The Émeraude-class submarines consisted of six submarines built for the French Navy during the first decade of the 20th century. One boat was sunk and another captured during the First World War and the survivors were scrapped after the war.
Pluviôse (Q51) was the name ship of her class of 18 submarines built for the French Navy in the first decade of the 20th century.
French submarine Narval (“Narwhal”) was a pioneering vessel of the French Navy, designed by Maxime Laubeuf and built at the end of the 19th century. She was designed in response to a competition set by the French Admiralty and had several revolutionary features which set the pattern for submarines for the next 50 years.
Turquoise was one of six Émeraude-class submarines built for the French Navy in the first decade of the 20th century.
Émeraude was the lead boat of her class of six submarines built for the French Navy in the first decade of the 20th century.
Prairial was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century. During World War I, Priarial collided with the British steamer Tropic in the English Channel off Le Havre, France, and sank with the loss of 19 of her 26 crew.
Ventôse was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
Floréal was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
Messidor was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
Papin was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
Giffard was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
The Naïade-class submarines, sometimes referred to as the Perle class were a group of submarines built for the French Navy at the beginning of the 20th century. There were twenty vessels in this class, which was designed by Gaston Romazotti. The class introduced internal combustion engines into French submarine design. They remained in service until just prior to the outbreak of the First World War.
The Farfadet class consisted of four submarines built for the French Navy at the beginning of the 20th century designed by Gabriel Maugas. Two boats were lost in diving accidents. All were disposed of prior to the outbreak of the First World War.
The Sirène-class submarines were a group of four submarines built for the French Navy during the first decade of the 20th century. They were stricken from the Navy List in November 1919.
The Aigrette-class submarines were a class of two submarines built for the French Navy between 1903 and 1905. They were essentially experimental submarines, and although in service during World War I, saw no action. The class was designed by Maxime Laubeuf and used Drzewiecki drop collar launchers and external cradles to launch torpedoes.
Aigrette was the lead boat of the Aigrette-class submarines built for the French Navy between 1902 and 1905. Laid down in May 1902, she was launched in February 1904 and commissioned in 1908. She was essentially an experimental submarine, and although in service during World War I, saw no action. The class was designed by Maxime Laubeuf and used Drzewiecki drop collar launchers and external cradles to launch torpedoes.
Cigogne was the second of two Aigrette-class submarines built for the French Navy between 1903 and 1905. Laid down in May 1902, she was launched in November 1904 and commissioned in July 1906. She was an essentially experimental submarine, and although in service during World War I, saw no action. The class was designed by Maxime Laubeuf and used Drzewiecki drop collar launchers and external cradles to launch torpedoes.
X was a steel single hull submarine built for the French Navy between 1904 and 1905. She was launched in November 1904 and commissioned in 1905. Gaston Romazzotti modified the design of Farfadet to create an experimental submarine which was the first with twin shafts.
The French submarine Z was an experimental submarine built for the French Navy between 1902 and 1905. It was laid down in April 1902, launched in March 1904 and completed in 1905. Designed by Gabriel Maugas, Z was essentially an experimental submarine and it was the first French submarine to be commissioned with a diesel engine although Aigrette was the first to be launched.
The French submarine Y was a experimental submarine built for the French Navy in the first decade of the 20th century. She was launched in 1905, but was only commissioned for her sea trials and remained in experimental status because her diesel engine could not be used underwater. A planned refit, which included adding an electric motor and batteries for underwater use in 1907 was cancelled as too expensive. Y was stricken from the navy list in 1909, but was retained for experimental purposes until 1911 when she was sold for scrap.
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