On 27 January 2010, Le Terrible launched an M51 SLBM from underwater in Audierne Bay.[9] The missile reached its target 2,000 kilometres (1,200 mi) off North Carolina; the 4,500-kilometre (2,800 mi) flight took about 20 minutes.[10]
The submarine was put into service on 20 September 2010 armed with 16 M51 missiles.[2]Terrible is fitted with a new SYCOBS combat system (SYstem de COmbat Barracuda-SSBN) which will also be installed on the new Barracuda class SSNs.[11][12]
In July 2017 French president Emmanuel Macron visited the submarine in the Atlantic and took part in a simulated missile launch.[13]
^Kristensen, Hans. "France"(PDF). Assuring Destruction Forever: Nuclear Weapon Modernization Around the World. Women’s International League for Peace and Freedom. Retrieved 11 April 2013.