Sirène-class submarine (1925)

The Sirène-class submarines were a sub-class of the 600 Series built for the French Navy prior to World War II. There were four vessels in the class, built to a Loire-Simonot design. They were ordered in 1925 and completed by 1927. The four boats of the Sirène class saw action during the Second World War, from September 1939 until the French armistice in June 1940.

General characteristics
The Sirènes had a displacement of 609 t surfaced and 757 t submerged. They had an endurance of 3,500 nmi at 7.5 kn, with a maximum surface speed of 13.5 kn, and a submerged speed of 7.5 kn. Their armament was seven torpedo tubes (3 forward, 2 midships, and 2 aft) with an outfit of 13 torpedoes. As with all French submarines of this period, the midships torpedo tubes were fitted externally in trainable mounts. They had a single 75 mm and two 8 mm machine guns, and were manned by crews of 41 men.

Ships

 * FRENCH SUBMARINE Sirène, scuttled November 1942 Toulon; raised, sunk in air raid June 1944.
 * FRENCH SUBMARINE Naïade, scuttled November 1942 Toulon; raised, sunk in air raid twice; April 1943, November 1943.
 * FRENCH SUBMARINE Galatée, scuttled November 1942 Toulon; raised, sunk in air raid June 1944.
 * FRENCH SUBMARINE Nymphe, decommissioned in 1938.