HMS Vanguard and Le Triomphant submarine collision across the seabed". However, a government spokesman said that there "was no compromise to nuclear safety". Hervé Morin, France's Minister of Defence, said that they "face an extremely simple technological problem, which is that these submarines are not detectable". 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
French submarine Pluviôse French submarine Pluviôse French submarine "Pluviôse" (Q51) was a Laubeuf type submarine built for the French Navy prior to World War I. She was the name ship of her class. "Pluviôse" was ordered by the French Navy as part of its 1905 programme and was laid down at the Cherbourg Naval Yard in November of that year. She was launched on 27 May 1907 and commissioned 10 May 1908. "Pluviôse" was equipped with Du Temple boilers and reciprocating steam engines for surface propulsion, and CGE Nancy electric motors for power while submerged. She carried eight torpedoes, two internally and six