Related time notesBlack Swan Class: The F-22 of WWII ASW? - Key Ships Series 6, Episode 217 Sept 202325:25HMS Wren in Walker’s Second Support GroupChapterBlack Swan Class: The F-22 of WWII ASW? - Key Ships Series 6, Episode 217 Sept 202327:27Wren’s U-boat kills and patrol-aircraft supportNotable Point