Saint-Nazaire (44). 25/01/11. STX Europe shipbuilding group. "BPC Dixmude", ordered by the French Navy, is a helicopter carrier, referred as a Mistral Class or projection and command ship (BPC). France signed an agreement today to sell four Mistral-class amphibious assault warships to Russia; the two firt ships will be built by STX naval shipyard in Saint Nazaire and France will transfer technology to the Russians to enable them to build the two other ships.