French submarine Tourville

Tourville (S637) is a French nuclear attack submarine (SNA).^[4] After the Suffren and Duguay-Trouin, it is the third of six Suffren-class submarines in the Barracuda program, the French Navy's second-generation nuclear attack submarine. Like several French naval ships before her, she is named after Vice-Admiral and Marshal of France Anne Hilarion de Costentin de Tourville.^[5]

History
France
Name	Tourville
Namesake	Anne Hilarion de Costentin de Tourville
Builder	Naval Group
Laid down	28 June 2011
Launched	12 July 2024
Commissioned	16 November 2024
General characteristics
Class & type	Suffren-class submarine
Displacement	4,650 t surfaced 5,300 t submerged
Length	99.5 m (326 ft 5 in)
Beam	8.8 m (28 ft 10 in)
Draught	7.3 m (23 ft 11 in)
Propulsion	K15 nuclear reactor, 150 MW (200,000 hp) 2 x Turbo-generator groups: 10 MW (13,000 hp) each 2 x emergency diesel generators 480 kW (640 hp) each 1 x pump-jet electrically driven
Speed	>25 kn (46 km/h; 29 mph), submerged 14 kn (26 km/h; 16 mph), surfaced
Range	Unlimited
Endurance	70 days of food[1]
Complement	65 crew
Armament	4 × 533 mm (21.0 in) tubes 20 storage racks, including MdCN cruise missiles Exocet SM39 anti-ship missiles F21 Artemis heavy torpedoes FG29 mines[2][3]

Construction began on 28 June 2011, at Cherbourg.^[5] She first set sail in July 2024.^[4] A few weeks later, on 11 September, the Red crew of the new submarine was formed at a ceremony at Fort Saint-Louis, Toulon. Just over two weeks after her departure, Tourville returned to Cherbourg for a technical intervention to apply a few corrective measures.^[6] The submarine was delivered to the navy and entered active service on 16 November 2024.^[7] She was declared fully operational in July 2025.^[8]

Service

One of her first missions was a visit to Canada in March 2025 to test cold water performance. It targeted a possible Canadian buy of French subs by its navy. ^[9]