Rubuta ci gaba don wannan sakin layi - Jirgin ruwan Faransa "Casque" na ɗaya daga cikin dozin da aka gina don Sojojin Ruwa na Faransa a ƙarshen 1930s. An kammala jirgin ne a lokacin yakin Faransa a tsakiyar 1940 'yan kwanaki kafin Faransawa su sanya hannu kan yarjejeniyar tsagaita wuta
tare da Jamusawa. Lokacin da Jamusawa suka mamaye Vichy Faransa bayan da Allies suka sauka a Faransa ta Arewacin Afirka a watan Nuwambar 1942 kuma suka yi kokarin kama sojojin Faransa ba tare da wata matsala ba, mai rushewa yana daya daga cikin jiragen ruwa da aka kwashe don hana kama su. (Royal Italian Navy) sun yi ƙoƙarin ceton ta a cikin 1943, amma an yi watsi da ƙoƙarin a shekara mai zuwa. An sake dawo da jirgin a shekarar 1948 kuma an yi watsi da shi.