Name Opale Builder Arsenal de Cherbourg Completed 19 December 1908 Construction started October 1903 Length 45 m | Namesake Opal Laid down October 1903 Struck 12 November 1919 Launched 20 November 1906 Beam 3.9 m | |
 | ||
Opale was one of six Émeraude-class submarines built for the French Navy in the first decade of the 20th century.
References
French submarine Opale Wikipedia(Text) CC BY-SA