Kammala jumla mai zuwa: Jirgin ruwan karkashin ruwa na Faransa "Narval" jirgin ruwan karkashin ruwa ne na "Requin" wanda aka gina don Sojojin ruwan Faransa a tsakiyar shekarun 1920. An kafa shi a watan Maris na 1923, an kaddamar da shi a watan Mayu na 1925 kuma an ba shi izini a Yuli 1926. Ya shiga cikin sojojin ruwan Faransa na 'yanci a Malta a lokacin
Faransa ta mika wuya a lokacin yakin duniya na biyu. A ranar 15 ga Disamba, 1940, "Narval" ya nutse bayan ya buge wani ma'adinai a cikin wannan filin ma'adinai a tsibirin Kerkennah wanda ya nutse 'yar'uwarta "Morse" watanni shida da suka gabata.