HMS Vanguard and Le Triomphant submarine collision HMS Vanguard and Le Triomphant submarine collision The submarines HMS "Vanguard" and "Triomphant" collided in the Atlantic Ocean in the night between 3–4 February 2009. Both are nuclear-powered ballistic missile submarines. The Royal Navy's and the French Navy's both sustained damage, but no injuries or radioactivity releases were reported. At the time of the collision, both vessels were submerged and, according to the UK Ministry of Defence, moving "at very low speed"; both are equipped with active and passive sonar, although only the latter is used on an operational patrol. HMS "Vanguard" was on a routine patrol in the Eastern
French submarine Souffleur (1924) allowed it to attain speeds of while submerged and on the surface. Their surfaced range was at , and at , with a submerged range of at . French submarine Souffleur (1924) The French submarine "Souffleur" was a built for the French Navy in the mid-1920s. Laid down in October 1922, it was launched two years later and commissioned in August 1926. "Souffleur" was torpedoed and sunk on 25 June 1941 off Beyrut, Lebanon in position by the British submarine . long, with a beam of and a draught of , "Requin"-class submarines could dive up to . The submarine