 observed the snowflake display, reported sighting the convoy, and was promptly sunk by "Beverly" and "Vimy" after "Bibb" and "Toward" triangulated the submarine's location from the sighting report, using High-Frequency radio Direction-Finder (HF/DF or Huff-Duff).The destroyers rescued 44 of the submarine's crew.The Polish freighter "Zagloba" was torpedoed on the unprotected side of the convoy by and torpedoed the straggling American freighter "West Portal".