <unk> @-@ 14 as the sole remaining German Type <unk> I in the flotilla ; she was surrendered at Sevastopol in November 1918 to French armies stationed there during the Russian Civil War . 
