 The submarine conducted seven patrols and sank 38 ships during the war for a total loss of 97 @,@ 284 gross register tons ( GRT ) . She operated as part of the Pola Flotilla based in Cattaro . UB @-@ 50 surrendered on 16 January 1919 with the remainder of the Pola Flotilla following an order by Admiral Reinhard Scheer to return to port . During her passage through the Straits of Gibraltar , she managed to sink the battleship HMS Britannia . UB @-@ 50 was later broken up at Swansea . 
