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 Naïade (1904) French submarine Naïade (1904) French submarine "Naïade" (Q15) was an early submarine built for the French Navy at the beginning of the 20th century. She was of the Romazotti type, and the name ship of her class. "Naiade" remained in service until just prior to the outbreak of World War I. "Naïade" was ordered by the French Navy under its 1900 building programme, the lead ship of a class of twenty. She was designed by Gaston Romazotti, an early French submarine engineer and director of the Cherbourg Naval Dockyard. "Naïade" was built at Cherbourg, and launched on 20 February 1904.