 U @-@ 38 would depart Lorient with Liebe in command once again on 18 December 1940 . The eighth war patrol of her career would involve operations again in the Northwest Approaches . During this patrol , the submarine would hit and sink two ships . On 27 December , U @-@ 38 destroyed the British ship SS Waiotira , and on 31 December , she sank the Swedish motor freighter SS Valparaiso , sailing as part of the HX @-@ 97 convoy from Halifax to Glasgow . U @-@ 38 returned to port on 22 January 1941 . 
